3.77 final drive bad idea??? In CA18DET AE86

[gtirolla]

Hey guys need help u just chewed my T series diff that had a TRD 2 way 4.77 ratio (I think) so I took it to the shop an he had a 3.77 don't know if I should or not?? My ae86 has a CA18DET in it an a f50 gearbox any help would be fantastic. Thanks Matt

[johl]

3.7 is pretty low. that being said 4.7 is generally only used for na applications. i would start at 4.1 and see how that goes

[gtirolla]

Thanks mate but where can I get crown an pinions from?? I found one on e bay an It was 5.2 but they want $800 for it

[t-nol]

weir in the states makes them, and will ship over any ratio you want for $280 Inc delivery.

[gtirolla]

Bloody legand. Thanks heaps guys

[gtirolla]

Might go the 5.13

[Skylar]

Is it a drift car? Why did it break? Maybe it's a circuit/time attack car since you're worried about making the diff taller.

Just upgrade the diff to a bigger one and worry about ratio then. Slap the 3.77 in and keep driving and enjoying it in the mean time rather than waiting for the "right" part to come up for sale.

[gtirolla]

It is set up for drift, I'm guessing it was the 5 puck clutch an the last owner was very clutch happy if u know what I mean.
I want to drift it plus take it to track days as well so I'm trying to find a happy medium. It's just the 3.77 ratio came up to day because it was the only shop that had one in stock or could even find a crown an pinion for that matter for a AE86 PLUS I'm racing at Queensland raceway an it's not what u call a huge long track

[AJPS]

dont get a 5.13

[gtirolla]

Ok, reasons??? To high?????