Anyone have any leads on a replacement upper control arm cross shaft for an 88? I'm in the middle of doing ball joints and noticed on the drivers side that the nuts on the end of the cross shaft were loose. Lubed them up with wd40 and gently tried to rotate them back and forth. The rear one behaved and let me tighten it up. Not so lucky on the front one, it broke the cross shaft flush with the end/outer side of the bushing. Can't seem to find any replacements. Checked Rodney's and the fierostore's web sites and they are not listed. There is a guy selling the left front arm on ebay. Probably would come with the shaft.

Anybody have any other leads or suggestions?


Thanks!

Brian

you could repair it? i would probably get it all apart and take it to a machine shop (or do it myself) and have a peice welded on and threads cut into it to replicate the end that is supposed to be there.

Carter,

Yea, might have to do that. I have full access to a machine shop and can weld.

About a year and a half ago there was an 88 at my local pullapart. Got lots of stuff off of it but didn't get these. They will definitely put these on my list though.

Thanks for the reply.

Brian

Rare Parts Control Arm Shaft Kit 17694

quote OUT OF STOCK. CALL 800-621-2005 FOR STATUS

https://www.rareparts.com/R...ONTROL-ARM-SHAFT-KIT

------------------
Original Owner of a Silver '88 GT
Under 'Production Refurbishment' @ 136k Miles

[This message has been edited by Vintage-Nut (edited 05-04-2025).]

quote Originally posted by BHall71: Carter, Yea, might have to do that. I have full access to a machine shop and can weld. About a year and a half ago there was an 88 at my local pullapart. Got lots of stuff off of it but didn't get these. They will definitely put these on my list though. Thanks for the reply. Brian

try that one on ebay first. most people arent pulling them out of the arms anyways

I know zero about 88's but has anyone ever tried to fit a shaft from another vehicle of that era? This one is listed for an S-10 and is $28.
https://shorturl.at/PFUIa

These are the vehicles it fits from Pontiac:

[This message has been edited by IMSA GT (edited 05-04-2025).]

I've gotten 88 suspension parts from Mike Valentine of The Fiero Factory.

quote Originally posted by Vintage-Nut: Rare Parts Control Arm Shaft Kit 17694 https://www.rareparts.com/R...ONTROL-ARM-SHAFT-KIT

Also "available" at autozone (out of stock but it is in their catalog).

I cant seem to find, but there is also a separate part number for JUST the control arm shaft without the bushings.

FYI - GM didn't get a part number to the shaft, and it came only in the arm assy......

Thanks for all the great info and suggestions! I'll either get that one on ebay or repair or fabricate my own.

Brian

Has anyone ever installed one of these shafts into an '88 control arm? If I remember right, you have to take care not to crumple the sheetmetal "ears" at each corner of the control arm.