Well, I did the upgrade a few weeks ago. Seems to be working fine, although no real improvement in braking so to speak. Maybe this summer when I tow my boat I will benefit.

Few things to note. Number one, I had to trim my backing plate/dust shields on the corners for the calipers to bolt up. Secondly, I had to grind off a 1/4" of material off the front face of the caliper in order to fit my stock alloy wheels. Otherwise a bolt on.

88 4R, 350 V8, R150 5 speed Sold <...uot; />
97 4R, stock, daily driver
98 Sienna, kid and dog hauler, wife's ride