Hi all,
I have ripped the front end of my 86 all apart.
I was able to get the control arm bushing's out , pain in the butt but i won.
My issue is i have ordered a set or replacements (front lower ones) they are a .100 larger then the hole on the control arm.
I tried thinking they may squish in but i am just starting to bend the control arm.
so ordered a different set (Movitech and TRW) again same issue.
If anyone has replaced theirs can you tell me what you used?
as it sits the metal sleeve on the bushing is larger then the opening
Thank you for any help
Russ

Poly or rubber?

Rubber.
If i would have known i could have kept the sleeves in i would have and used poly

Rubber bushings already have the steel sleeve on them, correct?

Yes that’s correct
My control arms cleaned out measure 1.550
All
The bushings I’ve bought measure 1.650
I’m frustrated because there is zero chance this could press in
This is the second set I’ve bought and researcher other brands they seem to be all around the 1.60 OD

Have you measured both the inner and outer holes on each leg of the control arm?

Replaced all my 85 GT bushings years ago , cold press out/in. Bought all bushings Rock Auto. Have you looked there? Seems they were GM common, but not sure.

Hi Guys thanks for the responses, I was tier up this weekend.
For the front the Rock auto only has the Delphi listed and the description lists is as 1.60 measurement
As per the earlier question the inner diameter is actually a bit bigger by about .050
I do remember them being pressed from the outside in. At this point i would be happy to have ones that i could fit in.
When you replaced yours last year any idea on the brand you used?

Thanks guys
I will sort this out

Press-In with Backup Spacers:
Installing Rubber Bushings
https://www.fiero.nl/forum/Forum2/HTML/146849.html

Found my dead sea scrolls from 2010. Here are some pn,s FWIW. FRONT UPPER Moog k6170 FRONT LOWER Moog k 6163 REAR LOWER Moog k6271 and Raybestos 5651078. Did not find dimensions. Use a press , debur lubricate, A little heat / cold may help. I think I used forcing screws on some. Did make a world of difference. Some thru-bolts had worn and were sloppy. I wrapped them in shim stock.

Control Arm Bushing Size

quote My control arms cleaned out measure 1.550 {I.D.} The bushings I’ve bought measure 1.650 {O.D.}

FYI - Pontiac models are primarily dimensioned in the metric system.

O'Reilly shows the outer diameters...39mm, 40mm or 41mm
https://www.oreillyauto.com...r-1986-pontiac-fiero

39mm = 1.535-inch
40mm = 1.574-inch
41mm = 1.614-inch

[This message has been edited by Vintage-Nut (edited 10-28-2025).]

Ok That helps with the O'Rielly parts.
I will look more in to that.
The Moog MK6163 have been discontinued i have been on the search for them everywhere

Hi all,
I just wanted to update this and say third time is the charm.
I ordered Delphi Bushing's and they fit and now i have them installed.

The front springs are a huge pain that i have yet to get in but i will keep working at it
Thanks everyone for the help
Russ