|GRAND CHEROKEE SRT8||2006-10 (WK1)||BJ-41 (44/44x32)|
|GRAND CHEROKEE SRT8||
|BJ-61 (40/40/40X32)||BJ-42 (28/32x30), Or BJ-43 (34/34x30) +
BJ-42 (28/32x30), Or BJ-43 (34/34x30) +
+ There are two different piston size of rear calipers for WK2. Please check your rear calipers to make sure you order the correct sizes.
*TrackHawk Front calipers are the same as SRT8 except with yellow color and longer legs for larger rotors (400 vs. SRT's 380mm).
Brake Bias Analysis:
|Model||Year||Front Caliper Piston Area (CM^2)||Rear Caliper Piston Area (CM^2)||Total Area||Front Ratio||Rear Ratio||Rotor Size (F/R)|
|Rear RB BBK#||2012+||75.4 (OE)||34.24 (RB4M)||109.64||69%||31%||400x36/390x30|
The above table indicates the newer SRT8 front 6 pot calipers set up requires a larger 4 pot calipers & rotors to keep the system in balance.
#This rear BBK is equipped with our RB4M3 calipers (32/34mm piston dia.) and comes with a larger rotors (390x30mm), and pad (PD968) and will make the rear brake works harder and thereby alleviate the brake stress on the front for a healthier, and more balanced brake system.
Learn how our "reduced" bias rear brake kit help Viper track driver solves OE's too much rear biased issue (opposite to Jeep/Durango front bias).