In the flurry of the purchase, I forgot to ask what gear ratio I have. Where do I look to find what my truck has ??
Thanks guys for any help.

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It's a ratio, and unless it was ordered, you have 3.73's
It's on the window sticker.

 

or in the glove box (on my '03 anyway).

 

Not in the glove box on the 06's.

 

Raise the rear wheal turn it one revolution counting how many times the driveshaft turns. If it turns say 3 3/4 turns to one revolution of the rear wheel you would have 3.73

 

call the dealership ask for service depaartment read them your VIN #

 

Or you could tell us what transmission and what rpms your running at 70mph.

 

65mph at 2100 rpm is 4.10's...at least on a 2003 with a 6-speed.