Items for Sale by Club Members & Friends > Wanted to Buy
C4 Power Steering Rack wanted.
sabre:
Saab is a furphy. The Saginaw logo looks like saab. The correct part used on most conversions is Saginaw 26004152. This rack was used on 92-96 Buick Century; 86-99 Buick Le Sabre and 92-93 Cadillac Deville.
A dead ringer foe the C4 rack but made for mounting on the rear of the cross member. Flip and mount forward and it works right.
Good luck getting one locally.
Vettech:
Thanks very much guys, as always a wealth of infomation.
Vettech:
Took the Bubble (Yaris) for service at Jensens Auto @ Mint today, whilst there I picked his brains to see if I bought that Vic based C4 rack if he would re-seal and service it. He said "what for", well I explained, I wanted to replace mine. Bulls#×^ - you cant just turn a LHD rack over 180° because its going the wrong way.
I already had his exploded diagram book that he sometimes quotes, I said "ok then we swap these pipes, to supply fluid to the opposite sides of the piston".
Well and good he said - what about the fact that the steering shaft is meshed to the rack, you turn right and the piston/fluid is trying to turn left.
Bugger I've re-confused myself, but no one on the forum pick me up on this, this means the rack on my car is not as I thought, original.
Ummmmm. Best I look to getting the existing one sorted / serviced and fitted betted than it is.
I would have thought as GM is smart (dont say it) a VB ~ VK Rack would be a Chev mirror image. Any ideas wellcome!??!?!??!
bfit:
I have one of each ill let you know
sabre:
--- Quote from: Vettech on October 05, 2017, 02:42:31 PM ---Took the Bubble (Yaris) for service at Jensens Auto @ Mint today, whilst there I picked his brains to see if I bought that Vic based C4 rack if he would re-seal and service it. He said "what for", well I explained, I wanted to replace mine. Bulls#×^ - you cant just turn a LHD rack over 180° because its going the wrong way.
I already had his exploded diagram book that he sometimes quotes, I said "ok then we swap these pipes, to supply fluid to the opposite sides of the piston".
Well and good he said - what about the fact that the steering shaft is meshed to the rack, you turn right and the piston/fluid is trying to turn left.
Bugger I've re-confused myself, but no one on the forum pick me up on this, this means the rack on my car is not as I thought, original.
Ummmmm. Best I look to getting the existing one sorted / serviced and fitted betted than it is.
I would have thought as GM is smart (dont say it) a VB ~ VK Rack would be a Chev mirror image. Any ideas wellcome!??!?!??!
--- End quote ---
Geez Douggie, time to rethink your title. :omg:
Your mechanic is totally right. A rack is just gears so flipping it would have you steering in reverse UNLESS you move the rack from behind to in front or in front to behind. That fixes the direction issue. That's why you need a rack designed for behind the front crossmember for a C4 which has it mounted in front.
With respect to just changing the pipes: What are you thinking! Power Steering works on a moog valve controlling hydraulic flow to assist in the direction your trying to turn. Changing the pipes will mean the hydraulic pressure would be resisting any change. I gave you the part numbers you need above. You can only lead a horse.
I think if you reread the above both Sirfixalot and I corrected your expectation that you had an original C4 rack. :grr:
Now about GM being smart. They are GMH used a local division of Borg Warner Gears to make Commodore racks and GM (USA) used their local provider (Saginaw Gear Division) to produce theirs. It would be nice if two separate global companies shared their designs to make it easy to copy but that would be like Ford and Holden sharing body panels so the Taiwan could make copies cheaper. Not gunna happen.
I did a Google search on the number I provided above and found a couple of suppliers in the US that do exchange racks. I suggest you just get one and bolt it in. Maybe fix some of the issues you listed (wrong bolts and mount problems) along the way.
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