VT LS1 6spd how muchs revs at 100km with 3.9 diff

[lmacpherson]

Hi got a vt ls1 6spd thinkn of putn a 3.9 diff in but want to know what it will rev at doin 100km in 6 gear. Currently got standard diff 3.45 and does under 1500 at 100km in 6

[ryan101]

i read in a few post's up it would do about 1700 at 100km/h in 6th

[ashbox]

^^^ somewhere around that mark

[Thessman]

What state are u in? If you replace the diff I would love to buy your 3.45 for my vx ss 6 speed. If it fits...

[ashbox]

^^ take it your diff is on its way out, cos you'd already have the 345's

[lmacpherson]

Sydney, Cronulla but if you want it I know a good cheap courier company
its only the centre but

[johnno010684]

dont the vx clubsports have a different ratio to the vx ss's?

[Cameron P]

yes they do... but none of them have a vx clubsport

[immortality]

standard SS manual ratio is 3.46, auto is 3.07

clubsport ratio is 3.73

[johnno010684]

i was just wondering for myself whether it would be worth me changing to 3.9's or even 4.11's, im just sick of sitting on 100 in sixth with exhaust drone.

[GM GEN3]

i have 3.9 gears in my vx ss 6 speed if im doing 100 im only in 4th gear it sits on about 2500 but if i was in 6th gear it would be like 1500 to 1800 its really not bad well worth it heaps quicker of the line mate