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VN/Nissan B/W Vs LH diffs.

Started by _rorym_ , Feb 09 2007 05:39 PM

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#176 _brett_32i_

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Posted 24 March 2008 - 04:23 PM

lokka suit BW28 spline??

i am pretty sure that this one suits the BW diff

can anyone confirm that the BW is the same as a gm 8.25"

Edited by brett_32i, 24 March 2008 - 04:24 PM.

#177 _rorym_

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Posted 24 March 2008 - 04:25 PM

http://www.thirdgen....know-about.html

#178 ls2lxhatch

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Posted 24 March 2008 - 08:27 PM

It would appear that the Borg Warner M78 is known as the GM 9 bolt.

http://www.9bolt.com/

Powertrax 1931-LR

I would confirm with powertrax that the 1931-LR is the correct part.
http://www.powertrax.com/

Edited by ls2lxhatch, 24 March 2008 - 08:32 PM.

#179 _CHOPPER_

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Posted 24 March 2008 - 09:55 PM

http://www.4wdsystem.../html/lokka.htm

#180 _Brewster_

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Posted 24 March 2008 - 10:15 PM

Well Rory, if you thrash the hell out of this thing, and it doesn't shatter on ya, then i'm getting one. Looks promising, cheers for the links guys. :spoton:

#181 ls2lxhatch

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Posted 25 March 2008 - 12:47 AM

It looks like powertrax do not make a lock right for the GM 7.75 Borg Warner Australian 9 Bolt.

http://www.richmondg...1pdfs/ptrax.pdf

#182 _CHOPPER_

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Posted 25 March 2008 - 12:10 PM

Thanks for the link, didn't know they had them for 35 spline 9" diffs.

#183 _revmaniac_

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Posted 26 May 2008 - 05:34 PM

hey rory is it at all possible to get a pic of the entire diff installed in the car?.....i would like to see how the pinion entry lines up in the tail shaft tunnel...i had a VN BW cut down to use two passenger side axles which made it similar length to torana(and skyline it seems) but the pinion was right over to the drivers side of the tunnel.....after reading this thread i have struck a deal with my cousin to swap this diff for a complete skyline diff minus gears(i want 3.08 anyway)....just want to make sure this wont still be a problem.....hope you can help

#184 _Sammy_

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Posted 26 May 2008 - 06:41 PM

the pinion has to be off to one side due to the cast centre having to be located between the two upper control arm mounts.

#185 _rorym_

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Posted 26 May 2008 - 07:21 PM

Makes bugger all difference...sits 25mm closer to the tunnel on the drivers side...will get an undercar pic when I get it back from the exhaust man.
R
Posted Image

#186 _UNVSM8_

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Posted 26 May 2008 - 08:02 PM

hey just wondering how hard it is to remove a minispool from a diff that already has one to say put a LSD in it would the axles remain the same?

Ben

#187 _rorym_

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Posted 26 May 2008 - 09:49 PM

Yep.
R

#188 _UNVSM8_

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Posted 26 May 2008 - 09:50 PM

sweet as!

#189 MRLXSS

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Posted 30 June 2008 - 12:15 PM

I am just wondering how easy it is to adapt the brakes on the back.

Would Torana or HQ drums be able to bolt straight onto the R31 flanges?

Or

How easy is it to set up the rear discs to work with the standard Master Cylinder etc without costing the world?

Also, are all R31 Diffs LSD? Or are they single spinners (Only the GTS and Silhouette are lsd)

Cheers

Matt

#190 _MRNOS_

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Posted 30 June 2008 - 12:32 PM

I am just wondering how easy it is to adapt the brakes on the back.

Would Torana or HQ drums be able to bolt straight onto the R31 flanges?

Or

How easy is it to set up the rear discs to work with the standard Master Cylinder etc without costing the world?

Also, are all R31 Diffs LSD? Or are they single spinners (Only the GTS and Silhouette are lsd)

Cheers

Matt

I'd say stick with the disc setup rather than downgrade to drums, just get the stud pattern changed, Rorys just using a standard torana disc brake master cylinder-I think he removed the rear line restrictor???? Not all R31 had LSD-not many at all-if you want a LSD for it just get one from a VN-VS commodore, or try ebay theres a guy in VIC selling brand new LSD hemispheres ready to go for $550, 2nd hand ones seem to go for up to $300 so the new ones are good value

#191 MRLXSS

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Posted 30 June 2008 - 01:14 PM

Thanks NOS,

One of my mates is doing the conversion, and is just trying to work it all out. If his all goes to plan, We are going to do it for my GF's UC, as it seems like the best option!

#192 _rorym_

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Posted 30 June 2008 - 05:21 PM

Use std Torana parts/master/booster etc...pull the olive out of the master for the rear brakes...see car thread or it might be in here....use UC handbrake to pull both cables...works fine.
R

#193 Guns n roses

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Posted 30 June 2008 - 07:19 PM

hey guys,would hq drums or the skyline discs sit further out ??

#194 MRLXSS

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Posted 01 July 2008 - 09:18 AM

Good point,

Would the Skyline brake set-up sit out further than a HQ drum brake set-up would?

If so, would that make mounting HQ (Or Torana) Drums even closer to the standard overall track width?

#195 _MRNOS_

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Posted 01 July 2008 - 11:06 AM

From memory Rorys is about the same as Torana width/track, maybe a couple of MM out, mine is actually 23mm wider per side, which is great for clearance between the tyre/rim and the inner guard/chassis rail, but limits the outer rim width that I can run-on the simmons a 5inch outer is about it. The other thing with a narrow diff with disc brakes is, it can be a prick to get the shocks onto the diff mount without removing the disc backing plate/or caliper

#196 Guns n roses

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Posted 01 July 2008 - 07:24 PM

mrnos why is yours so much wider?

#197 _MRNOS_

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Posted 01 July 2008 - 07:49 PM

I think when it was done they shortened the housing to torana length, but with the commodore brakes theres a spacer between the disc and the caliper mount, the skyline setup doesnt have that spacer, doesnt bother me though as it gives more clearance on the inside and suits my wheels anyway

#198 Guns n roses

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Posted 01 July 2008 - 08:22 PM

ohh ok,sounds good!!!!i was just curious bout the skyline disc set up or hz drums and which would sit out further as im after being as close to torana standard wifth as possible...

#199 _MRNOS_

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Posted 02 July 2008 - 01:18 PM

Id say if you wanted to save on having the diff shortened too much the skyline brakes are the way to go, I only stuck with the commodore setup as the diff was already done in a car I wrecked.

#200 _LXEFI-8_

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Posted 08 July 2008 - 06:20 PM

can anyone tell me if a vn diff centre will fit into a r31 skyline diff
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