Just wanting to get a few questions answered to decide whether or not I want to get gears. I have a 4.6L V8 2wd Auto transmission with stock gears which is 3:55 right? I am looking for a little more pep.What would be a good size to upgrade to? How much will it affect my gas mileage? If anyone has a size suggestion where are you on rpms at 60 mph?
Thanks

 

no one on here has gears that they could give me some advice?

 

Depending on your tire size ... 4.11 would give you some more pep with stock tires and up to a 33'' tire, 4.56 for 35'' tire, As far as MPG usage depends on your driving style... you will burn a little more with the 4.11's... I like to be in the 2200 to 2600 RPM range at 60... My 4.56's with the 35''s does this fine in over drive...

 

i think the stock gears are 3.08

 

I would say 4.10's would be perfect for you.

 

I don't know if there is a "stock" gear ratio. I think 3:55 is more common that 3.08, however I have the 3.08 and its a dog. If you have a 3:55, then don't do less than a 4.10 other wise the difference you are looking for may not be there (i.e. 3.73).

 

There should be a little tag on the rearend that will tell you what gears you have...

Dennis