Questions & Answers for: GMC Yukon Denali reaction

no reverse and shifts from low to 3rd only after tacking out and letting off gas The Reaction shell in your 4L60E has failed. The reaction shell is responsible for reverse, 2nd and 4th. It is a very ...

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...stock rebuild, the following parts installled...you want a hardened input shaft, The Beast sun gear reaction shell, the 29-element Borg-Warner input sprag, the Alto master rebuild kit with all molded ...

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Question about 1999 Yukon Denali

1 Answer

1999 yukon denali transmision will not go in reverase The reaction sun shell inside the transmission has cracked. They pretty much all have that problem from 1996-1999. It is be repairable if cash is ...

...plates or other suspension problems consider this to see if it fits when you accelerate the reaction of the diff is to roll upwards as the wheels have traction but when under brakes ( ...

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