OK, i need some assistance with draining diff oil. Ive tried gregories, Holden Manauals, and Max Elleries, with no sucess. Ive taken half of the bolts from the rear housing, and i can get a trickle of oil to come out. many have said, the bottom bolt is responsible for the diff drainage, and it makes sense, but no oil comes out. The oil is full as well. Is there any other way to drain the oil, apart from removing all the panhard bar, and diff housing, and re-gasketing it all? bit of a stuff around, if there is an easier way. BTW, Its a Turbo LSD diff. Thanks.[/b]

there is a black plug located at the back (back of the car0 side of the diff. Take this off with a good pair of pliers. Then try and space the gap between the diff cover and the diff. The plug vould be acting liking a bit of a vaccuum and not letting out much oil. Or, that could have been all the oil you had in there? im not sure bout the turbo diff but the na diff should be have an amount of oil in there that is level with the bottom of the plug when COLD. If all this fails, then i guess u are gonna have to spare 3 bux and undo all the bolts and let the diff oil come out. The 3 bux is the cost of a new gasket (Repco). It wont be hard to do, just make sure you use Loctite around the gasket holes and stick it in. Should be fine

Take all the bolts out and lever the cover from the diff, you dont need a gasket - you can use hi temp silicon. shouldn't take more that an hour.

so either way, it is absolutely mandatory that the diff cover plate comes off, as there is no drain plug? if so, I think ill do it when ive got a bit more time, got heaps of other things to take care of first :P

Yes, the only way to drain the diff oil is to remove the rear cover as there isnt a drain plug. If you are carefull you may be able to reuse the original gasket, if not get a new one or use sealant to guarantee no leaks. Ive always found refilling it, the ******* job, as you need to use some kind of a funnel or tube and obviously get it higher than the refill hole in the diff which is actually quiet hard to do, considering the space above the diff. Mick

Refilling is easy, just get someone standing next to the car with a container full of your new oil with a long tube that goes under the car and into the diff. Best to do this with 2 people so one can be underneath making sure it isn't leaking etc. Regards, Damian.

I have heard of people sucking the oil out of the re-filler plug. They used a hand pump, although I doubt you would get all of it out.

Refilling hte oil by pumping the old ****e out would be possible, but you wouldnt get any metal granuals, which will wear down the gears after mixing with oil out if you do it this way. Hmm not happy with the engineering of the diff in regard to changing oil. Borg Warner should have thought about it from a customer prospective. Oh well, i suppose you can inspect the gears while your at it, and learn a little on how LSD works. I plan to use another gasket, which is only $3.50 anyway. Which type of sealent do i use to mate gasket on the diff cover and housing? Will good old silastic do, or is something more heavy duty in order? I also noticed that when i had the car jacked up and both wheels off the ground at the rear, that if you jam one wheel with a peice of wood on the ground from stopping it spinning, and you turn the other with some force, the wheel that you are turning spins and the other one tends to stay stationary as it cant move due to the wood blocking it. I do have an LSD diff, but does this mean that there is a wear issue somewhere? I belive that the LSD on the vl turbos are mechanical and do- not have clutches. Both sides do it, but one more than the other, particularly the drivers side, which i think that most of the force of the engine is supplied to in a straight line, given the various drag racing vls, that always twist and dip in favor of the drivers side rear corner.

LSD's are designed to slip some... best thing to do, would be to have both wheels able to spin.. and spin one suddenly as fast as u can, and look at the reaction of the other one.. if it spins too - then all is good... if the other one doesnt even budge, then ur lsd is probably worn just a *tad*... can someone else confirm this test ???