shortining a vn diff

[OldGMHolden]

They all have 1 offset axle...


Pete

I didn't know that either.
Do you mean ALL VN diffs, all Commodores, or what? 

Cheers,
Gaz.

[FC427]

I didn't know that either.
Do you mean ALL VN diffs, all Commodores, or what? 

Cheers,
Gaz.

All Borg Warner Ford and Holden  all 9'' and 8''  also Mopar dayna diffs  all have a short and long .....FC427.....

[OldGMHolden]

All Borg Warner Ford and Holden  all 9'' and 8''  also Mopar dayna diffs  all have a short and long .....FC427.....

Thanks FC427,

Well, well, well.
I never knew that. Even though I've owned heaps of Commodores from 1978 to now.
So would I be right in assuming that Commodores from VN (or when?) all have BW diffs?
Sorry to appear an ignoramus, but I haven't had any cause to climb under my Commodores since about 1986.
But I COULD probably change a "grey" diff blindfolded on a moonless night with one arm in a sling and a bellyfull of XXXX!

Cheers,
Gaz.

[FC427]

Commodore use Borg Warner  as well as F##d and Chrysler and even the good old Centura is a BW  and can be upgraded to 28 spline hemisphere and axles .....FC427......

[FCRB26]

Sorry didnt specify drinking and typing dont mix.
Commodores from VL onwards as VK earlier had  10 bolt type arrangment not %100 but they are different.

Also skylines R31 and pintara

im sure theres heaps more just cannot remeber.

Pete

[fbide]

Hi, this is an extract of what I have posted on the FBEK forum which may be of help.

Attached is some details of the modification I will be making to a VN diff to suit my FB.

There is much information on this forum about this but what is often missing is the relationship between the wheel offset and the resultant track.
This will use 2 short side axles and cutting of one side of the diff housing to suit.

It shows
- FB diff and standard track with 6p offset wheels
- VN standard diff, VN track with 43p offset wheels (Commodore standard)
- VN diff shortened to suit FB track with 43p offset wheels

I will post some picture of the actual modification when the sparks start to fly and some details of some other modification including brakes etc.



http://s1122.photobucket.com/albums/l524/fbidek/?action=view&current=VnDiffMods2.jpg

[old-blu]

  As mentioned before.          Aussie Diffs can shorten, re-build or provide advice on your project. They shortened my VS Diff & removed everything not required for my FC Ute.
                   
            Aussie Diffs   Currumbin  Qld   0755983144   Ask for Greg.

    They supplied RH Axle
            splined LH Axle
            2x rear wheel bearing kits
            supplied & fitted 1 set of pinion bearings
                                   1 set of carrier bearings
                                   1 pinion oil seal
                                  re-set carrier unit
                                   de-burred the cup set.
            Runs like a bought one... no dramas
                                                     Good Luck.  Old-Blu

[FCV08]

FC 427

Did you get a chance to look for the photos of the handbrake setup?

Cheers

Craig

[FC427]

Thanks for the reminder I will get them in the next day or 2 ....FC427......

[FCV08]

Just to give some details of the diff and rims I have used to get this one up and running. Donor was VN V8 BW Diff. Mods done by Geoff at Profab in Toowoomba.

I am running Cragar Eliminators 15x7 with 100mm back space and currently trialling 225 60 r 15.

From flange to flange without disc rotors on length was 1390mm.

Fully assembled this allows about 20mm between inner guard and the tyre and approx 30 mm between outer guard (top) and tyre.

Hope this helps.

Cheers Craig

[FCV08]

FC 427

Did you have time to put any photos toegther yet.

Sorry if I sound pushy.

Cheers

Craig D

[FC427]

FC 427

Did you have time to put any photos toegther yet.

Sorry if I sound pushy.

Cheers

Craig D

I took some shots but they came up pretty sad will up load them for now with a bit of a description till I can get better ones .....FC427.....

[FC427]

[/img]
The first shot only shows the rear gear box mount with the fixing point I used the original FC upper and lower wheels then an EH front mount and an EH front cable could not get a good shot as the car was parked in right up against a brick wall with cars all around the other shots show a centre pull type again very poor detail need to jack both cars up to get good shots will try again on Thursday ......FC427......