how hard could it be?

[felskee]

welll i have 33 's on my hoe and .....3:42's.... yes but anyways id love to know what the best ratio is for me. i was thinking 4:56 ? and also do i HAVE to change the front ones? thank you and how hard would it be?

 

[BattelWagun]

I'm not sure about what ratio would be best, but I will say this: Unless you have experience with this, I would just get it professionally done. Messing up backlash, shimming improperly, etc. could cause MAJOR issues. However, if you really want to do it yourself and you're willing to get all the proper tools, etc. and do ample research to finish the job properly though, it might be doable...

As for the front gears, you don't have to change them if you're never going to use 4WD. But if you do decide to use 4WD with 3.42's in the front and 4.56's in the rear, you can and will majorly f*ck something up. bad.

 

[felskee]

how would that mess stuff up?

 

[BattelWagun]

Dou you mean 4WD with two different ratios? Well the front tires would be pulling the front of the truck at a faster rate than the rear tires. Especially because the ratios are so far apart. This is a fully locked system so all the force of two separately geared drivetrains will be put on the transfer case, and the front an rear diffs. After a while, something will fail, most likely the TC...

 

[96ProCompTahoe]

first time you catch grip front and rear with different ratios you will be dead in the water. blown t-case , front or rear diff, or any and all of the above if not more.

if you haven't done one before and don't have someone with experience with it to help, let a shop do it.

 

[ch4d]

well here is a link for you man to look at a gear chart here you go.

http://www.tahoeyukonforum.com/forum/showthread.php?t=23591

 

[felskee]

how much would that run me?

 

[ch4d]

how much would that run me?

Depends on what brand you are looking at. You doing it your self or having someone else do it?

 

[felskee]

someone

 

[_Dylan_]

Around $500 for parts

Expect to pay over $1000 for both.

4.56/3.42=1.33 or 133%. That means that if you only geared the rear axle, the front would spin 4 times when the back would spin 3 times. Not good. The general accepted max difference is 2%, but IMO if you use 4wd on the road during winter you would want the same ratio.

It sounds like you don't know much about axles, I wouldn't suggest trying to install them. Its complicated without guidance and requires special tools.