supersporter69

im sorry to hear that man yea i fudged up my dif last night at the track to spraying out of the hole im going with a 31 spline set up to

01snake

im doin a fully built rear with a 31 spline this winter, to welcome the nitrous i am gonna put in

contentsunderpressur

What happened to yours?

supersporter69

launched really hard now it only spins the left tire so im pretty sure i jacked the clutches up in the stock dif

contentsunderpressur

O ok. Has anyone else had the same thing happen to them as I did?

2000GT4.6

I would do the enitire 31 spline setup, but it is possible that rear flex caused your gears to get misalgined etc and break the teeth off.

You should also have the axle tubes and torque boxes welded for extra strength.

contentsunderpressur

what do you mean by weld the axle tubes?

contentsunderpressur

Do you mean where the tubes go into the chunk or put the angle iron on the tubes and weld them?

contentsunderpressur

I have the 28 spline moser axles now. How could going to a 31 spline help keep the gears from stripping? I'd like to keep the axles I have now and make the rest hold up if possible. I found a 31 spline kit that comes with everything for 1000 dollars but really don't want to spend that much right now. Do you think a new set of gears, installation kit and rear girdle would hold up? I just want to get some opinions. I'd hate to spend 450 dollars fixing what I have just for it to break again and I have to spend the 1000 anyway. Then again I'd hate to spend the 1000 if I can get away with only spending 450.

2000GT4.6

The 31 spline kit is simply stonger, just because you broke the acutal gear this time doesn't mean you will next time.


Welding the axle tubes means they weld them to the diff. They just put a nice fat bead around the axle tube welding it to the diff, so the tube won't seperate from the diff and explode the entire rearend. You will definatly want a performance shop to do this, and if you ask them if they can and they say "whats that" don't have it done there. It must be done correctly, or you can warp the rearend.

The torque boxes are the same deal, they weld them up so they don't bend/brake on hard launches.

I would definatly be going with a full 31 spline setup, new carrier etc etc if I was you plus the welding and the rear diff cover. With your 4.30s and a 31 spline your going to be LAUGHING at 1.7 60' times with a new set of tires.

Put it this way, I haven't even destroyed my stocker yet (stock + 3.73 + girdle) and I am going to have MCP put in some 31 splines etc etc. I want some mean 60' times next year, and with the 31 spline setup you will have little/no worry of having to haul it back on the trailer.