Tubular upper control arms Issue
I used these with my SPC uppers.
Not the same control arms but these might work better for you.
Energy Suspension 9-9121G Black Polyurethane Bump Stops
View attachment 1715154446
Way too short for upper bump stops. Maybe for lower bump stops, but that depends on your ride height. You’d have to be lifted compared to stock for those to make sense as uppers.
This is a stock upper bump stop, they’re taller than the stock lowers...
https://www.summitracing.com/parts/rnb-31053/overview
Bump stop height depends on ride height, and if you go poly you have to make the lowers shorter. The original lower rubber bump stops are shaped like wedges because they’re progressive, and were actually used as part of the suspension travel. Poly doesn’t give like that, so if you use poly bump stops you won’t want your suspension to bottom out as much as it did from the factory, because it’ll ride very harsh.
For example, with my car lowered and using 1.12” torsion bars, I use these for lowers
Energy Suspension Bump Stops 9.9132G
And these for uppers
Energy Suspension Bump Stops 9.9136G
The lowers are only 3/8” tall, compared to the stock lower bump stops which are 1-1/8”. And the uppers are 2” tall, compared to the stock ones which are 1-3/8” if I remember right. That recenters the suspension travel around my lowered ride height. That’s a little dramatic because I’m lowered about 2” from stock, but you have to keep things centered.
And it does depend on the UCA design too, mine work with my SPC adjustable arms but I also moved the bump stop over a little.
