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6DoF · 01-15-2019, 07:35 AM

Total piston area:
Stock D52 ----- 6.78
front wilwood -- 6.28
Rear wilwood -- 2.46
Cadillac ('76 -'78) Eldorado rear E-brake Calipers -- 4.55

the rear wilwood are sized for a corvette on the track, a place you NEVER want the rear to lock up, and would be paired with huge fronts brakes. tried em on the TJ, they are NOT enough for a big-tire truck. the stock d52 vs the front wilwood looks close, even backwards by a little, but all reviews say the better force distribution of the dual piston wilwood will stop better than a stock slightly larger single. also less fade on the track with the AL, but not sure the added cost is worth it for a jeep.

the one thing i have never tried, and would love to, is the caddy rears. they are 2x the stock gm, but still half the wilwood in cost. but also usually sold out and hard to find. having run the rear wilwood with the prop valve all in, and the front gm on the rear with the prop vavle all the way out ... the caddy sizing should be cherry.

another thing to help proportion better is a smaller rotor in the back. i'd have to go back and dig for info, but pretty sure i found different Dia with the same hat/thickness. might be like gm vs dodge? if doing a weld-on mount, easy to change the running Dia of the caliper to match.

again though, matching f/r cheap stock stuff is great and should be a huge upgrade for ya. but if someone pulls out on ya and you MASH the brakes ... expect the rear to lock before the front.

01-15-2019, 07:35 AM	#3
6DoF AKA: jeepnski Join Date: Sep 2002 Location: Pittsburgh, PA Posts: 17,128	Total piston area: Stock D52 ----- 6.78 front wilwood -- 6.28 Rear wilwood -- 2.46 Cadillac ('76 -'78) Eldorado rear E-brake Calipers -- 4.55 the rear wilwood are sized for a corvette on the track, a place you NEVER want the rear to lock up, and would be paired with huge fronts brakes. tried em on the TJ, they are NOT enough for a big-tire truck. the stock d52 vs the front wilwood looks close, even backwards by a little, but all reviews say the better force distribution of the dual piston wilwood will stop better than a stock slightly larger single. also less fade on the track with the AL, but not sure the added cost is worth it for a jeep. the one thing i have never tried, and would love to, is the caddy rears. they are 2x the stock gm, but still half the wilwood in cost. but also usually sold out and hard to find. having run the rear wilwood with the prop valve all in, and the front gm on the rear with the prop vavle all the way out ... the caddy sizing should be cherry. another thing to help proportion better is a smaller rotor in the back. i'd have to go back and dig for info, but pretty sure i found different Dia with the same hat/thickness. might be like gm vs dodge? if doing a weld-on mount, easy to change the running Dia of the caliper to match. again though, matching f/r cheap stock stuff is great and should be a huge upgrade for ya. but if someone pulls out on ya and you MASH the brakes ... expect the rear to lock before the front. Last edited by 6DoF; 01-15-2019 at 07:43 AM.