m20 flywheels dual & single mass

[Jahman093]

Alright i want to find out what years/models had the dual mass and which had single mass.
The reason I'm asking is because i bought a flywheel from a member on here stating it was from a 325i. So i bought it thinking it was a single mass but wasn't. Then today went to local junkyard who said they had one off a 1990 325i and it was dual mass as well.

To my knowledge I was sure that eta's had the dual mass and I's had the single mass flywheel.
Can anyone chime in and let me know?
thanks!

also if you have a single mass flywheel for sale PM me

[MR 325]

All M20B25 5 speed cars had a single mass flywheel. No question.

Eta was made with both a single and dual mass flywheel but I am unsure of which years got which. The Eta single mass flywheel is still thicker and heavier than the 2.5 single mass though.

[nuoctuong5]

http://www.r3vlimited.com/board/showthread.php?t=215361

"9/83-4/86 etas: SINGLE MASS Bellhousing depth- 6 1/2
5/86-6/88 etas: DUAL/TWIN MASS Bellhousing depth- 6 7/8
325i: SINGLE MASS Bellhousing depth- 6 1/2"