GMT800 Power Steering Pump

[Black02Silverado]

Rockauto.com lists an AC Delco for RWD Crew Cab. It's somewhat bizarre how they list those pumps. 4WD and 2WD are the same pump on half ton trucks, but there are other factors.

Yeah, it's odd. I wanted to post the part number but without all of the little details, I had no way of knowing. Why can't there just be one design that's adequate for all 1500's? Seems like it'd be cheaper to have one design than 18.

All the more reason to make you go into the dealer for service.

 

[DV2000NJ]

Question:
Why are there different pumps for 2wd and 4wd?

I'm sure that 4wd is harder to move because of the added resistance of the 4wd components.

I'm guessing it's due to the fact that 2wd has rack and pinion steering, while 4wd still has the old recirculating ball steering box.

 

[M.Cueva]

Question:
Why are there different pumps for 2wd and 4wd?

I'm sure that 4wd is harder to move because of the added resistance of the 4wd components.

I'm guessing it's due to the fact that 2wd has rack and pinion steering, while 4wd still has the old recirculating ball steering box.

THAT, i didnt know. thought they were all converted to rack and pinion

 

[nubuilder]

Question:
Why are there different pumps for 2wd and 4wd?

I'm sure that 4wd is harder to move because of the added resistance of the 4wd components.

I'm guessing it's due to the fact that 2wd has rack and pinion steering, while 4wd still has the old recirculating ball steering box.

THAT, i didnt know. thought they were all converted to rack and pinion

I read that they stuck with the old style because the rack & pinion wasn't strong enough.

When did GM get away from using torsion bars on 2wd? They're still used on 4wd right?

 

[Bigredmariner]

Mike these pics are not gonna help you any, especially after reading all the other posts. But since I already snapped the pics here they are, extremely hard to get in there with a camera.

 

[Zembonez]

Question:
Why are there different pumps for 2wd and 4wd?

I'm sure that 4wd is harder to move because of the added resistance of the 4wd components.

I'm guessing it's due to the fact that 2wd has rack and pinion steering, while 4wd still has the old recirculating ball steering box.

Even so.... the 2WD and 4WD pump are listed as the same application on Rockauto. Since the pump just supplies the fluid under pressure, it should work for both systems.

Here is the pump. 1999 - 2006 Silverado.

http://www.autopartswarehouse.com/d...QQPower_Steering_PumpQQ19992006QQA120661.html

Fit note: 4WD, Crew Cab Pickup, 4WD, Without Luxury Edition Package (Y91), Crew Cab Pickup, RWD, Extended Cab Pickup, 4WD, Without Luxury Edition Package (Y91), Extended Cab Pickup, 4WD, Without Off Road Package (9G3), Without Sport Package (B4U), Extended Cab Pickup, 4WD, Without Sport Package (B4U), Without Luxury Edition Package (Y91), Without Off Road Package (9G3), Extended Cab Pickup, AWD, Without Luxury Edition Package (Y91), Extended Cab Pickup, AWD, Without Sport Package (B4U), Without Luxury Edition Package (Y91), Without Off Road Package (9G3), Extended Cab Pickup, RWD, Without High Output Package (B4V), Extended Cab Pickup, RWD, Without Spring Special (B2E), Without High Output Package (B4V), Extended Cab Pickup, RWD, RWD, Standard Cab Pickup

 

[M.Cueva]

Mike these pics are not gonna help you any, especially after reading all the other posts. But since I already snapped the pics here they are, extremely hard to get in there with a camera.

Looks exactly like my setup....

 

[ScottyBoy]

If you call the dealer with your VIN they can tell you the exact replacement Delco pump you need.

 

[M.Cueva]

If you call the dealer with your VIN they can tell you the exact replacement Delco pump you need.

I did, they said my truck was a 4WD.

 

[drperry]

The pump itself should be the same.

The only differences should be between having hydroboost and not having it.
And apparently the hybrids get a slightly different one as well... Other than those two things, though, they should be the same.