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1955.2 Chevy 3600 power steering options
#1391109 Sun Jan 03 2021 07:56 PM
Joined: Feb 2017
Posts: 5
New Guy
I have an original 1955.2 Chevy 3600. I am wanting to add power steering and have not come across a good option for doing it without lots of fabrication. Any suggestions from anyone would be helpful. I am not considering upgrading my engine unless I went all in and added 4x4.

Re: 1955.2 Chevy 3600 power steering options
mcwinery #1391128 Sun Jan 03 2021 09:23 PM
Joined: Jun 2011
Posts: 4,002

Does your existing box go through the left frame rail to the pitman arm, then forward to a J shaped steering arm attached to the left front wheel with the tie rod behind the axle?

If so, there is a 400 series box recently available that is made to fit that application using everything from drag link forward. Box has a gold irridate plate with many flathead bolts for attaching to truck frame. Look on E-bay.

Other options include moving the box in front of the axle, using the same drag link, might need to adjust length, if the tie rod is in front of the axle with crosswise drag link, get a GM Saginaw box and move the pitman arm to the crosswise position. This last paragraph applies to all trucks, not just GM

This is the CPP unit mentioned below.


Last edited by EdPruss; Mon Jan 04 2021 01:58 PM.

'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
Re: 1955.2 Chevy 3600 power steering options
mcwinery #1391132 Sun Jan 03 2021 09:25 PM
Joined: Mar 2007
Posts: 1,073
Crusty Old Sarge
Classic Performance Products (CPP) has a steering box that mounts in the stock location and uses the factory column. You would still need to add a power steering pump to your engine.


Come,Bleed or Blister somethings got to give!!!
59' Apache 31, 327 V8, Muncie M20 4 Speed, GM 10 Bolt Rear... long term project (30 years and counting)
Re: 1955.2 Chevy 3600 power steering options
mcwinery #1391210 Mon Jan 04 2021 03:52 AM
Joined: Apr 2016
Posts: 622
I went with EPAS (electric ) P/S. You just cut a chunk out of the original column, place it inline under the dash and run a power wire. It works without the engine running just like my electric A/C. It has adjustable gain. If it fails it just goes back to normal. Really cleans up the engine compartment. No hoses, pumps or pulleys and original steering box. You could install it with a hacksaw drill and file.

Last edited by mick53; Mon Jan 04 2021 03:55 AM.

Old enough to know better, too young to resist.

Moderated by  KCMongo 

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