TONYSPRINTER Posted September 21, 2005 Share Posted September 21, 2005 hi i have 2 late sprint axles how can i tell if any of them are lsd thanks tony. ??) Link to comment Share on other sites More sharing options...
AdamSindrey Posted September 21, 2005 Share Posted September 21, 2005 Jack it up so both back wheels are off the ground, put it in gear so prop wont turn and see if you can turn any of the wheels by hand. If it isnt an LSD the opposite wheel will rotate in the opposite direction to the one your turning by hand. If it is and LSD you wont be able to budge them.Make sure the hand brakes off :P Link to comment Share on other sites More sharing options...
Lewis Posted September 22, 2005 Share Posted September 22, 2005 No, they should both rotate in the same direction if it's an LSD :) ...if one doesn't turn, or turns the other way, then it's a standard open differential.I think also Sprint LSD equipped axles have an "S" stamped on the rear cover plate, although correct me if I'm wrong.If you're looking for a cheaper LSD alternative, consider the 'Phantomgrip' option...I've never used one myself but I've heard several good reports about them and they should be able to set you up with something :) Link to comment Share on other sites More sharing options...
Deleted User Posted September 22, 2005 Share Posted September 22, 2005 Adam is correct - the car is in gear, so the propshaft cannot rotate, therefore once the limited amount of movement between the two wheels and any play in the propshaft and gearbox has been taken up, both rear wheels will be locked.For a Standard Diff - with the car in gear, the opposite wheel will rotate in the opposite direction. With the car out of gear, either the opposite wheel will rotate in the opposite direction or it will remain static and the propshaft will rotate - depends upon relative friction as to which happens. Occasionally if the friction balance is correct and the car is out of gear you will get both wheels turning in the same direction and the propshaft rotating - just like an LSD when the car is out of gear.For an LSD with the car out of gear, both wheels will rotate in the same direction and the propshaft will rotate.Therefore the gauranteed way to distinguish between an LSD and a normal diff is to put the car in gear. Link to comment Share on other sites More sharing options...
Mad Mart Posted September 22, 2005 Share Posted September 22, 2005 Almost correct Lewis, the S should be a suffix letter on the VA number stamped on the underside of the diff. housing. Link to comment Share on other sites More sharing options...
Lewis Posted September 22, 2005 Share Posted September 22, 2005 Ah cool....never heard of doing it in gear, ever! New one on me :D Link to comment Share on other sites More sharing options...
SprintV8 Posted September 22, 2005 Share Posted September 22, 2005 For a fail safe way of checking to see if it's got a LSD,If both wheels rotate the same way,Remove the rear back plate,And double check,If the diff been out and someone set it up tight both wheels will rotate the same way. Link to comment Share on other sites More sharing options...
Deleted User Posted September 22, 2005 Share Posted September 22, 2005 What you say is correct, if it is out of gear, so thats why you put it in gear - if its a standard diff - even one that has been built "too tight" - the opposite wheel will rotate in the opposite direction.As you say, the way to be 100% certain is to take the cover off ! Link to comment Share on other sites More sharing options...
SprintV8 Posted September 22, 2005 Share Posted September 22, 2005 I did buy a Sprint that had a LSD fitted,I went to look at it and checked the LSD by spinning the wheel and the other side spun the same way,I bought the car with the intention of removing it to go in the V8,Took the Rear cover off when I got it home it had a Standard Diff fitted.Found the diff had been replaced and no freeplay anywhere.I reshimmed and sold the car on,Making a slight profit.As before remove the rear cover it's the only safe way. Link to comment Share on other sites More sharing options...
AdamSindrey Posted September 22, 2005 Share Posted September 22, 2005 ahh but if it does spin in opposite directions it saves u a lot of hassle :P Link to comment Share on other sites More sharing options...
dollyboy Posted September 27, 2005 Share Posted September 27, 2005 hehehe. me again.i agree... i think... with someone... jack up back end, car out of gear, both wheels turn same way, should be LSD.am I right in thinking there have been different LSD's available for dolly? i.e. mod'd ford LSD, quaife, or is the quaife the mod'd ford one?AAARGHHH! good for extra grip when pulling off from lights to destroy 'saxo boy', expensive way to achieve it though! track use must be biggest benefit... Link to comment Share on other sites More sharing options...
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