I did the "Big Brake" mod to my '90 Troop with transplanted 3.4 V6, and the later-model calipers fit my 15" Snowflakes.

The calipers do come quite close, but they don't rub. And if you did happen to have any issues at all, it's nothing that a set of 1/4" aluminum wheel spacers wouldn't fix.

I heartily recommend the brake upgrade, it's a nice improvement in stopping power. And for anyone who already needs to do a brake job, it's a good excuse to get on with it!

Cheers & Merry Christmas..........ed

'90 Troop 3.4 LS
'89 Troop RS (Has Valve Issues, needs Counseling)
HI, I'm Ed and I'm a Trooper-holic!
Keep On Troopin'......