Finish Selecting Your Vehicle to Shop For Your Oil Pump

Choose a Year for your GMC 's Oil Pump

  • 2018
  • 2017
  • 2016
  • 2015
  • 2014
  • 2013
  • 2012
  • 2011
  • 2010
  • 2009
  • 2008
  • 2007
  • 2006
  • 2005
  • 2004
  • 2003
  • 2002
  • 2001
  • 2000
  • 1999
  • 1998
  • 1997
  • 1996
  • 1995
  • 1994
  • 1993
  • 1992
  • 1991
  • 1990
  • 1989
  • 1988
  • 1987
  • 1986
  • 1985
  • 1984
  • 1983
  • 1982
  • 1981
  • 1980
  • 1979
  • 1978
  • 1977
  • 1976
  • 1975
  • 1974
  • 1973
  • 1972
  • 1971
  • 1970
  • 1969
  • 1968
  • 1967
  • 1966
  • 1965
  • 1964
  • 1963
  • 1962
  • 1961
  • 1960
Show More Years

Shop By Brand

The Following brands are available based on your search.

  • DJ Rock
    DJ Rock
  • Genuine
    Genuine
  • Mahle
    Mahle
  • Sealed Power
    Sealed Power

Best Selling Genuine Gmc Oil Pumps

  • We Stock the following top leading brands, including Genuine, Mahle, Sealed Power
  • Constantly Updated Inventory of Gmc Replacement Oil Pump Parts

Genuine
2008 GMC Yukon XL 1500 Engine Oil Pump Genuine

P311-3EC19C4    W0133-1866488  New

Qty:
180.34
Genuine Engine Oil Pump
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
Brand: Genuine
Additional Fitment Information:
Vehicle Engine Designation
2008 - GMC Yukon XL 1500 LC9
Genuine
2012 GMC Canyon Engine Oil Pump 5 Cyl 3.7L Genuine

P311-2600F43    W0133-2009900  New

Qty:
283.20
Genuine Engine Oil Pump
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Oil Pump and Timing Cover Assembly
Brand: Genuine
Additional Fitment Information:
Vehicle Block Engine CID CC
2012 - GMC Canyon L 5 Cyl 3.7L 223 3654
Genuine
2011 GMC Terrain Engine Oil Pump 6 Cyl 3.0L Genuine

P311-2042F39    W0133-2009890  New

Qty:
236.76
Genuine Engine Oil Pump
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Includes Front Cover
Brand: Genuine
Additional Fitment Information:
Vehicle Block Engine CID CC
2011 - GMC Terrain V 6 Cyl 3.0L 182 -
Genuine
1996 GMC C1500 Engine Oil Pump 6 Cyl 4.3L Genuine

P311-3394520    W0133-1763690  New

Qty:
195.07
Genuine Engine Oil Pump
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • - 3/4" Diameter Tube
Brand: Genuine
Additional Fitment Information:
Vehicle Block Engine CID CC
1996 - GMC C1500 V 6 Cyl 4.3L 262 -
Genuine
1994 GMC G2500 Engine Oil Pump 8 Cyl 5.0L Genuine

P311-3394520    W0133-1763690  New

Qty:
195.07
Genuine Engine Oil Pump
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • ; with 3/4" Diameter Tube
  • - 3/4" Diameter Tube
Brand: Genuine
Additional Fitment Information:
Vehicle Block Engine CID CC
1994 - GMC G2500 V 8 Cyl 5.0L 305 -
Mahle
1997 GMC C1500 Engine Oil Pump 6 Cyl 4.3L Mahle

P311-3C1EDC1    W0133-1763690  New

Qty:
65.14
Mahle Engine Oil Pump
Brand: Mahle
Additional Fitment Information:
Vehicle Block Engine CID CC
1997 - GMC C1500 V 6 Cyl 4.3L 262 -
Mahle
1994 GMC C2500 Engine Oil Pump 8 Cyl 5.0L Mahle

P311-3C1EDC1    W0133-1763690  New

Qty:
65.14
Mahle Engine Oil Pump
  • ; with 3/4" Diameter Tube
Brand: Mahle
Additional Fitment Information:
Vehicle Block Engine CID CC
1994 - GMC C2500 V 8 Cyl 5.0L 305 -
Sealed Power
1993 GMC C1500 Engine Oil Pump 6 Cyl 4.3L Sealed Power

P311-3E3D45E    224-43469  New

DM155 , HM155 , 8-12555-283-0 , 12552643 , OM-155 , M155 , 12555283 , 93442037 , 10168529 , 601-3024 , 601-8146

Qty:
42.60
Sealed Power Engine Oil Pump
  • Engine Oil Pump
  • Standard Volume And Pressure Small Block Oil Pump Casting 3/4in Screen Inlet
  • Sealed Power 224-43469 Oil Pump
  • Product Attributes:
    • Design Feature 1: 3/4" Inlet
    • Design Feature 2: W/nylon Shaft Guide
  • Sealed Power parts provide innovative designs, use leading-edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today's modern engines.
Brand: Sealed Power
Additional Fitment Information:
Vehicle Engine VIN Block Engine CID CC
1993 - GMC C1500 Z V 6 Cyl 4.3L 262 -
Sealed Power
1992 GMC Sonoma Engine Oil Pump 6 Cyl 2.8L Sealed Power

P311-50DBB58    224-4152  New

P134 , 10229785 , 12593581 , 601-1922 , 8-10118-640-0 , 4152 , M134 , 10229787 , 10118640 , DM134 , HM134 , 89060444

Qty:
95.62
Sealed Power Engine Oil Pump
  • Engine Oil Pump
  • Standard Volume And Pressure
  • Sealed Power 224-4152 Oil Pump
  • Product Attributes:
    • Design Feature 1: 3/4" Inlet Tube
  • Sealed Power parts provide innovative designs, use leading-edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today's modern engines.
Brand: Sealed Power
Additional Fitment Information:
Vehicle Engine VIN Block Engine CID CC
1992 - GMC Sonoma R V 6 Cyl 2.8L 173 -
Sealed Power
1976 GMC C15 Suburban Engine Oil Pump 6 Cyl 4.1L Sealed Power

P311-384CA9F    224-4157  New

OP69HV , EM62HV , 4157 , WG515X , 50085 , M62HV , DM62HV , P62HV , HM62HV , 601-1110 , MM-62HV , OP182 , M-62HV , A62HV

Qty:
83.56
Sealed Power Engine Oil Pump
  • Engine Oil Pump
  • High Volume Pump
  • Sealed Power 224-4157 Oil Pump
  • Product Attributes:
    • Engine Family: L6
    • Manufacture: Chevrolet
    • Note: High Volume
    • Part Alert: Check Pan For Clearance
  • Sealed Power parts provide innovative designs, use leading-edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today's modern engines.
Brand: Sealed Power
Additional Fitment Information:
Vehicle Block Engine CID CC
1976 - GMC C15 Suburban L 6 Cyl 4.1L 250 -
Sealed Power
1977 GMC C25 Engine Oil Pump 6 Cyl 4.1L Sealed Power

P311-507BE00    224-4147  New

OP117 , A62 , EM62 , P62 , EM62S4 , OP515 , 14091485 , 3832449 , M62 , 4147 , 601-1079 , OP69 , HM62 , 3843242 , 50032 , MM-62 , M-62 , DM62

Qty:
42.63
Sealed Power Engine Oil Pump
  • Engine Oil Pump
  • Standard Volume And Pressure
  • Sealed Power 224-4147 Oil Pump
  • Product Attributes:
    • Engine Family: L6
    • Manufacture: Chevrolet
    • Note: O.e. Replacement
  • Sealed Power parts provide innovative designs, use leading-edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today's modern engines.
Brand: Sealed Power
Additional Fitment Information:
Vehicle Block Engine CID CC
1977 - GMC C25 L 6 Cyl 4.1L 250 -
Sealed Power
1980 GMC C1500 Engine Oil Pump 8 Cyl 5.7L Sealed Power

P311-405B26F    224-4146  New

DM55 , OP55 , 14057041 , 3764547 , 50029 , 12555884 , 3821979 , HM55 , EP55 , A55 , 10055850 , 93427692 , EM55 , M-55 , 601-1057 , OM-55 , 12555284 , 3764549 , 10055849 , P55 , M55 , MM-55 , OP116 , OP319 , 4146 , 3755420

Qty:
33.09
Sealed Power Engine Oil Pump
  • Engine Oil Pump
  • Standard Volume And Pressure Small Block Oil Pump Casting 5/8in Screen Inlet
  • Sealed Power 224-4146 Oil Pump
  • Product Attributes:
    • Design Feature 1: 5/8" Inlet
    • Engine Family: Small Block
    • Manufacture: Chevrolet
    • Note: O.e. Replacement
  • Sealed Power parts provide innovative designs, use leading-edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today's modern engines.
Brand: Sealed Power
Additional Fitment Information:
Vehicle Engine VIN Block Engine CID CC
1980 - GMC C1500 M V 8 Cyl 5.7L 350 -
Sealed Power
1976 GMC C15 Engine Oil Pump 8 Cyl 5.7L Sealed Power

P311-0522B6F    224-4143  New

A55HV , EP55HV , OM-55-HV , P55HV , OP56 , 50135 , DM55HV , 6018075 , 4143 , OP115 , HM55HV , M55HV , WG318X , M-55HV , 601-1047 , EM99HVS

Qty:
51.70
Sealed Power Engine Oil Pump
  • Engine Oil Pump
  • High Volume Pump Small Block Oil Pump Casting 5/8in Screen Inlet Must Use Intermediate Shaft with Steel Guide
  • Sealed Power 224-4143 Oil Pump
  • Product Attributes:
    • Design Feature 1: 5/8" Inlet
    • Engine Family: Small Block
    • Manufacture: Chevrolet
    • Note: High Volume
    • Note 2: Requires 224-6146e Shaft
    • Part Alert: Check Pan For Clearance
    • Part Material: Use Shaft W/steel Guide
  • Sealed Power parts provide innovative designs, use leading-edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today's modern engines.
Brand: Sealed Power
Additional Fitment Information:
Vehicle Block Engine CID CC
1976 - GMC C15 V 8 Cyl 5.7L 350 -
Sealed Power
1990 GMC S15 Engine Oil Pump 6 Cyl 2.8L Sealed Power

P311-50DBB58    224-4152  New

P134 , 10229785 , 12593581 , 601-1922 , 8-10118-640-0 , 4152 , M134 , 10229787 , 10118640 , DM134 , HM134 , 89060444

Qty:
95.62
Sealed Power Engine Oil Pump
  • Engine Oil Pump
  • 2nd Design with 3/4in Diameter Inlet Hole Standard Volume And Pressure
  • Sealed Power 224-4152 Oil Pump
  • Product Attributes:
    • Design Feature 1: 3/4" Inlet Tube
  • Sealed Power parts provide innovative designs, use leading-edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today's modern engines.
Brand: Sealed Power
Additional Fitment Information:
Vehicle Engine VIN Block Engine CID CC
1990 - GMC S15 R V 6 Cyl 2.8L 173 -
Sealed Power
2002 GMC Sierra 1500 Engine Oil Pump 8 Cyl 5.3L Sealed Power

P311-3F368AC    224-43645  New

12606311 , 601-2106 , 12563964 , 12678151 , 601-8191 , 12586665 , 17801830 , M295 , 12 58 6665 , 8-12586-665-0

Qty:
124.30
Sealed Power Engine Oil Pump
  • Engine Oil Pump
  • Standard Volume And Pressure Does Not Include Oil Pickup Tube Assembly
  • Sealed Power 224-43645 Oil Pump
  • Product Attributes:
    • Design Feature 1: Std. Volume & Pressure
  • Sealed Power parts provide innovative designs, use leading-edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today's modern engines.
Brand: Sealed Power
Additional Fitment Information:
Vehicle Engine VIN Block Engine CID CC
2002 - GMC Sierra 1500 T V 8 Cyl 5.3L 325 5328
Sealed Power
1997 GMC Savana 2500 Engine Oil Pump 8 Cyl 6.5L Sealed Power

P311-44196AF    224-43621  New

12564768 , 601-2091 , M255-294S

Qty:
107.42
Sealed Power Engine Oil Pump
  • Engine Oil Pump
  • Standard Volume And Pressure Oil Pickup Tube And Screen Included
  • Sealed Power 224-43621 Oil Pump
  • Product Attributes:
    • Design Feature 1: Incl. Screen
  • Sealed Power parts provide innovative designs, use leading-edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today's modern engines.
Brand: Sealed Power
Additional Fitment Information:
Vehicle Aspiration Fuel Type Cylinder Head Type Block Engine CID CC
1997 - GMC Savana 2500 Turbocharged DIESEL OHV V 8 Cyl 6.5L 395 -
Sealed Power
2014 GMC Yukon XL 1500 Engine Oil Pump 8 Cyl 5.3L Sealed Power

P311-3F368AC    224-43645  New

12606311 , 601-2106 , 12563964 , 12678151 , 601-8191 , 12586665 , 17801830 , M295 , 12 58 6665 , 8-12586-665-0

Qty:
124.30
Sealed Power Engine Oil Pump
  • Engine Oil Pump
  • with Cast Iron Block Standard Volume And Pressure Does Not Include Oil Pickup Tube Assembly
  • Sealed Power 224-43645 Oil Pump
  • Product Attributes:
    • Design Feature 1: Std. Volume & Pressure
  • Sealed Power parts provide innovative designs, use leading-edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today's modern engines.
Brand: Sealed Power
Additional Fitment Information:
Vehicle Engine VIN Block Engine CID CC
2014 - GMC Yukon XL 1500 7 V 8 Cyl 5.3L 325 5328
Sealed Power
1988 GMC C1500 Engine Oil Pump 8 Cyl 5.0L Sealed Power

P311-402A9D5    224-43469V  New

601-8147 , OM-155-HV , M155HV , DM155HV

Qty:
56.59
Sealed Power Engine Oil Pump
  • Oil Pump
  • ; Small Block Oil Pump Casting High Volume Pump 3/4in Screen Inlet Must Use Intermediate Shaft with Steel Guide
  • Speed-Pro 224-43469V Oil Pump
  • Product Attributes:
    • Consumer Warranty 1: Due To The Nature Of Performance Applications, Speed-pro Parts Are Sold Without Any Expressed Warranty Or Any Implied Warranty Of Merchantability Or Fitness For A Particular Purpose.
    • Consumer Warranty 2: Federal-mogul Shall Not, Under Any Circumstances, Be Liable For Any Special, Incidental Or Consequential Damages Which May Arise And/or Result From The Sale, Installation Or Use Of These Parts.
    • Engine Family: Small Block
    • Manufacture: Chevrolet
    • Note: High Volume
    • Note 2: 1993 And Later; 3/4" Inlet; Street Performance
    • Part Alert: Check Pan For Clearance
    • What is in the box: In The Box: Oil Pump
  • Speed-Pro® delivers the power you need and the value and quality that you deserve. Whether you are running at the track, chasing trophies on the strip, or just cruising down the road, count on Speed-Pro® to provide the best value in HP engine components
Brand: Sealed Power
Additional Fitment Information:
Vehicle Block Engine CID CC
1988 - GMC C1500 V 8 Cyl 5.0L 305 -

Latest Car Advice

CarJunky AutoAdvice

2001 gmc envoy oil pressure gauge

Showing 2 out of 4 Posts | Show 2 Hidden Posts
Question From razorx on 2001 gmc envoy oil pressure gauge

i have a 2001 gmc envoy oil pressure gauge will drop after driving few miles r turning on a/c.no knocking smoking r power loss.can turn off car when this happens then start up and have pressure.just got engine flushed but still doing same.

Response From Hammer Time

just got engine flushed but still doing same.

That's a big mistake and should never be done.

The first thing you need to do is test the pressure using a manual gauge to find out if you really have low oil pressure or just a faulty gauge.

Response From razorx Top Rated Answer

they done it at a shop didnt replace gauge.i thought it might be oil pump screen r sending unit need help and advice please

Response From Hammer Time

I just gave you the advice you need.

98 GMC quit @70mph-no start

Showing 3 out of 14 Posts | Show 11 Hidden Posts
Question From Willybill on 98 GMC quit @70mph-no start

1998 GMC K1500 5.0L 144,000 miles, The plugs and wires were changed 4 months ago.Quit going down the road and had to be towed. It would crank, but not start. I ckecked the plugs for spark and didn't have any so I checked the distributor cap and rotor and they needed to changed. After changing them I had spark at the plugs, but it still wouldn't start. It cranks over 3 or 4 times then almost stop before turning over 3 or 4 more times and do it all over again. My son thinks it jumped timing.

Response From Sidom

If you have zero pressure after running HT's test, a backyard trick you can try is to get a good sized block of wood or dead blow hammer & beat on the bottom of the tank (being careful not to damage the tank) where the fuel pump rests. If it starts that would confirm a bad pump.....

If it does start.....don't drive it, replace the pump, it will just stranded you again.............

Response From Willybill

Thanks, Hammer Time & Sidom, it took awhile to get a pressure gauge, it tested at 60 psi while cranking and didn't start The pressure slowly drops, it takes awhile to get to 50 psi. The camshaft and crankshaft sensors have been changed. There is voltage to the ign. module is about the same as battery voltage. What else is there to ckeck for?

Response From Hammer Time

First check for spark. If you have spark, try spraying some starting fluid into the intake and see if it fires for a moment on that.

Response From Willybill

Yes, there is spark and it does fire with starting fluid.

Response From Hammer Time

Ok, that narrows it down to a fuel problem. If you are sure the pressure is maintaining from the pump and the fuel itself is not bad, then we have to concentrate on the fuel injectors. Check all your fuses carefully. You may need a scan tool to see what the PCM is or isn't doing.

Response From Willybill

After reading other posts I decided to check the distributor gear and found it to be very worn. I am in the process of putting it back together. I know #1 cyl. needs to be at top dead center, but how do I know if it is on the compression stroke without taking the valve cover off on that side? I can't see the timing marks because of the AC and power steering pumps and bracket. If it stops raining because its not suppose to be raining, I'm going to work on it today.

Response From Sidom

Everything HT said is correct.......

I'm going off memory here so take it with a grain of salt...... Some 5.7s still have timing marks under the water pump and some don't...... Take a look, if your's does then this should work....

Pull #1 plug & bump the engine over until you feel compression coming out of hole. Then put a ratchet on the crank and roll it over to TDC on the marks. Now the dist is ready to be put in.....

Were gonna back up just a bit for a sec..... Some 5.7s had a factory white line on the dist & intake. It was on the backside so you would need a mirror to see.....If yours has one you're in luck. If your replacing the dist put a white line on the EXACT same spot at the old one.

Ok back to the install, look down at the dist and on the plate somewhere you should see a 6 and the over a bit an 8. Face the rotor tip at the 8. Lining up the 2 white lines between the dist & manifold set the dist in and this should set it to #1. You can verify but looking in the cap and tracing where the #1 wires goes into to cap and where the #1 electrode is. The cap is a weird design but you'll see what I mean. If the distrib doesn't go all the way down then the oil pump drive isn't lined up. you can either pull the dist and use a screwdriver to line it up or what I do and just have someone bump it over (not crank) until it drops in. Then just bring it back up on compression and make sure the rotor is pointing at the #1 electrode. Line up the 2 white marks and you should be good.

No white lines and you will need a scanner that shows the cam retard PID to set the timing. If it's off it will set a P1345. You can't use the marks on the balancer, that won't work.....

Response From Willybill

Have been working at getting the dist. to drop into place for the last 4 hr. Got any secrets?

Response From Hammer Time

Once you get the teeth in the gear started, hold a steady pressure down and have someone bump the starter. The cam gear and the oil pump drive never align together because the distributor turns as it drops. You'll have to estimate where the rotor is going to land when all the way down to pick the right tooth.

Response From Willybill Top Rated Answer

Well, its been a week since I had a chance to work on the truck. I have a job 4 days, 10 hours a day, and a little rain some wind and flurries and time goes by. Having difficulty with the gear on the end of the distributor lining up with the oil pump, once I got everything in its proper place it did go together quite well. It was just as Sidom said, all the marks were there. I had not seen the 6 and 8 before you told me, the 8 was not real clear. The truck starts right up and idles good. I just hope the new gear is better than the old one. Thanks for the help, this is a great site.

Response From nickwarner

thanks for posting the fix, and glad your truck is back on the road

Response From Hammer Time

There are no timing marks because the timing is not adjustable at all. The distributor synchronizes the rotor and the Cam sensor and it requires a professional scan tool to get the distributor set correctly once removed.

Response From Hammer Time

That would be very unusual for that engine. I would first get a fuel pressure gauge and test the fuel pressure. This is a high pressure system and requires a minimum of 55 PSI to even run. The pumps fail quite often.

96 gmc Sierra

Showing 7 out of 7 Posts
Question From bigrich1356 on 96 gmc Sierra

I have a 96 gmc sierra 1500 2 wheel drive with a 5.0 vortec engine 160xxx. I bought it last spring with no problems, everything was running good, no check engine light or anything wrong, well the guy neglected to tell me the oil pump was no good and i blew the engine, so i put in a newer engine and now the check engine light is on with trouble codes (P0135, P0140, and P0141) the only o2 sensor i unhooked was the bank 2 sensor 1 b/c the wire runs behind the motor and i didn't want it to get pinched but its the bank one side where the codes are, i checked the wires and they look fine, the truck runs fine, but every once in awhile the check engine light will go off for a day our 2, any idea what might have happened in the week it say while changing out engines that would cause them codes to come up? And what should i do to fix it b/c my inspection is about to run out?

Response From Hammer Time

Have you tried clearing to codes to see if they all come back?

Response From bigrich1356

I cleared the codes twice but they come back within 5 miles

Response From Hammer Time

I would verify that these sensors are plugged in firmly. I doubt you have 2 bad heaters so check all your fuses. If they are OK, test for power and ground at the sensor at the 2 like colored wires.

Response From bigrich1356 Top Rated Answer

I unplugged all of then today to check to see other were dirty but they were all good, and i put em back together pretty snug... The only fuse i could find in the book is for the (heated o2) in the engine compartment but that was fine, should there be a fuse anywhere else?

Response From Hammer Time

You should use a test light to test every fuse in the car.

Response From bigrich1356

So it could be something stupid that has nothing to do with the o2 sensors?

Oil Pressure gauge

Showing 2 out of 5 Posts | Show 3 Hidden Posts
Question From jjlutz on Oil Pressure gauge

I have a 1988 GMC 1500 4WD with a 5.7 engine. When the engine starts up I have a little better than 30 lbs oil pressure. I plow with the truck, and after about 20 minutes, the pressure falls to a level that lights the "Check Gauges" light on the dash when it falls to an idle. Just today it would not come back up and turn out the light when engine speed was raised. I had just changed the oil before this started happening. There is plenty of oil in the pan, and the lifters don't seem to be starving for oil. The engine seems to be running well, but it is disconcerting to see that light on. Is it possible that the sending unit is bad, or is it more likely the oil pump?

Response From Hammer Time

I would first try changing the oil again and use a different brand this time. Some vehicles just don't like some brands of oil.
If the problem still persists, then your going to have to verify the pressure with a manual gauge to see if the sender is accurate. It might be even cheaper to just replace the sender to see if it helps.

Response From jjlutz

Thanks; Another issue may be that I put in 10-40 instead of 10-30 to try and boost the Oil Pressure. I live in Maine and it is COLD. I should try and go back to 10-30?

Response From Hammer Time

It won't be too serious with a truck that old but that would be a real problem on a later model.

Response From jjlutz Top Rated Answer

Thanks Hammer Time . . . . I pulled the sending unit off and hooked up a mechanical gauge and it blew the gauge to its highest mark. I put in a new sending unit in and it seems to be working fine. I'm glad it wasn't the oil pump. That would have been a big replacement job, especially with a foot of snow on the ground. Thanks again.