SX2 Diff setup

[dirt track date]

Hi

I'm having a few problems with my rear diff on my SX2. The problem is that it keeps spinning loose. Does it matter which way around it goes in the gear box, does this put any extra load on the locking / adjustment screw? Maybe I just need some better locktite!! If anyones got some tips on setting Cat diffs up please drop me a line.

Thanks

Alex

[Cardnim]

Sorry to hear of the problems mate, but there are alot of good threads already about Cat diffs on here - have a search and Im sure youll find the answer.

For me, Ive never used loctite on any of my Cat diffs, and they have never worked loose.
I dont think it makes a difference what way round the diff goes in the car. If its tight, its tight.

One thing to remember is that it is normal for a newly built (or refurbished) diff to work loose on the first run or two, so I always just re-tighten it up on that first race day after rebuilding. Then it should last months!

EDIT: oh, and make sure that you really lock down that grub screw. You know youve done it tight enough when you cant turn either of your hex drivers anymore no matter how hard you try!

[dirt track date]

Thanks I'll have a hunt through and see what I can find

[john333]

same here, never used locktite on my diffs. As mentioned above, make sure the locking grub screw is VERY tight, will be worth buying a good quality hex driver (1.5 mm) to do the job properly.

Only problem I've ever had with a diff is the screw snapping whilst on track, so when rebuilding it would be worth putting a new screw in too.

[dirt track date]

Thanks for the advice, yeah I've had the screw snap and ever since then there's been problems. I'll try doing the locking screw up super tight and see how we go.