gear help please
Thread Starter
Senior Member
Joined: Oct 2013
Posts: 316
Likes: 4
gear help please
ok i have spend a few hours looking and i am getting alot of mixed opinion ok i will cut to the chase i am planing to lift my truck and i am wanting to run 35s my rear end is a 8.8 gear 3.50 my truck is my daily driver and my drive to work is all highway at 70-75mph what is the best gear i need i will also tow a midsize boat during the summer i have seen people say the best gear for 35s are (3.55, 3.75, 4.10, 4.56, 4.88) i have seen all kind of combination can some one point me in the right direction i need to go in
Timber Baron
Joined: Apr 2015
Posts: 645
Likes: 77
From: Steamboat Springs
4.10 will give you a little more torque than your stock gears, adjusting for tire size. This will give you more power with the boat, and slightly higher rpm at highway speed. I don't think 3.73 will be enough of a change.
To put numbers on it:
Going from a 32" tire to a 35" tire is a 9.3% increase.
Going from your stock 3.55 to 3.73 will be a 5% decrease
Going from your stock 3.55 to 4.10 will be a 15% decrease.
Just to get back to stock feel, you need a 9.3% decrease on the gear ratio. To begin with, 3.55 gears are pretty tall for towing anything.
If your truck came with 3.73 gears from the factory(what my truck has with tow package), going to 4.10 would be a 9.9% decrease, which is very close to the 9.3% increase in tire size.
4.10, need I say it again.
To put numbers on it:
Going from a 32" tire to a 35" tire is a 9.3% increase.
Going from your stock 3.55 to 3.73 will be a 5% decrease
Going from your stock 3.55 to 4.10 will be a 15% decrease.
Just to get back to stock feel, you need a 9.3% decrease on the gear ratio. To begin with, 3.55 gears are pretty tall for towing anything.
If your truck came with 3.73 gears from the factory(what my truck has with tow package), going to 4.10 would be a 9.9% decrease, which is very close to the 9.3% increase in tire size.
4.10, need I say it again.
Thread Starter
Senior Member
Joined: Oct 2013
Posts: 316
Likes: 4
4.10 will give you a little more torque than your stock gears, adjusting for tire size. This will give you more power with the boat, and slightly higher rpm at highway speed. I don't think 3.73 will be enough of a change.
To put numbers on it:
Going from a 32" tire to a 35" tire is a 9.3% increase.
Going from your stock 3.55 to 3.73 will be a 5% decrease
Going from your stock 3.55 to 4.10 will be a 15% decrease.
Just to get back to stock feel, you need a 9.3% decrease on the gear ratio. To begin with, 3.55 gears are pretty tall for towing anything.
If your truck came with 3.73 gears from the factory(what my truck has with tow package), going to 4.10 would be a 9.9% decrease, which is very close to the 9.3% increase in tire size.
4.10, need I say it again.
To put numbers on it:
Going from a 32" tire to a 35" tire is a 9.3% increase.
Going from your stock 3.55 to 3.73 will be a 5% decrease
Going from your stock 3.55 to 4.10 will be a 15% decrease.
Just to get back to stock feel, you need a 9.3% decrease on the gear ratio. To begin with, 3.55 gears are pretty tall for towing anything.
If your truck came with 3.73 gears from the factory(what my truck has with tow package), going to 4.10 would be a 9.9% decrease, which is very close to the 9.3% increase in tire size.
4.10, need I say it again.
Thread Starter
Senior Member
Joined: Oct 2013
Posts: 316
Likes: 4
