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will an 80 series lsd fit into rear 75 diff?

Posted: Wed Nov 22, 2006 5:18 pm
by known 2
as the question states,
does anyone know?

cheers

Posted: Wed Nov 22, 2006 5:56 pm
by Tooheys
yeah it will fit but the ratio's are slightly different im pretty sure. 4.1 for the utes and 4.11 for the 80 series

Posted: Wed Nov 22, 2006 8:00 pm
by DNA Off Road
Tooheys wrote:yeah it will fit but the ratio's are slightly different im pretty sure. 4.1 for the utes and 4.11 for the 80 series
Correct

Posted: Wed Nov 22, 2006 8:06 pm
by known 2
i thought they may be to small as this is a 1985 ute with the big diffs,

but thats good news wich of those 2 is the lower ratio?

Posted: Wed Nov 22, 2006 8:26 pm
by Tooheys
higher the number lower the ratio. Alot of ppl say that its such a small difference that it is ok and others say that it will wind up the transfer case. I havent seen it first hand so i dont know who to believe.

If you have a HJ or FJ which is what it will be being an 85 it will still fit they are the same size. It will also fit in the front if you wanted to.

Posted: Thu Nov 23, 2006 7:23 am
by eye-for-detail
AlbyOne wrote:
Tooheys wrote:yeah it will fit but the ratio's are slightly different im pretty sure. 4.1 for the utes and 4.11 for the 80 series
Correct
Its not too important but its the other way around
4.11 (37 x 9) for ute/troopy and 4.1 (41 x 10) for 80 ser

Posted: Thu Nov 23, 2006 4:44 pm
by known 2
sweet well that saves me a locker , it was originaly a hj75 , will it make it hard on the front diff and transfer as they are all spining at diferent speeds now?

Posted: Mon Nov 27, 2006 8:06 am
by keencdk
The difference in ratio is about 0.2%. This is much lower than the difference if you had new tyres on the rear and half worn tyres on the front.

On a part time 4wd you won't have a problem as you are unlikely to be in 4wd on high traction surfaces like bitumen anyway. I have had a 70 series rear (has an ARB locker in it) in my part time 4wd 80 series for nearly a year and not a problem.