As the title says, are all A-arms the same on 82-92 models, just wondering because I got one off an 84 to put on a 92. I'm assuming they are just wanna double check.

 

From what I know, And I could never confirm this because I never personally checks but I think the steering stops riveted onto the a-arms are slightly different posistioned between the 15" factory wheel cars and the 16" factory wheels cars. I put 16" factory IROC wheels on a factory 15" RS car and the wheels would rub until I welded a little more material onto the factory a-arm stops.

 

think A-arms from a 14 inch wheel car to a 15 inch wheel car would throw off the end links any?

 

No, That should all line up.

Sway bar links are always a little cockeyed. Best to install both sides just barely together first, making sure you have both sides attached before you start tightening either side.

Often also people use slightly shorter endlinks and suffer from this result also. Longer links help with better alingment, but too long of links will cause contact of the swaybar into the chassis during articulation of suspension function

 

According to the Parts and Illustration Catalog, Dean, you're correct, the two are different.
Example:

Stop, Lwr Cont Arm-RH (82-84) (85-87 Exc 16" Whl) (88-89 Exc Z28) (90-91 Exc 16" Whl).

Stop, Lwr Cont Arm-RH (85-87 W/16" Whl) (88-89 W/Z28) (90-91 W/16" Whl)

Moreover, the Bumpers are different as well:

Bumper, Lwr Cont Arm (1982-84) (1985-87 Exc FEZ) (1988-91 W/15" Whl) P/N 10068783

Bumper, Lwr Cont Arm (1985-87 W/FEZ) (1988-91 W/16" Whl) P/N 14089443

JamesC

 

well the passenger side lines up, but the drivers side is so far off the bumpstop on the a arm will hit the sway bar

 

Thank you James, I have never seen that confirmed.

 

Sound to me like you bent the swaybar

 

i tried another one it lines up the same

 

Can you try taking apart the connected side and starting by attaching this side first? see if that renders the same problem on the other side.

 

I've tried hooking each side up first, the drivers side always comes out having a bad angle on the endlink, this post will tell why I'm having the problem I've replaced most of the parts https://www.thirdgen.org/forums/susp...ot-lining.html

 

Since it was brought up I noticed this too. From the Global West site, they list different part numbers for the lower arm bushings with the cut off being mid year of 1983.

http://www.globalwest.net/1982-02_Ca...m_bushings.htm

 

The 82-83 ones have a smaller bushing. The are all the same bushings from then out.

 

Lets conclude the given facts-

'82- '83 1/2 A-arms: small ear bushings/15" wheel stops

'83 1/2-'92 A-arms: Large ear bushings...two types of stops/ a) 15" wheel stops, and b) 16" wheel stops

This concludes there are 3 types of factory A-arm options if one were to get something out of a salvage yard.

 

82-83 1/2 have a busing diamater of 1 5/8 "
83 1/2 92 Have bushing dia of 1.915" according to my notes from Global West.

 

ok thanks all

 

Thanks for the info! Was that on their website or something you have on hand? Just curious since I was looking on the website and didn't see anything specific like that.

 

Ok guys. Im desperate and I need help as in tonight because tommorrow (Thursday) Im going to hit the junk yard early in the morning. So my understanding is that the 16" (85-92) wheel has the large ear right? So then does the 92 RS have 16" wheels? In otherwords, Is my 86 IROC's front control arrns the same as the 92 RS's control arm?