Help on diff gears

[bruzza]

hi all i was lookin at getting some diff gears for the wh gen 3 but i needed some advise on them i was lookin at 3.9's but i do a fair bit of highway driving what gears would be good for performance and still keeping decent highway economy??
thanx all

 

[RVN 355]

hi all i was lookin at getting some diff gears for the wh gen 3 but i needed some advise on them i was lookin at 3.9's but i do a fair bit of highway driving what gears would be good for performance and still keeping decent highway economy??
thanx all

3.7.3 mate

I got quoted for my rebuild for my vn ss v8 stock 3.08 with new crammnion and pinoin and 3.7.3 ratio $1100 SA Trans & Diff

 

[383 hatch]

new crammnion and pinoin

That would be Crown wheel & pinion.

 

[OLS108]

That would be Crown wheel & pinion.

:hit: BWAHAHAHHAHAHHAHA

 

[AirStrike]

3.7.3 mate

I got quoted for my rebuild for my vn ss v8 stock 3.08 with new crammnion and pinoin and 3.7.3 ratio $1100 SA Trans & Diff

1.23:1 diff gears are hella tall!!!
AirStrike :air:

 

[bruzza]

yea i know 3.7s would be good, but they will make the car drink even more then 3.9's am i right? how much difference is there between 3.7's and 3.9's?

 

[IBLOWN]

i got 3.9's in mine (i know not a gen 3) and highway driving is not so comfy. theres not much difference between 3.7's to 3.9's. i got 2 mates with vx ss's, one with a tune and zorst pulling 235 rwkw doing 13.7's with only a slight traction problem, yet the other vx with mafless tune & zorst with 206 rwkw but he has 3.45's and does 12.9 1/4's. so yeah diff is well worth it. but i would go for 3.45's as its perfect for cruising.

 

[bruzza]

anyone know of a good diff shop in melbourne where i can take it down?

 

[SLugg]

3:45's are a good in the middle range

 

[Jecs]

Preston Automatics And Differentials, they are very famous and i think they were on the "Grunt Files" dvd hope i helped

Jecs