Zx5 keeps killing rear diff

[haggis]

Just popped the rear diff in my brushless zx5

Seem to be having a terrible time with it

Its got a 4600kv flux motor and runs indoor on carpet.

If i let the slipper run at a normal tension it slips constantly (tried new pads and the rest)

Now that ive ran with it pretty tight its killed 2 rear diffs.

Diff balls are now cubes and bevel gears are stripped.


Is there an uprated set up or am i going to have to buy one of those god awful durango things that the rest of my club use.

[hloland]

I use durango diff in the rear, and it works superb! There is made an thread about how to install it here on oople. It`s no big deal...

[jim76]

have you shimmed the diff correctly? When i ran a lazer we used to shim the diff far tighter than the manual suggested, then ran it for 5 mins to bed the gears in. We also used to run the slipper with a tiny bit of slip for the initial acceleration. Never had an issue after that.

[RogerM]

Hi, if you do a search for posts by me with keyword diff / rebuild / setting you should find a long post covering the exact meshing process that I've always used.
The diff in my DB1 is the one out of my old ZX5 .. which became a ZX5-sp then FS then FS2 ... that car was built late 2007 / early 2008 and I've never put a crown wheel or pinion in the rear box (did kill a front one-way crown wheel after 3 years or so of use!!)

The trick is to get the mesh spot on, it will feel a little notchy with brand new gears but after 5-10mins of running it will silky smooth.

[haggis]

Thats me shimmed the death out of another diff

Will give it some time to bed in and hopefully itll be right this time

Managed to get a slightly notchy feel so fingers crossed!

[haggis]

Gave it a 5 min bed in but after 3 or 4 hard brakes outside this second hand diff is shredding as well.

Ive ordered 2 sets of bevelled gears today so fingers crossed a brand new part should sort it

Failing that durango might be the way forward.