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Hard Tranny Shifts

899 views 0 replies 1 participant last post by  IH farm boy 
#1 ·
my truck sometimes shifts hard. doesnt matter if its cold or warm and i dont know what i should do first. maybe change tranny fluid or it might be the whole tranny going bad. idk what to start with. i also used my QS2 and reset my tranny but still didnt help
 
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