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Tightening LSD

Submitted: Monday, Nov 01, 2004 at 11:59

conman

Hi Everyone,

Just wondering if it was Possible to "tighten" a limited slip diff.
Does this have any effect on reliability, cornering etc...
Thanks
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ThreadID: 17468 Replies: 4
Views: 839 FollowUps: 2
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AnswerID: 82553   Submitted: Monday, Nov 01, 2004 at 14:31

Chaz replied:

Hi Conman,
Yes it is possible to tighten a "clutch type" LSD. I use to do it to the ford 9 inch diffs for drag racing, simply by adding an extra shim to the clutch pack. Of course this would be detrimental to a street car, in that it wouldn’t allow the differential action during cornering and this would be hard on tyres and axels. If your going to all the trouble of stripping the diff down, then you may as well replace the clutches and springs with heavy duty ones to reduce the slip. If your after anything more then perhaps a auto locker would be a better option.
Good Luck
Chaz
Reply 1 of 4
AnswerID: 82580   Submitted: Monday, Nov 01, 2004 at 17:35

Phil G replied:

An oil change sometimes makes an LSD work better. Also Penrite sell an additive that enhances LSDs.
Reply 2 of 4
AnswerID: 82602   Submitted: Monday, Nov 01, 2004 at 18:58

Truckster (Vic) replied:

Yes it can be done, and its about $200-300 depending who and where does it.
Reply 3 of 4
FollowupID: 341644   Submitted: Monday, Nov 01, 2004 at 19:10

Steve posted:

Does this apply to a TOYO L/C 80 series standard rere diff also ----'96 model ?? On my wagon the thing does not really work at all, and IMHO is at present useless !!
FollowUp 1 of 2
FollowupID: 341848   Submitted: Tuesday, Nov 02, 2004 at 21:35

Member - DOZER posted:

Steve
free advice...dont bother...spend the $$ on a air locker and have open diff on road for less tyre weara and selectable locked diff for awsome traction.
Andrew
twin lokas...unstoppable.

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FollowUp 2 of 2
AnswerID: 82716   Submitted: Tuesday, Nov 02, 2004 at 11:51

Bundyman replied:

Conman the cheapest way to tighten up your LSD is to fill it with normal diff oil. I filled a LSD on a rodeo with normal diff oil and it chirped all day long on the bitumen. I had to add a "friction modifyer" to ease up the tyre wear. This might be the cheapest way but in the long run you will end up stuffing your LSD - but this might give you enough time to save up for a diff locker.

Cheers,
Hughesy
Reply 4 of 4