No Bottom End In 4.8 With 33 Inch Tires

[jonathangallant]

after putting on my leveling kit and 33 inch tires my 4.8 just doesnt have what it did before any ideas

[levigarrett]

Gears? what did you think was going to happen?

 

Gonna have to regear.

[dirtfan21]

Time for a Black Bear tune!

[jonathangallant]

im new at all this what would u suggest for new gears

i got some money just not the smarts lol

[jonathangallant]

Time for a Black Bear tune!

i just ordered a black bear tune were u able to notice a very big diffrence

[wtbrowne]

Sounds like you should have done more homework before buying the tires. Here is a link that may help you understand how larger tires affect the performance of your truck.

 

http://www.ehow.com/about_6591408_tire-siz...gear-ratio.html

[Knowklew]

Anytime you upsize your tires and dont regear, you are making the gear taller....so either you need more power, or you need to regear.

 

With my 6.2 and 3.73 gear I am not worried about running a 33'' or even a 35'' tire. However, if i had a 4.8 I would not have even thought about upsizing without doing a regear.

 

Remember if you regear the rear, you have to match the gears with the front...

[jonathangallant]

Anytime you upsize your tires and dont regear, you are making the gear taller....so either you need more power, or you need to regear.

 

With my 6.2 and 3.73 gear I am not worried about running a 33'' or even a 35'' tire. However, if i had a 4.8 I would not have even thought about upsizing without doing a regear.

 

Remember if you regear the rear, you have to match the gears with the front...

thanks alot like i siad im new at this everything takes time lol

[dirtfan21]

Time for a Black Bear tune!

i just ordered a black bear tune were u able to notice a very big diffrence

 

 

 

Truck was night and day difference. Throttle response is way better, shift points and shift firmness are on point, and the truck just feels free. The best example I can give is stock felt like I had a open landscape trailer with a mower on it behind me, tuned I feel like it fell off and I'm running away from it.

[jrrod2004]

We want pics

[zach1990]

fixing to buy new tires myself. how do yall think a 4.8/3:73 combo would hold up to 285/75/16? thats the engine and gears i have currently....

[KMGZ400]

fixing to buy new tires myself. how do yall think a 4.8/3:73 combo would hold up to 285/75/16? thats the engine and gears i have currently....

 

 

the OP has an 05 so he most likely has less then a 3.73 in his truck

 

 

 

 

 

your truck should be able to handle 285's no problem since you have 3.73

[zach1990]

fixing to buy new tires myself. how do yall think a 4.8/3:73 combo would hold up to 285/75/16? thats the engine and gears i have currently....

 

 

the OP has an 05 so he most likely has less then a 3.73 in his truck

 

 

 

 

 

your truck should be able to handle 285's no problem since you have 3.73

 

 

just what i wanted to hear. my 4.8 has been a very reliable motor and done everything i ever asked of it but the OP kinda made me question that tire choice...

[pm26]

When you put larger diameter wheels/tires on your truck, the reduction in torque at the rear wheels is directly proportional to increase in diameter of the wheel/tire. For example, if the new wheels are 10% taller than the OEM ones, you will reduce the torque at the rear wheels by 10%. That's pretty much the same thing as going from 3.73:1 ratio to 3.42 gear ratio.

[KMGZ400]

When you put larger diameter wheels/tires on your truck, the reduction in torque at the rear wheels is directly proportional to increase in diameter of the wheel/tire. For example, if the new wheels are 10% taller than the OEM ones, you will reduce the torque at the rear wheels by 10%. That's pretty much the same thing as going from 3.73:1 ratio to 3.42 gear ratio.

 

 

hence the reason i choose to run 265's