The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Yet Another Power Steering Upgrade Question

Andy4639 · 02-12-2020, 10:06 AM

Well to answer your main question, no LWP & SWP pulleys will not work together at all. You need a complete set of which ever pump is used.

First thing is remove the ground strap it doesn't belong there and will need removing for the pump.
If your setup now has the crank & water pump pulleys installed then I would use the double PS pulley.
The 2 pumps you have are the correct pumps for these trucks. The round reservoir one is correct for the model year 68 but the square was used in the 70's. The double pulleys are found on most LWP setups.

02-12-2020, 10:06 AM	#3
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: Yet Another Power Steering Upgrade Question Well to answer your main question, no LWP & SWP pulleys will not work together at all. You need a complete set of which ever pump is used. First thing is remove the ground strap it doesn't belong there and will need removing for the pump. If your setup now has the crank & water pump pulleys installed then I would use the double PS pulley. The 2 pumps you have are the correct pumps for these trucks. The round reservoir one is correct for the model year 68 but the square was used in the 70's. The double pulleys are found on most LWP setups. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.