Hey everyone. I'm looking at upgrading the standard diff in my FG XR6 to an LSD.

I've been doing some research and I know about the two types of diff the M86 which would be easy to upgrade and the M80 which I have and can't find much on at all.

I'm wondering if anyone makes a diff centre that will fit into the M80 housing maybe there is a TrueTrac that will fit?
If not what are my other options? I've read that the M86 diff needs a bigger tail shaft so if I had to upgrade to an M86 I would need a tail shaft as well, probably not too easy to find.

Thanks for any help you can give me.

edit: oh and the stock diff ratio is 2.73

To upgrade you'll need Tailshaft, complete diff assembly including drive shafts as it's a 30 or 31 spline (not sure) while the M80 is 28.

find any information about the true trac? i am looking to do the same thing at the moment, m86 diffs are hard to find. so yeah im looking for alternative options too...
let us know what you find, i am waiting to hear back from a local diff place at the moment... so maybe ill have some options soon.