1989 325iS Automatic - What Diff?

[Stu]

+1 to everything Bret just said .

Plus I'll add that although the "s" designation meant that LSD was standard on the 6cyl cars it was still only an option on the 318is .

So this means that all "is" or "es" came with LSD as part of the "sport package" but the 318is came with an open diff unless the LSD option was selected .

So true that by now many diffs could/may have been swapped though .
Recently while in a boneyard I came upon a tarted up (read fanboy) 318is and discovered it had an Etas 2.79LSD installed in it .
Can you imagine how slow that thing would have been . :D
Guess the fanboy thought the LSD would be a good upgrade but neglected to inform himself about the actual ratio . :D

Teag--I ran a 3.25LS in my 318is for a while after toasting the 4.10, it was slow to say the least. Sort of made it a wide-ratio 4-speed. : ) I'm sure a 2.79 would be much worse.

[Teaguer]

Teag--I ran a 3.25LS in my 318is for a while after toasting the 4.10, it was slow to say the least. Sort of made it a wide-ratio 4-speed. : ) I'm sure a 2.79 would be much worse.

Haha , yeah I could not imagine my 318 with a 2.79 in it .
Could probably use a hourglass to time the 0-60 . :D

[reelizmpro]

Should be 4.10LSD. 87-88 325iS Auto's had 3.73LSD.

[Rigmaster]

Should be 4.10LSD. 87-88 325iS Auto's had 3.73LSD.

Welcome to the party!!

You're a little late though, but welcome!


;)