that would be correct

 

41 and 11 is a 3.73. I don't remember if this is the same number used in the 7.2 front differential.

 

I'm asking because I hadn't bothered to count the teeth when I had it apart. I know the math for 41-11 is correct, but I just want to be certain that that is what it is.

I've just converted my truck to AWD and it's binding up when it gets warm. I'm on my second transfer case (know good) and my second front driveshaft.

Yes I've verified that my tires are exactly the same size.

 

Found my problem.

Even though my RPO says 3.73, I've got 3.42 in the front.

Found another gear set and I'm changing it over.

 

Wow, I bet that was putting it in a bind. I'm can't believe that it would move. Are you replacing thee complete front differential or just the gears? I'll warn you that I've done several of these 7.25 front differentials and they are a real pain to set up. They are much worse that the average rear end.

 

I bought a 3.73 diff assembly from an AWD Astro and though it would be a drop in until I discovered a cracked housing when I cleaned it up. Came out of a van with front end damage.

I've done several gear setups and I think I'll be OK with this one.

 

thats shitty. i threw out a perfect 3.73 front end out of my 99 zr2 last year

too bad you didnt post up then!

 

The problem with these 7.2 IFS units its trying to get a dial indicator on the ring gear to check the backlash. There is a cover on the side with the short axle. You have remove the cover and stick a indicator in the hole to check the backlash. I use a lever type indicator with an extention to check it. Then I have to multiply the reading by 2 to get the right reading. It's a pain. Setting the pinion depth is also a lot of fun.

 

I have an old cover that I've cut-away for adjusting the backlash.