p111ddy Posted November 3, 2010 Share Posted November 3, 2010 Just wondered if you guys can give me some info please on replacing an na open diff with a auto TT diff & with what else would be required? I know that you'll need a prop shaft but if you're fitting a auto LSD to a manual na then will you require a auto prop or would any prop do? Also once you have the required prop then is that all that is needed to do the swap etc? Thanks for any help people Quote Link to comment Share on other sites More sharing options...
p111ddy Posted November 4, 2010 Author Share Posted November 4, 2010 Bump.... anyone?? Will I have to swap the outer casing from the original diff to the new one to line everything up or is it as simple as new prop, new diff, job done? Quote Link to comment Share on other sites More sharing options...
spiderpigcity Posted November 4, 2010 Share Posted November 4, 2010 Bump.... anyone?? Will I have to swap the outer casing from the original diff to the new one to line everything up or is it as simple as new prop, new diff, job done? straight swap, nothing else is needed. the auto prop shorter because of the gearbox not the diff, so should fit fine. Quote Link to comment Share on other sites More sharing options...
keron Posted November 4, 2010 Share Posted November 4, 2010 you wont need the propshaft either...the diff on the car is a jap spec small casing already... is the auto tt diff a jap spec smaller casing? if so then all you need to do is swap the end flange on the diff....think its a 32/33mm nut....its the flange that has the 3 holes for the prop....basically they are spaced out differently between the na and tt... Quote Link to comment Share on other sites More sharing options...
Homer Posted November 4, 2010 Share Posted November 4, 2010 Keron, the auto TT diff is the same small casing as the NA one (and also the same casing as the v161 6spd diff). So just to be clear, if you have an NA diff and want to swap to an auto TT diff only the flange on the diff needs to be replaced? Also, since you are replying to this thread do you find that the NA diff is strong enough for a TT engined car? Quote Link to comment Share on other sites More sharing options...
keron Posted November 5, 2010 Share Posted November 5, 2010 yes all the jspec autos are smaller casing....the uk auto would have the larger casing.. yes as the casing on them are the same size..all you have to do is swap over the end flange to allow you to bolt the na prop to the tt diff, so you need the put the na flange on the tt diff....32 or 33mm nut iirc.. the na diff does work really well tbh...done over 30 now with na diffs...(5 spds) Keron, the auto TT diff is the same small casing as the NA one (and also the same casing as the v161 6spd diff). So just to be clear, if you have an NA diff and want to swap to an auto TT diff only the flange on the diff needs to be replaced? Also, since you are replying to this thread do you find that the NA diff is strong enough for a TT engined car? Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.