Paul372 Posted January 26, 2009 Share Posted January 26, 2009 I ve got a replacement diff for my tt auto supe because mine has had it and i want to get it back on the road, but how hard is it to replace the diff is it a striaght easy job to do, can anyone give me some pointers please or has anyone got a step by step guide thanks Quote Link to comment Share on other sites More sharing options...
miko_supra Posted January 26, 2009 Share Posted January 26, 2009 It's not too bad a job, the only difficult part is handling the diff as it weighs a tonne. But you need to remove the prop shaft fromt the diff first. Then the two front support bolts cirlcled here, and disconnect the drive shafts fromt the diff which are held in with 6 10mm allen key headed bolts. The shafts only sit into the diff by a couple of mm so they should come out easily with some persuasion and a gentle tap of a hammer around the faying surface. And then there is the 3 diff bush bolts which are at the back which again are an allen key head (12mm i think) and to undo these you will also probably need to disconnect the anti roll bar from its mounts on the subframe for better access. Quote Link to comment Share on other sites More sharing options...
Terminator Posted January 26, 2009 Share Posted January 26, 2009 Toyota list all four bolts shown in the pictures as stretch one use items, so they should be replaced, when the diff is changed. The new bolts must be tightened the a specified torque. It is up to you obviously, but for you own and other road users safety, they should be changed. I have the part numbers some where from changing my diffs over. When disconnecting the shafts take care with the inner end covers, they can come off. This not a problem, but get them back on to avoid dirt contamination which will shorten the life of the inner CV joints. Quote Link to comment Share on other sites More sharing options...
Paul372 Posted January 26, 2009 Author Share Posted January 26, 2009 ok thanks guys dont look to bad of a job i think i will give it go myself. If you could give me the part numbers for the new bolts needed that would be great, i ve got a torque wrench do you know how tight to do them up Quote Link to comment Share on other sites More sharing options...
Paul372 Posted January 26, 2009 Author Share Posted January 26, 2009 looks good all painted up might do my diff before i put it in Quote Link to comment Share on other sites More sharing options...
Paul372 Posted January 29, 2009 Author Share Posted January 29, 2009 do you have to total remove the prop from the car to get the diff out or can you just unbolt the diff end Quote Link to comment Share on other sites More sharing options...
miko_supra Posted January 29, 2009 Share Posted January 29, 2009 do you have to total remove the prop from the car to get the diff out or can you just unbolt the diff end Not too sure, you might be able to. But removing the prop is a piece of p*ss and its just 3 bolts onto the diff and two small bolts in the centre holding it up. Then it just slides out of the gearbox. Quote Link to comment Share on other sites More sharing options...
Paul372 Posted January 29, 2009 Author Share Posted January 29, 2009 Not too sure, you might be able to. But removing the prop is a piece of p*ss and its just 3 bolts onto the diff and two small bolts in the centre holding it up. Then it just slides out of the gearbox. i fitted the diff today, thanks for all your help the supe back on the road, i managed to do it without removing the whole diff, not a bad job to do, glad i done it myself happy days Quote Link to comment Share on other sites More sharing options...
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