Axle ratio for Jatco 5 speed Gearbox

[albertsew]

Hi ..... anyone know wat is the axle ratio for Jatco 5 speed Gearbox ? Currently mine is 4.x, need to find one that is the right match for Jatco 5 speed gearbox else will be jerky and lack of power. How much does a 2nd hand axle cost ? Any recommendation where to get it ?

 

[Vincent Hor]

Is yours a 2.0 or 2.5cc. Just for info. my 2.5 M50B25 with ZF5HP has a rear diff of 3.23 on a friend's car a local M50B25 with 4sp GM g/box the rear diff is 4.10

Maybe you want to check this out for more info about rear diff:

http://member.rivernet.com.au/btaylor/BMWText/technical/ChoosingADifferential.html

 

[albertsew]

Mine is a 2.0 cc ......auto !

I thot only manual using rear diffirential of 3.23 ?!

 

[Zoggee]

Kaki Nang....!!!

According to my ETK database....If you are running on A5S310Z and A5S300J Jatco AutoTranny.

M50B20 the rear Diff. Ratio shud be 3.64.

 

[Vincent Hor]

My M50B25 with ZF5HP had 3.23 rear diff. Don't know why but it came imported like that. A bit slower on take off compared to my friends M50B25 with 4.10
However highway on 5th gear 110kmh at 2,000 rpm only. Very nice cruiser