Attention: TDR Forum Junkies 
rbattelle
TDR MEMBER
Tried the fronts tonight - they fit.
2003 3500 SRW QC with FACTORY aluminum wheels (not the polished wheels), original rotors.
First of all, I don't recall anyone pointing out that you should remove the rotor retaining rings prior to installing the Centramatics. Those little rings (there are 4 of them per wheel) get in the way.
Although it's very hard to tell, it appears there's around 0. 025" - 0. 030" clearance between the Centramatic and the caliper adaptor with the wheel installed and the lug nuts torqued to ~133 ft*lb. I checked by trying to slide a 0. 035" diameter MIG welding electrode between the adaptor and the Centramatic. It cleared everywhere except for a little bit of binding on the passenger side in one spot where the casting mold line on the adaptor is particularly thick. I installed the Centramatic on that wheel, torqued the lug nuts, rotated the wheel many times trying to listen for rubbing, then removed the wheel and the balancer to see if there were any marks from the caliper on the backside - there were none.
Drove home on the highway up to 65 mph. I didn't notice any improvement in vibration, but I didn't really have any vibrations to speak of prior to installing the balancers.
For those who asked what color these are - they're unfinished aluminum. In my opinion, they match the factory unpolished aluminum wheels perfectly.
My only "complaint" is that the tolerance on the locations for the stud holes on the balancer are VERY TIGHT. I had to keep indexing them over by 1 position until I found a position that allowed them to slip on relatively easy. Would've been nice if the holes were a few thousandths larger diameter.
If you try these and have clearance issues with the caliper adaptor, don't be shy about grinding some of the adaptor away.
-Ryan
2003 3500 SRW QC with FACTORY aluminum wheels (not the polished wheels), original rotors.
First of all, I don't recall anyone pointing out that you should remove the rotor retaining rings prior to installing the Centramatics. Those little rings (there are 4 of them per wheel) get in the way.
Although it's very hard to tell, it appears there's around 0. 025" - 0. 030" clearance between the Centramatic and the caliper adaptor with the wheel installed and the lug nuts torqued to ~133 ft*lb. I checked by trying to slide a 0. 035" diameter MIG welding electrode between the adaptor and the Centramatic. It cleared everywhere except for a little bit of binding on the passenger side in one spot where the casting mold line on the adaptor is particularly thick. I installed the Centramatic on that wheel, torqued the lug nuts, rotated the wheel many times trying to listen for rubbing, then removed the wheel and the balancer to see if there were any marks from the caliper on the backside - there were none.
Drove home on the highway up to 65 mph. I didn't notice any improvement in vibration, but I didn't really have any vibrations to speak of prior to installing the balancers.
For those who asked what color these are - they're unfinished aluminum. In my opinion, they match the factory unpolished aluminum wheels perfectly.
My only "complaint" is that the tolerance on the locations for the stud holes on the balancer are VERY TIGHT. I had to keep indexing them over by 1 position until I found a position that allowed them to slip on relatively easy. Would've been nice if the holes were a few thousandths larger diameter.
If you try these and have clearance issues with the caliper adaptor, don't be shy about grinding some of the adaptor away.
-Ryan
