PS pump for '75 350

I have a 1975 350 v8 with a power steering pump bracket from a 69 Skylark [pump and bracket purchased on this forum]. I have the old PS pump but am assuming it has probably seen its better days. My power steering gear is from an '87 Chevy S10. I need a pump that will fit my bracket [and hopefully power the gear from the S10] as the universal pump I recently bought has only one stud on the back side and the Buick bracket needs two. Hope this isn't confusing. Everything is sitting on and in an S10 frame. I rebuilt the engine and TH400 transmission last year and am ready for a/c, alternator, and PS pump and brackets. I poked around online and didn't see what is needed but probably don't know where to look or go. Any help would surely be appreciated.

Lane

 

The 67-70 power steering pump and brackets will not match the later pulley's .unless you change all the pulley's from a 67 to 70 system.Also you might need a short water pump.Bruno.

 

The S10 box will have O-ring fittings and not a flare. You'll either need a later pump with O-ring fittings or have a hose made. The pumps are all Saginaws. Ive heard its possible to switch fittings on the pump to accommodate either style fitting. I can't confirm that though. I'd imagine you could change the studs around as needed.

 

get s10 hose and flare the end into pump using the skylark threaded fittings

 

Thanks to each of you for all of this. I have been told that the saginaw gears are very similar and probably interchangeable with pumps and that fittings for each will change. I will find someone locally who can create new hoses and fittings.

 

Bruno, I think you are right ...... the PS pump bracket will not fit the holes in the block [69 bracket is about 3 1/4 center to center and the 75 350 v8 holes are about 3 1/2 center to center - I was so sure they were all the same. I figured out how to make the new pump I bought work but the bracket won't work. FYI - I have a long water pump. Will look in 'parts wanted' for a later one. Thanks for the heads up ........ lane

 

All 340- 350/400/430/455/231v6. Have same bolt pattern on head for brackets.

 

Andy, that is what I thought ........ mine is off by about 3/16 of an inch ............ the seller told me it was from a 69 skylark ......... what could I be doing wrong?

 

Post a picture of what you have and how you line it up. You should have an aluminum bracket that bolts to head, and 2 stamped steel brackets that sandwich the pump to that.

 

Andy, I don't have the aluminum bracket that bolts to the head. I have the stamped steel brackets that sandwich the pump. So that's where I am off. Don't have any visual references either. When I bought this vehicle and its' Buick engine and matching tranny all the stuff that bolts to the head and block were gone so I really didn't know [and still don't] what I was doing. Am grateful for direction on this forum to have found Longhorn SS who makes an alternator and a/c bracket to accommodate a Sanden compressor. That bracket is on its way. Anyhow, the aluminum bracket for the power steering pump is apparently what I don't have.

thanks,
lane

 

Thank you Larry for that photo ......... no wonder I wasn't able to get everything to line up .............. now to find an aluminum piece