Install pix of MKIVtt rear brakes on a MKIII

(125K) 1024 x 768	a shot of the stock brakes	(120K) 1024 x 768	another shot of the stock brakes
(91K) 1024 x 768	MKIVtt vs. MKIII rear rotor	(166K) 1024 x 768	heat/dust shield removed
(142K) 1024 x 768	heat/dust shield	(128K) 1024 x 768	MKIII vs. MKIV caliper fastening bolt
(164K) 1024 x 768	the MKIV rotor fits right on	(209K) 1024 x 768	there is a 1mm or so gap around the hub. this will need to be shimmed
(158K) 1024 x 768	depending on what bolts you get, you may need to clearance the mating surface	(197K) 768 x 1024	upper hole clearanced
(182K) 768 x 1024	lower hole clearanced	(169K) 1024 x 1365	backside of the caliper. gotta love the sweet 2 piston design w/easy pull pads. you can sort of see the excess pad sitting above the rotor.
(166K) 768 x 1024	top view of the whole assembly	(180K) 1024 x 768	one of the caveats-the caliper sits farther out than on the MKIV. because of this, the pads are about 1/8" off the rotor. you can see the gap in swept area here.
(215K) 768 x 1024	the stock MKIII lines bolt right up (i use custom SS lines)	(173K) 768 x 1024	the finished product

• What you need:
  • MKIVtt rear calipers (the mounting bracket is part of the caliper)
  • MKIVtt rear pads
  • MKIVtt rear rotor
  • longer caliper bolts- M12x1.25 35mm long should work fine
  • some way of shimming the rotor hub 1mm or so
• You need to drill out the knuckle mounting holes to accomdate the larger MKIV caliper bolts.
• The heat/dust shield needs to be removed to accomdate the larger MKIV rotor.
• The MKIII brake lines bolt right up.
• The MKIV caliper uses a larger bleeder screw, I'll post size later.
• The MKIII parking brake should work, though i haven't verefied it.
• Caveats:
  • The rotor hub has about 1mm of space all around it. This may cause issues w/noise and/or the parking brake drum.
  • The caliper sits about 1/8" off the rotor, so the pad overhangs (see pix above). This shouldn't be an issue, just the pads will wear funny.
  • This rear brake setup is NOT compatible w/stock sized rims. You'll need 17s or a larger 16" rim.

Last update 4/3/03

Comments? Questions? Concerns? drop me a line.