Like I said, Serum will reply to this, I'm sure. ;)

Gustav, you have a good idea with that. (an extended bearing thingy). To me, that seems like somethat that could only be made on a lathe. It would require a large nut too! (~3/8"). So basically, all that is needed is a back plate for a differential that would have an extended bearing mount, that would be cut on a lathe. I will try to design this piece on Solidworks.

Yes exactly right.The back plate with 'extended bearing thingy'.
Plus you need to make a long diff outdrive but thats no biggy.

I actually realised that sitting in front me is a vertigo diff locker which would look suspiciuosly like an 'extended bearing thingy' once it's been through the lathe to make the diameter 10mm all the way along the shaft and had threads put on after where the bearing sits.I'll probably make one from scratch but the locker could be used.I've figured out how to make strobe mount on a 10mm shaft(10x15mm bearing or bushing, strobe bored out to 15mm.And pads but they're already 14mm.)and fit in the length of the locker including plates, pads, strobe,narrowed sprong and big(but thin) nut.Whole assembly only c.1" longer than a stock diff.End of extended thingy sits on the usual 10x16mm bearing.

The flat back of the extended bearing thingy will be one plate,the other will be locked to it with a notch in it and short pin sitting in a groove running along the extenended thingy.obviously the pin can't go through the extended thingy because that would lock the shaft inside it.

Anyway hope that's clear as mud but as you say metalman it's actually rather simple:C: .

I was designing a back plate that would be compatible with a XTM diff. Ran into a problem. I don't know how an extened output gear could be gotten. If it were custom made, it would be expensive. But anyways, here is a picture of how far I got:
http://img.photobucket.com/albums/v1...ator/part1.jpg

On the diffs i've got(LST diffs) the diff out put shaft isn't permanently attatched to the out put bevel gear-just a shaft with a pin through driving the gear so all it would be is a long 6mm shaft with a hole through one end and an outdrive screwed to the other.

I wish i could post pics like that to demonstrate but i'm the world's worst with computers but you've got exactly the right idea.:)

I just looked at the LST's exploded view. I see what you mean with the diff! What diameter is the shaft on the outdrives?

6mm, so it would take a regular 1/8 scale outdrive cup.

My extended bearing mount/thingy has 6mm internal diameter(well slightly larger so the shaft spins freely and 10mm external diameter for plenty of beef.It'll spin on a 10x16mm bearing and sit in a regular buggy diff mount.

I guess I will be getting a LST diff! And I will have to find a place to get the back plate machined at.

Metalman how do i post a photo? I took them as e-mail sized files and saved them on my computer.Do i just copy and paste using the IMG thing in the reply page?

told you about me and computers:L: .

If you want an LST diff there's zillions on e-bay dead cheap.I've lunched a couple of bevel gear sets in them but i blame it all on hot racing diff cups.haven't had a problem with maximizer cups, in fact i'm getting another pair from Mike.Never had a problem when using the stock diff cups either though.Bevel gear sets are rediculously cheap any way and actually seem pretty tough,the outdrives are very tough too.

how do i post a pic?

You posted one! So is that an aluminum diff cup for the LST?

Yes, just a little mock up to show the idea.That's a maximizer diff cup with a vertigo locker and the plate in between is from a hot racing diff cup for the LST which has the right shape inside for the outdrive/pin/bevel gear .Those 3 just just screw together and if i counter sink the screws into the diff locker that will form the flat slipper plate.

Then it's just over to Billy's to borrow his skills and his lathe,a couple of bearings to buy and suitable a nut,i'm using the strobe pads and spur adapter,make a 6mm shaft,the other slipper plate and voila slipper/diff.
(well maybe not quite that simple but near enough)

Don't forget that you need a die to put a thread on the 10mm part. I will have to do some more searching to find an alternate way to do it from what you are doing that would cost less.

Yeah,you could do it for much less! just i already have these parts and reckon they should work.I'll never use the locker anyway because when i tried it it did nothing but bend MIPs.

Billy tells me that adding threads to shafts is no problem,any threads per inch i want so if you can find someone with a lathe you should be able to make the whole part on that.

You could integrate the shape inside for the bevel gear(it's just a little raised section and a recess for an o-ring to sit in) into the part or you could just use the diff ring gear in between since it already has the shape in it (just remove the part the bearing sits on) or if you like i'll send you the plate from a hot racing diff for free.(it's the same as the ring gear just without the teeth so you could just use the ring gear if you buy a complete diff on e-bay.