Im intersted to know what gears you got and what effects it has had on towing/gas milage.

Im at a crossroad between 33s and 35s. I know the 3:55s would have to go, but Im reluctent to mess with a good thing considering how well my truck tows now and is actually ok on gas doing so.

 

I still have the stock 3.55's with 35's. I didn't loose much power that I can tell during normal driving, still has good pick up. I also tow a 20' fishing boat that weights about 3000 lbs or a little more. I tow pretty good even when towing it at 60 up a ~15 degree incline(it does stay in 2nd). It will stay in drive untill a decent incline. I can't compare the towing to stock because I didn't tow until after the lift. I also saw about a 2 MPG decrease, but I can't be to accurate because of the traffic on the Island.

 

i dont have 35's, but do have 33's running 3.73ls i can spin my mt's if its wet, tows fine, did see a 1-2mpg decrease in gas...

 

Wheres your RPM range in normal towing at highway speed?

 

Normal driving at 60 around 1400rpm
towing at 60 around 1800 to 2000rpm (i think) it has been a feww weeks since i towed.