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Old 04-25-2022, 07:05 PM   #1
Nima
Blue 67
 
Join Date: Apr 2004
Location: Western WA
Posts: 1,178
Need help to ID this PS gear box

Hello:
I picked up this PS gear, pump, pitman arm and brackets long time ago (I am talking 10 years and more ago!) from local yard and I don't remember what model year chevy truck it was, 67-72 or next gen models. Based on what I have researched it has to be 1970s. I am about to finally convert to PS and I need a pitman arm and the nut which holds the pitman arm to the gear box. The nut on my current manual box seems to be the same size but it just doesn't start to thread on the shaft, so I am wondering if the nuts are different size.
The casting on the box is 7802644, and the numbers on the 4 bolt cap are 7812145 and 018 71.
Thanks for the help
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1953 GMC 3/4 ton: current project
1967 C20: 5.3 voretc with T5 conversion, 4 wheel 8 lug disc brake
1972 Nova: my 4 door sport sedan! 5.3 voretc + T5 conversion. drivable project, FUN!!
1979 Camaro Z28: 5.3 vortec conversion with build TH350: drivable project, Fun to drive
1992 Camaro RS convertible (Z28 clone): 5.3 conversion with build T5: on going project
2005 Silverado 2500, 4x4 Duramax, original owner
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