TTONEFOURTWO Posted December 14, 2014 Share Posted December 14, 2014 Hi Guys, I'm putting an Altezza Torsen LSD into my Corona coupe IRS F series diff. So I've taken the open head out and have put the new LSD diff head in. It seems very tight with the original shims... and is very tight to turn where the driveshaft bolts up. Does it need new thinner shims? Or is it suppose to be tight? Thanks! Quote Link to comment Share on other sites More sharing options...
Roman Posted December 14, 2014 Share Posted December 14, 2014 Yes you'll need new shims, the size of which is set by getting the tooth engagement correct (so it isnt tight to turn)It's not that they both need to be thinner, it's that you need to move the diff slightly to the left or right to get the tooth engagement correct.So thinner on one side and thicker on the other. It's a bit of a fiddly job that's important to get right. The live axle diffs are easy but for this sort of thing I'd take it to a diff shop. In other news, dont suppose you've got a spare 3.7 crown wheel and pinion? Quote Link to comment Share on other sites More sharing options...
TTONEFOURTWO Posted December 14, 2014 Author Share Posted December 14, 2014 Awesome thanks for the quick reply!! I'll take it to a shop to get it set. I'll PM you now Quote Link to comment Share on other sites More sharing options...
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