VK G70 Axle

[SwitcH 304]

Hey guys,

My VK has a G70 diff, (2.60:1). It's not a ratio i've come across before and i'm wondering if there's a reason behind this or am I just ignorant?

[Colby844]

yeh thats a good question cause its kinda at the deep end really - i thought 2.78 was far enough that way.. ive seen it twice before a VK Calais with the digital dash etc and one under the ass of a VB SLE harshly dumped in a wrecking yard.. i think the guts is offset the same as the 2.78 for the large pinion but wont suit 3.08 gears so i guess thats kinda a hassle if you'd like to change from 2.60?

[SL/ENUT]

2.60:1 ratio is usually the ratio for the V8 Vks with auto. Its to do with fuel economy

[SwitcH 304]

Yeh, the car was originally a V8 auto funnily enough, has a 5-speed thrown in it now. I've only driven it once, without speedo or tacho so I can't comment on highway revs, certainly better than my old M21 though. Thanks for the insight.....

[Colby844]

What type of 5speed did you use? it does appear that 2.60 was the VK 5litre choice back in its day usually LSD as well? i know the VK cop cars got 3.08 LSD's

[SwitcH 304]

I didn't build it, and the guy who I bought it off said it's a Tremec T5, which doesn't make much sense. Any way of telling?

[Colby844]

i dunno dude but it sure sounds alright to me umm i would climb underneath and have a look at its size and shape maybe take a pic of it as best as ya can and post the pic on here someone will know.. i had a workmate who i thought had an everyday 6 cylinder VK until he told me the speedo was in MPH - i thought yeh right but it really was a VK dash in MPH!! so i took a pic of it and put on old holden forum and that had people stumped only thing was maybe it was an export model?

[SwitcH 304]

Finally got off my arse and took a photo of the trans.

Will try to upload pic from image basket. Don't shoot me if this doesn't work...

http://www.yourimagebasket.com/view-...ize_resize.jpg

[SL/ENUT]

Hmm, to me that pic looks more like a standard T5 5 speed box.

[SwitcH 304]

Were they the standard on VN 5.0's?

[delcowizzid]

i had a 2.62:1 or 2.72:1 in my vk 308 with toyota 5speed loved it car would go so fast it was scary used to try and fly way before top speed was reached great ratio for toyota box.