CLASSIC SILVERADO TRANSMISSION JERKS W/ DIABLO TUNE

[silveradohero]

I HAVE A 07 CLASSIC SILVERADO CREW CAB 4X4. U7192 NEW VERSION AND I HAVE THE DIABLO TUNE WITH THE MOD ON MY TIRES(265/70/17), REAR END(3.73), MAX SPEED W/ECT (120), iNJECTOR SLOP (-5) FAN1 (190) FAN 2 (200) COLD AIR INTAKE(K&N) AND DUAL EXHAUST (MAGNAFLOW). W/ THE PRETUNE DIABLO TUNE THE TRANSMISSION JERKS WHEN SHIFTING SOMETIME NOT SO BAD AND SOMETIME WHEN STOMPING ON IT TO LIKE GET ON INTERSTATE SHIFTS LIKE CRAP. WHATS THE DEAL? WHNE I PUT IT ON FACTORY IT SHIFTS SO SMOOTH. IS THAT WHAT I GET WHEN I WANT PERFORMANCE. IF I MISSED ANY INFO LET ME KNOW. INSIGHT ANYONE. IS THAT HOW ITS GOIN TO BE THOUGH??

[06MonteSS]

got a GM tranny, or the Allison tranny?

[silveradohero]

GM, I BELIEVE ITS A 4L60E TO BE EXACT

[killerrf]

GM, I BELIEVE ITS A 4L60E TO BE EXACT

get a transgo 4l60e-hd2 shift kit with vette servo and sonnax 4th gear servo and then take out transmission adjustments in the pred then you have a tranny that shifts like its suppose to. crisp and quick at part throttle... but at wot its firm and fast.

i finished putting this in my '08 chev... shifts 100% better but still trying to rid of torque management. had the tcm reprogrammed to eliminate and readjust a few things.