fOrD mAn Xf has just got his converted to lsd and a ratio change, cant remember how much he supplied to diff joint but it was a fair price for what he got done, i think he's going to fit it over easter. perhaps if you pm him he'll pass on his experience
Yeah mate, actually put the diff in on friday, it was a bit of work, defentley a 2 man job as you really have to hold the diff in place with jacks and jack it up. I have 3:23:1 LSD 4 pinion diff (which is 5 times stronger than a conventional diff) that cost me $650 to get done, but it was a full rebuild and comes with a 12 month warranty. everything goes good, axles slid in good, and it makes no sound at all. I have taken it for a test drive, but I can't accelerate fast in it or exceed 75km/h in it as I have to run it in (see below) but I can automatically feel the difference it has made, just keeping low, i dont need to accelerate as much to get it moving.
bugga. i didnt really wanna pay some1 else to do my diff, i wanna be cheap and do it myself. wot would be a better ratio that will still wheel spin on demand (from a str8 gas carbied 4.1 4-spd) but wont explode?
can i do it myself if i change to whole centre (dont go unbolting crownwheels) or is it the shimming and aligning the pinion and crownwheel that is hard?
if it cant be done, i'll just get the whole diff from the wreckers (it'd be cheaper then paying a shop to fit my ratio)
like dean said, you have a number of options, but changing the gear sets etc. from diff to diff i would not try, the teeth have to line up exactly, I have seen what the guy at the diff shop had to line up, and he spent a bit of time lining them up, and thats with the knowledge and the tools. you can find plenty of 2:92:1lsd complete diffs, or use a EA "s-pac" diff, which are 3:23:1 lsd, i was considering this option, but i didnt want to muck around.....its not really that hard, its just the hand brake line has to be exchanged and i think the brakes have to as well....can't remember?
i knew nothing about all this diff business (i still have more to learn) but deankdx has really helped out and provided very, very useful information, so i would defenetely listen to him;-)
Heres what I have to do for the "run-in" with the new diff:
"All reconditioned and repaired diffs must be "run in" for 1000km at a speed not exceeding 75kph and must not be subject to trips over 50KM, misuse or abuse. New bearings are pre loaded and generate very high temperatures.