I scored a front and rear axle with 4.37 gears in them. I have heard that the factory 4.37's are weak. I have heard that the pinion gear teeth are week. Is this true? Has anyone had experience with them? If not true would these be a good match for my 33-12.50 swampers?

 

i can't imagine them being worth putting in. if you're looking to crawl, stay with the 4.11s and mod your t-case; if you're looking to gear up for the bigger tires, you'll want 4.88s with 33s or possibly 5.29s if you plan 35s in the future.

 

Well if you got them for free run them it's not hard to change 3rds out just save the other ones in case anything happens. Me I put 5.29 gears in and love them wish they where a little lower. But any thing lower will help out with those tires.

 

I run 4.37 and there perfect for 31" tires. I beat the crap outa them with my 35" krawlers and have never had a problems so ya should be fine. I dont do crawlin tho theres not a single rock around here just mud and trails

 

I got a friend that runs 4.37 in all his trucks and swears by them... runs them with 33s,35s, and soon 40s

 

i just got a truck with 4.37s and 35s and dont think i will ever run them again within a couple hours bout half the teeth blew off

 

you aren't supposed to run the new gears like that out of the box... there is a reason there is a 'break in' period!

or maybe you didn't have them set up correctly at all.

Al

 

well gettin to look at the truck taking stuff apart and what not the guy i got the truck from was a friggen retard and put diferent gears up fron then in the back and the 4.37s were the ones to go so i realy dont know how well they are