its a vs non independent diff champ. . their a fare bit of cash to get done like mine though got it all done properly and got warrentys and been told it will handle around 850 900hp till we start to have probs and no1 i know is running power like that in a 1200 lol

its for a 1200 ute 1979 model..
i would prefer not to do too much tunnel widening to fit these in tho.

I can't remember which model Laney got his diff from but I thought the VL-VN-VP all used the same borg warner centre as the R31 (axles are different though).

I can't remember who told me this, but apparently an NA model Fairlane diff is a real goer. Borg warner, LSD, 4.11, and you can keep it four stud with R31 axles. Can anyone confirm this (I haven't had a chance to check one out yet)?

LANEY
what model como did you use???
what brand diff is it???

i used commodore houseing shortned new mounts.
- 31 spline billet axels
- pintara gears
- full spool
slotted rotors and clubsport brakes. shes going to stop in a hurry lol and its tuff but gota have some spare cash!! or credit card lol

I'm running an R31 LSD, but if I was doing it over again I'd definitely consider using a Hilux diff.

R31 diff's are perfect except for 1 thing... They whine like buggery.
I problem I believe is to do with the ratio / no. of gear teeth.
From memory I think they're only a 9 tooth pinion, so the velocity of the pinion & crownwheel teeth with respect to each other Is quite high.... Once they start to whine, it's very difficult to get them to stop.
I've tried everything from varying grades of lapping paste to releiving all the gear teeth.
Still whines.
Would definitely look at options (inc. Hilux) if I was doing it again.

hilux cut down but they are big and heavy.

borgwarner lsd

good diff that most people use is r31 skyline diff

and use the silvia gearbox but some people use a stumpy bellhouseing

wat car is it for ?

if i was putting in a ca18det or sr20det what kinds of drive trains and diffs should i look at replacing the orriginal so that it is appropriate for the power increase of the engine..
i have had a good look through this site and i would like to know the most common conversion and also what you think would be best suited.