VF SS diff gears

[Brandon22]

hi there just a few questions about the diff gears I’m hoping someone can help me with .

I have a vf ss storm Ute got the usual mods otr exhaust ,woild Like to know what’s the best gear ratio to go with , it’s an auto and will be getting cammed down the track.

ive seen people talk about 3.7 3.9 and 4.11
I have no idea as it’s hard to find out info and also do you just change the gears in the original diff or do I need to get a whole new differential

cheers fellas

 

[daves8]

I just upgraded my 2.92 to 3.45 and glad I didn’t go any higher ratio than that

 

[daves8]

Also I changed the whole diff, and my Calais was a single spinner so upgraded to LSD.

if you already have lsd just do gears

 

[losh1971]

If you have an auto, then a "relatively" easy upgrade is a manual diff, and swap the entire thing.

 

[MrBags]

3:45 is where I went in my auto, also glad I didn’t go shorter.
If the budget allows it’s a good time to whack a truetrac in there too.

 

[Brandon22]

I just upgraded my 2.92 to 3.45 and glad I didn’t go any higher ratio than that

Did it make a big difference mate ? I’m not aiming to do burnouts I just want abit of oomff out of it I’ve heard it should make some sort of difference ?
cheers

 

[daves8]

Did it make a big difference mate ? I’m not aiming to do burnouts I just want abit of oomff out of it I’ve heard it should make some sort of difference ?
cheers

It did make a difference off the line and mid range acceleration, however (and I appreciate this next comment may be ridiculed) I installed a throttle controller for shits and giggles over the weekend, I notice more down low out of that than the shorter diff gears.
The faster opening throttle body gives better low down than the diff.

 

[Banjo79]

I think coming from 2.92, you'd roughly increase wheel torque by 10% with 3.27, 15% with 3.45 and 25% with 3.7.

 

[Brandon22]

It did make a difference off the line and mid range acceleration, however (and I appreciate this next comment may be ridiculed) I installed a throttle controller for shits and giggles over the weekend, I notice more down low out of that than the shorter diff gears.
The faster opening throttle body gives better low down than the diff.

Ok mate thanks for that, you think I’d be ok to just change the gears for now as I would rather save the money for a cam package first before getting a whole new diff , and best gears to suit my car would be 3.27 or just go abit more ?
Cheers

 

[losh1971]

Ok mate thanks for that, you think I’d be ok to just change the gears for now as I would rather save the money for a cam package first before getting a whole new diff , and best gears to suit my car would be 3.27 or just go abit more ?
Cheers

Save money for a cam, do you know how much changing diff gears costs?