Is there a manual trans for the M104?
I found a Viper 6 speed for $700.00
I am certain teh pontiac GTO uses the same Tremac---
You can use a Ford Tremac but they are weak but on a stock 300e it should last...
The five speed was available in Europe.
The 1990-1994 R129 300SL / SL320 M104 was available in the USA with a five speed manual as a base transmission.



