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I'm hoping someone here can give me advice on a hydraulic rack and pinion unit. First off, it's a very rare (one of maybe three) power rack from a 1988 Pontiac Fiero. All 1988's came with power steering, but the factory recalled them and replaced them with manual units. A very few slipped through and I found one in a junked car in Michigan. My question is about corrosion on the rack shaft. Both ends under the boots (bellows) have surface rust. Is that area critical to sealing the unit?. Sadly, no info seems to be around any more for these. Any insight into how critical the finish needs to be at this location? The shaft just inside the housing is perfect.
for being so rare I would contact the rack experts at Turn One
Thanks for the response. Once I stopped thinking of this as a "power steering" problem and approached it as a hydraulic piston repair, a wealth of options appeared. Yes, regrind and/or rechrome but also several epoxy fillers formulated just for this purpose. After the first of the year I'll pull it apart for a better look.
Thanks for the response. Once I stopped thinking of this as a "power steering" problem and approached it as a hydraulic piston repair, a wealth of options appeared. Yes, regrind and/or rechrome but also several epoxy fillers formulated just for this purpose. After the first of the year I'll pull it apart for a better look.
Do not use an epoxy filler and as said in previous post, call Turn One. If the rusted portion of the rod does not retract past the wiper seal you have nothing to worry about and everything will be fine.
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First post, looking for rack and pinion advice 
