Welcome to Just Commodores, a site specifically designed for all people who share the same passion as yourself.

New Posts Contact us

Just Commodores Forum Community

It takes just a moment to join our fantastic community

Register

Diffs, FAQ

Pub247

Well-Known Member
Joined
Apr 14, 2006
Messages
3,372
Reaction score
59
Points
48
Location
Melbourne S.E.
Members Ride
Ford Fairmont
some pintara's had them and some r31 skylines might as they run the same 78 series diff. extremely rare to find a set of 3.7's though, Ive been searching for like over a month and only just found a set and snapped it up straight away

No those only suit bw78 series diff, you need gears to suit bw80 series i think only some hsv's from factory had these look on ebay or talk to a diff sepcialists theyll be able to help you
 

jayz383

jayz383
Joined
Sep 3, 2007
Messages
25
Reaction score
0
Points
1
Location
taupo nz
Members Ride
vr executive v8
how do we get the gears out of a irs head? prob a silly question i know but i don't want to break anything. i'm guessing i need to unscrew the bearing caps? will the axle shafts pull out with a slide hammer? cheers.

i'm geussin no one's done this before? haha. cheers anyway
 

Kernal

New Member
Joined
Jan 18, 2008
Messages
692
Reaction score
5
Points
0
Location
NSW
Members Ride
......
hi, i have a vt v6 series 1 with a single spinner 308 diff. Im looking to get a 346 LSD but everyone keeps saying i have to get a series 2 tailshaft. Can someone please explain why? and is there a way around it?
 

Immortality

Can't live without smoky bacon!
Staff member
Joined
Apr 15, 2006
Messages
22,477
Reaction score
19,935
Points
113
Location
Sth Auck, NZ
Members Ride
HSV VS Senator, VX Calais II L67
VTs1 has the BW78 VTs2 has the BW80. i think with the BW80 they changed the driveshafts to the rubber donut setup
 

17UCK!

New Member
Joined
Sep 11, 2008
Messages
272
Reaction score
2
Points
0
Members Ride
vs III commodore ute
how much are brand new diff gears? compared to second hand eg. 120 or wat ever old mate payed from wreckers
 

psivyv6

New Member
Joined
Dec 16, 2008
Messages
476
Reaction score
0
Points
0
Location
tasmania
Members Ride
ve ss sportswagon!!!
hey guys i own a vy v6 commodore ute and am after some diff gears and a spool i found this on ebay can any1 tell me if it will fit please? the seller was unsure to start with but now recons it will, and also i think mine has 3.46's in it stock and it revs about 2400rpm at 100kms would 3.89s b too high or would 3.73's b better? i would love any help at all please
 

padrickz88

Rick =]
Joined
Dec 15, 2005
Messages
1,555
Reaction score
38
Points
48
Age
35
Location
sunshine, melbourne
Website
www.facebook.com
Members Ride
VN V6, nothing special
Im just guessing here but im pretty sure that centre and diff is for the bw78... and i was thinking this because he said its for falcons and commodores (i dont think ford used the bw76 or 80) and the point its a 3.89 ratio, i may be wrong but i thought the 3.89 ratio was updated with the 3.91 in the bw80 series?

Im most likely wrong :)
 
Top