BenzWorld Senior Member
Date registered: Oct 2006
Vehicle: 1965 220SE sedan (finnie) with 450SE conversion, 1964 220SE coupe project, 1966 300SE coupe
Location: Brisbane Australia
Mentioned: 2 Post(s)
Quoted: 33 Post(s)
You are right - it is not essential to take the piece of tunnel from the crossmember back. The reasons I did it this way were:
1) I wanted to mount the floor shift as per the factory position - this was incorporated into the crossmember pressing of the 108
2) My sedan had a driveshaft centre bearing further rearward than the W108. So I could have just modified the finnie tailshafts to use the original centre bearing location. But I chose to take the longer section of tunnel so it would have the W108 centre bearing location, so I could also use an unmodified W108 tailshaft. Interestingly, my 1967 250SE coupe has the centre bearing in the location of the W108, so I would not have to do it that way.
I also could have 'unpicked' the centre bearing sheetmetal carrier from the W108 tunnel and just plug welded it in where required.
There are many ways to skin a cat. Mercmad may have some pics of tunnels he has done - he only goes to the crossmember. Good luck.