tires for a 3.73

[FatBoyBlazer]

I am thinking about geting a suspention lift and a body lift on a 91 blazer with 3.73 rear gears that was just rebuilt. I want to give it at least a total of 8-9 inches of lift and also new tires. The Tires that i have now are remington mud brute. They are 32x11.5 15. What is a good combo?

 

[bigerik]

If it were my truck I would put no larger than 33 or 35" tires because I like to have a torquey combo. I have seen a picture of a 73-91 Blazer w/ 35" tires, and it looked great. I have 5.13s on both my trucks (3 speed autos) and run 38 to 39.5 tires, and I wouldn't want a higher gear ratio (wish I could get lower, but have 14FFs). Good luck!

 

[Blazer_Boy]

Whats wrong with it now? It looks really nice to me. You're only setting yourself up for headaches with that oversized stuff. Unless your doing some trail running, I'd leave it. 3.73s with 32s is a nice setup, if you get the monster tires you're gonna need something like a 4.56.

Two lanes wide, twelve yards long, sixty-five tons of American pride....Canyanero!

 

[MudFrog]

Even with just street use (not sure if you wheel or not) if you go to a 38/39" tire your gonna need to beef your axles and get rid of the 3.73's. That combo will tear your tranny apart (assuming you still have the 700R4). You would probably need 4.88's or something in that general range.

89 K5 Silverado
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[Jason73K5]

I'd go with 35's. I used to have them with 3.08 and liked it, so 3.73's should work fine.

 

[UseYourBlinker]

I was running 33/12.50/15 for about 2 years with 3.07. I just changed them to 3.73 works great.

<font color=blue> I'm down with the clown, till I'm dead in the ground.</font color=blue>

 

[84K5WITHAJUNK305]

The biggest I'd go with a 3.73 would be a 36, anything bigger and you'll want lower gears

 

[Blazer79]

I'm going from 3.07 to 3.73 soon just to be able to use 33" tires (currently 31x10.50 that are actually 29"). If I wanted 35" tires, I'd probably go with 4.11.

Use a rpm calculator such as this one: <A target="_blank" HREF=http://www.4lo.com>http://www.4lo.com</A> so you can determine how the rpms will be affected with each swap.

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