Hey guys,

I'm trying to piece together all the parts my daughter needs to rebuild the front suspension... about the only major thing left for her to do on her 85 Fiero 2m4 SE. I've got everything, but realized that I probably don't want to re-use the castlated nut, the washer, etc... or the dust cap. For some reason, I can't find these anywhere online. They're not on Rock Auto, or on Amazon. I see dust caps, but don't know if they fit the Fiero. Fiero Store doesn't have them either.

Anyone know where I can get the following:

- New Castle Nut
- New Front spindle washer
- Bearing dust cap

(x2 for everything)

thanks!!!

quote Originally posted by 82-T/A [At Work]: Hey guys, I'm trying to piece together all the parts my daughter needs to rebuild the front suspension... about the only major thing left for her to do on her 85 Fiero 2m4 SE. I've got everything, but realized that I probably don't want to re-use the castlated nut, the washer, etc... or the dust cap. For some reason, I can't find these anywhere online. They're not on Rock Auto, or on Amazon. I see dust caps, but don't know if they fit the Fiero. Fiero Store doesn't have them either. Anyone know where I can get the following: - New Castle Nut - New Front spindle washer - Bearing dust cap (x2 for everything) thanks!!!

gm parts giant says pretty much any fwd from that era would work. i would measure the dust cap and find a similar one and see if you can find what it came off to test fit. my guess is a 2wd s10 may fit but im not 100% sure since they scrubbed their parts diagram this year apparently and the part numbers are downright meaningless now since somehow a 1930s ford uses those bearings....yeah right.
junkyard would be best friend or dorman parts should have one? whats oriellys interchange say for the bearing?

Why would you not want to reuse those parts?

They are probably better quality from a metalurgical than anything your going to find that's been made recently.
They don't wear out.....

+2

That nut doesn't get tightened to any crazy high torque anyway, unlike the one on the rear wheels which IS supposed to be quite tight and is supposed to not be re-used.

To be completely honest, this Fiero was in rough shape... and I can usually find replacement parts on Rock Auto that are new old stock USA made parts at 1/4th the price on closeout. I prefer to use newer parts when replacing items that typically take some wear. I'm not seeing any dust caps on Rock Auto though... and definitely don't want to reuse that.

Thanks!


EDIT: I ordered new dust caps off Amazon for a 6000 STE. I'm assuming it'll be the same.

[This message has been edited by 82-T/A [At Work] (edited 11-30-2025).]

this is what i used.someone on a fiero forum recommended them.they are a tight fit. https://www.amazon.com/Dorm..._product_top?ie=UTF8

I bought a vibratory bowl from Harbor Freight to clean up mechanically serviceable but ugly parts. It still doesn't restore the plating though, which is a problem with reusing old hardware.

So far, I tried the green plastic resin media, but it hasn't done miracles on old hardware (crusty bolts that got hot in my turbo).

Next, I will be trying the ceramic media.

quote Originally posted by pmbrunelle: I bought a vibratory bowl from Harbor Freight to clean up mechanically serviceable but ugly parts. It still doesn't restore the plating though, which is a problem with reusing old hardware. So far, I tried the green plastic resin media, but it hasn't done miracles on old hardware (crusty bolts that got hot in my turbo). Next, I will be trying the ceramic media.

I've used that too... (in an HF rock tumbler with the green pyramids). I've had the same results as you. It's not horrible, but it knocks off some of the rust. I've found the only thing that works is a wire brush attachment on a power drill with the bolt carefully in a vice with a rag so it doesn't damage the threads.

Thanks!