1990 325is auto- diff

[echo]

You can change the ratio of the LSD's to anything you like using the crown and pnion gears from a non-LSD of the desired ratio.

If you are not 100% comfortable doing this get a reputable diff specialist to do it as you must ensure you have the preload etc set correctly on the LSD.

But if you already have a medium case LSD, just buy any el-cheapo open medium case diff and pull out the crown and pinion gears.

[W2WDETAILING]

Originally Posted by Ceeker

auto's 4:10 5sp 3:73. I got a 4:10 in my auto and a 3:73 in my 5sp. Even a 325i/4dr 5speed had a 3:73. Lsd-or at least the one I switched into my 318is was one.

nice i have been trying to figure out what diff i had i have a 90' 325i 4dooor auto, build date 89/11

[Eurostyle]

Originally Posted by W2WDETAILING

sweet so i guess my plans to upgrade to a 4:10 diff are out the window since i have one

BUT you can upgrade to a low milage 4:44 that i have in stock! Will give you better "off the line" acceleration, with a bit less top end.

[W2WDETAILING]

Originally Posted by Eurostyle

BUT you can upgrade to a low milage 4:44 that i have in stock! Will give you better "off the line" acceleration, with a bit less top end.

NICE but only one problem i drive on the highway way too much and that would kill my gas and i would get in trouble and need to replace my tires every week

[Eurostyle]

Originally Posted by W2WDETAILING

NICE but only one problem i drive on the highway way too much and that would kill my gas and i would get in trouble and need to replace my tires every week

At 100-130Km/h, you might need $5 more every week, if that! Remember this car was made to run on european highways at 200+...so even with a high ratio you are still good on our roads!

[W2WDETAILING]

Originally Posted by Eurostyle

At 100-130Km/h, you might need $5 more every week, if that! Remember this car was made to run on european highways at 200+...so even with a high ratio you are still good on our roads!

hmmmm...i am sending you a msg!