lj torana diff change? - Aussie V8 | Holden - Ford

70rey · 20-04-2008, 02:11 PM

hey guys i got the chance to get my hands on a lsd diff out of a vn commo. now the diff has laready been in an lc drag car so it will slot stright into my lj torana

the problem i have is the stud pattern is different to my original ones now. what im wondering is can i re-drill the vn hubs back to the lj stud pattern. if i can will it affect the strength or damage it or anything like that.

cheers kris

LX8VD77 · 21-04-2008, 01:10 AM

i got a 9'' built for my hatch and they fitted both patterns (commodore and torana) on the same axles so it can be done they had to weld up a couple of the big holes to do it and they said it will hold piece of cake so thats what i did. As for brakes i got my disks drilled to the commodore pattern so they could run my brakes as well. I guess you could do the same to the drum rotors to make it easy for a brake conversion if its not running the original brakes on the rear if not you might have to get your brake bias right if the cylinder isn't the same dimensions just some things to think about. Also is the diff housing the torana width? or is it shorter cause the drag car had tubs ect,ect have fun.

70rey · 21-04-2008, 09:25 AM

hey mate thanks so much... ah the drag lc had a 202 in her so no i dont tink they tubbed it. and they brakes on the new diff are commo brakes.

cheers for that something to think about i guess. its either this or im gonna go to a 10 bolt sauls diff

LX8VD77 · 21-04-2008, 07:01 PM

Also you might need to modify your tail shaft and need a different handbrake cable.

70rey · 21-04-2008, 11:04 PM

hmmm never thought of that either...

would i have to if i went to a sausl 10 bolt diff

LX8VD77 · 21-04-2008, 11:56 PM

I don't know too much about the saulsburys the small 10 bolt would probaly have the same drum brake set up or similar. As for the tailshaft it would be the same for a small 1 but i haven't seen a big saulsbury to measure up against. I guess you would need a shorter tailshaft but the brakes would be similar talk to a diff place they should be able to be of assistance or stick with the bangos at $100 a pop there not too bad and avalable in a heap of ratios.

PRO-GMH · 22-04-2008, 10:20 AM

Ive got a mate in the same situation. He has a hot 186 (280hp) and cant keep diffs in the thing. Theres nothing in a fine spline.
He's weighing up a borg warner conversion... but thats going to cost a fair bit.

AGGRO · 22-04-2008, 10:35 AM

But it would be worth the dollars in the long run. Kris, talk to the diff guy at driveline services in brendale. He did my centre and axles and he also did joe's diff in the corty. Great bloke and he knows his shit. He will have the best advice for ya.

70rey · 23-04-2008, 03:47 PM

hmmm thanks mate... do you have his number i might go have a chat to him as to whats best for the rana.

cheers rowan

20-04-2008, 02:11 PM	#1 (permalink)
70rey casual poster Trade Rating: (0) Join Date: Mar 2008 Location: kallangur Ride: lj torana Posts: 141	lj torana diff change? hey guys i got the chance to get my hands on a lsd diff out of a vn commo. now the diff has laready been in an lc drag car so it will slot stright into my lj torana the problem i have is the stud pattern is different to my original ones now. what im wondering is can i re-drill the vn hubs back to the lj stud pattern. if i can will it affect the strength or damage it or anything like that. cheers kris

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21-04-2008, 01:10 AM	#2 (permalink)
LX8VD77 Newbie Trade Rating: (0) Join Date: Jun 2007 Location: perth Ride: fuel card and torri hatch Posts: 22	i got a 9'' built for my hatch and they fitted both patterns (commodore and torana) on the same axles so it can be done they had to weld up a couple of the big holes to do it and they said it will hold piece of cake so thats what i did. As for brakes i got my disks drilled to the commodore pattern so they could run my brakes as well. I guess you could do the same to the drum rotors to make it easy for a brake conversion if its not running the original brakes on the rear if not you might have to get your brake bias right if the cylinder isn't the same dimensions just some things to think about. Also is the diff housing the torana width? or is it shorter cause the drag car had tubs ect,ect have fun.

21-04-2008, 09:25 AM	#3 (permalink)
70rey casual poster Trade Rating: (0) Join Date: Mar 2008 Location: kallangur Ride: lj torana Posts: 141	hey mate thanks so much... ah the drag lc had a 202 in her so no i dont tink they tubbed it. and they brakes on the new diff are commo brakes. cheers for that something to think about i guess. its either this or im gonna go to a 10 bolt sauls diff

21-04-2008, 07:01 PM	#4 (permalink)
LX8VD77 Newbie Trade Rating: (0) Join Date: Jun 2007 Location: perth Ride: fuel card and torri hatch Posts: 22	Also you might need to modify your tail shaft and need a different handbrake cable.

21-04-2008, 11:04 PM	#5 (permalink)
70rey casual poster Trade Rating: (0) Join Date: Mar 2008 Location: kallangur Ride: lj torana Posts: 141	hmmm never thought of that either... would i have to if i went to a sausl 10 bolt diff

21-04-2008, 11:56 PM	#6 (permalink)
LX8VD77 Newbie Trade Rating: (0) Join Date: Jun 2007 Location: perth Ride: fuel card and torri hatch Posts: 22	I don't know too much about the saulsburys the small 10 bolt would probaly have the same drum brake set up or similar. As for the tailshaft it would be the same for a small 1 but i haven't seen a big saulsbury to measure up against. I guess you would need a shorter tailshaft but the brakes would be similar talk to a diff place they should be able to be of assistance or stick with the bangos at $100 a pop there not too bad and avalable in a heap of ratios.

22-04-2008, 10:20 AM	#7 (permalink)
PRO-GMH Senior Member Trade Rating: (0) Join Date: May 2007 Location: Bronx Ride: monaro coupe 350 Posts: 674	Ive got a mate in the same situation. He has a hot 186 (280hp) and cant keep diffs in the thing. Theres nothing in a fine spline. He's weighing up a borg warner conversion... but thats going to cost a fair bit.

22-04-2008, 10:35 AM	#8 (permalink)
AGGRO Senior Member Trade Rating: (0) Join Date: Jan 2008 Location: Brisbane Ride: LH Torana SL/R 5000 Posts: 477	But it would be worth the dollars in the long run. Kris, talk to the diff guy at driveline services in brendale. He did my centre and axles and he also did joe's diff in the corty. Great bloke and he knows his shit. He will have the best advice for ya.

23-04-2008, 03:47 PM	#9 (permalink)
70rey casual poster Trade Rating: (0) Join Date: Mar 2008 Location: kallangur Ride: lj torana Posts: 141	hmmm thanks mate... do you have his number i might go have a chat to him as to whats best for the rana. cheers rowan

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