|Dimensions||20 × 12 × 12 in|
Includes JBS clutch mods, primary sheave resurface & ECU reflash.
Fits 2012 – 2013 T4 Models
JBS clutch mods lowers the starting ratio in high, low & reverse from a dead stop .. it gets the tires turning easier.
Fixes the reverse issue of not enough power & helps the entire range.
It lowers the cab noise because it shifts out earlier on top end.
ECU reflash removes the speed limiter & raises the RPM’s, it also raises the diff & reverse limiters. The stock ECU shuts down @ 50 MPH after the reflash you will see 60 MPH on level & 62-65 MPH on a downhill.
Customer must send in their stock OEM parts to be modified/reflashed.
131 Davis Ct.
Mount Hope, WV 25880
Please call with any questions!!
Clutch/Belt break in – run it easy for the first 4 or 5 miles to make sure the sheaves are clean before you punch it.