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Discussion Starter · #1 ·
so im gonna get ready to order 4.10s in my car and i got a question?
sense my car is auto if i was to order that gear kit off AM with the speedo CAL well my car shift any different or will i have any shifting troubles?
 

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Discussion Starter · #2 ·
hmm?
 

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You will need to tune it after a 4.10 install because it will throw off the shift points and miscalculate mileage. You can either spring for the tuner, or just take it to a pro shop and have them do it for you. Your choice. But it really needs to be done.
 

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gotta get a tune/tuner, speed-cal's don't work on auto's.
 

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Discussion Starter · #6 ·
damn that sucks oh well time for a tune!!!
 
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