power steering part number???

Seeker1056 · DOURO, ONT

power steering part number???

58Chev · ETOBICOKE, ONT

I just search for 1970 Buick Wildcat as I know that came with a press fit but even RockAuto has bolt on replacement pumps.

Even Cardone shows it as a bolt on.

Maybe they no longer repop a press on type??

I know the one I bought from Cardone for my 70 block was also a bolt on type.

Bob T · BRANTFORD, ONT

'John Stuart' in Stony Creek rebuilds power steering pumps.

2drpost · KETTLEBY, ONT

'75 was the 1st year GM went to press on PS pulleys, early/mid '80s they went to metric thread pump fittings

427CARL · CLINTON, ONT

like this ??

http://www.ebay.com/itm/GM-Power-Steering-Pump-With-Pulley-/171734982606

slim · DUNDAS, ONT

double pulley was for AIR . part #s...https://books.google.ca/books?id=CcK9tuyUC7YC&pg=PA81&lpg=PA81&dq=1971+chevelle+power+steering+pump&source=bl&ots=efmXGl0qV3&sig=Pw2FRKRKu6HctF92LU_l7-urHqA&hl=en&sa=X&ei=X4UXVeDhJIGINuaqgYgF&ved=0CCgQ6AEwADgK#v=onepage&q=1971%20chevelle%20power%20steering%20pump&f=false

looks like year one and a few others carry the pump and pulley but without knowing what your is for sure....?

Seeker1056 · DOURO, ONT

2drpost - I am not sure that's true - I have bookmarked two used Ebay units for 1971, and have my own that would suggest GM had some units as press on back at least to 1971
427 carl - almost exactly like that
slim - awesome info - I bookmarked the site

anyone know what a variable ratio pump as described in Slims link is - never heard of one before?

so - all else failing - does anyone know if the pump dimensions and mounting bosses are the same from year to year? ie shaft length, boss locations etc - so I might just retro fit a 75 pump to my car. Only differences I can see is the return line exits in different positions from year to year and model to model - any of which would appear to work on my car with a little tweaking or I could even swap my housing over if I repaired it

-- Edited by Seeker1056 on Sunday 29th of March 2015 06:43:56 AM

studeshaker · BUCKHORN, ONT

a hollander's interchange manual is a great thing to have. it takes the guess work out of parts inter-changability. i have one for my corvette and i will be ordering one for my chevelle.

58Chev · ETOBICOKE, ONT

I have several pumps with res. The mounting bosses are all in the same location, as far as I could tell the shaft looks to be the same length.
It's just the placement of the low pressure line inlet that is different.

Seeker1056 · DOURO, ONT

well - I got the pump off- what a cobbled mess - missing bolts - made bolts etc

so it is a metric pump - says so right on the side of it - no part number though, and the housing is seized onto the pump - couldn't even drive it off

so now to figure out what pump might fit it - 70s C10 half ton is looking good

wish me luck - and thanks for the help

2drpost · KETTLEBY, ONT

GM parts book shows '75 as 1st year press on pulley part numbers wink

2drpost · KETTLEBY, ONT

58Chev wrote:
I have several pumps with res. The mounting bosses are all in the same location, as far as I could tell the shaft looks to be the same length.
It's just the placement of the low pressure line inlet that is different.

this is correct, the only differences being, bolt on/press on pulley, metric bolt and fitting threads and different return line placement/angles

-- Edited by 2drpost on Sunday 29th of March 2015 11:09:54 AM

Seeker1056 · DOURO, ONT

thanks 2drpost

slim · DUNDAS, ONT

If you go to rock auto look between 1987- to 1991 pickups . they will be metric port , press on pulley .so you just need the tank return were you want it.

https://www.rockauto.com/catalog/raframecatalog.php?make=CHEVROLET

one groove press-fit pulley--------------93430150

two groove press-fit pulley---------------14084343