bolt patterns

[Atl530i]

Whats up?

 

Just a simple question, whats the bolt pattern on 1990 Grand Prixs? Thanks.

[DiscoStudd]

5 X 115mm

[Prospeeder]

http://www.w-body.com/forum/viewtopic.php?t=31174

 

Try the FAQ for simple things

[Dannymik]

5 X 115mm

 

thats what is stock and preferred. FYI, you can get away with 5 x 114.3(4.5) with hubcentric rings

[Justin]

You can "get away with" just 5X4.5 as well, the rings are nice but I've honestly never met anyone that actually uses them.

[GnatGoSplat]

5x4.5 = 5x114.3mm

 

My wheels came with plastic rings and they don't work worth a crap.

[Dannymik]

5x4.5 = 5x114.3mm

 

My wheels came with plastic rings and they don't work worth a crap.

 

they sell the hubcentric rings for the Eagle wheels over on the grand prix store off of clubgp...$20 for the set since there specifically for that brand of wheels. I took a chance and saved the $$$.

[GnatGoSplat]

Well, the GPStore hubcentric rings are just plastic so all they're good for is centering the wheel. You can center them just fine by torquing in the proper pattern using progressive torquing. I torque them all 30-60-90-100. The plastic rings are useless for removing the load weight off the lugs, they'd have to be aluminum or steel to work for that.

[Dannymik]

Well, the GPStore hubcentric rings are just plastic so all they're good for is centering the wheel. You can center them just fine by torquing in the proper pattern using progressive torquing. I torque them all 30-60-90-100. The plastic rings are useless for removing the load weight off the lugs, they'd have to be aluminum or steel to work for that.

 

I had a bit of wobble/vibration after the garage mounted my 185's, but I fixed that once I got home. I used my 4 way and went every other lug which help center the wheel...all is ok now.