Transmission mount bolt length and pitch?

DUK · 03-16-2007, 05:00 PM

I'm installing wevo motor mounts and am wanting to order new bolts for them. What length and pitch are the bolts for the transmission mounts? TIA Duke

rcecale · rcecale's Garage

M12 1.5 mm bolt.

Pelican Parts No: 930-375-317-00-M100
Listed here.

Randy

ninesixfour · 08-07-2008, 04:25 PM

What about the diameter of the large domed-shaped washers? Anyone?

arrivederci · 08-07-2008, 06:46 PM

Warning - the bolt length seems to have varied by year. Read the following threads for more details. You may be safe with the superceded part number and the specified washer (12.4 x 34 x 5 mm).

Tranny Mount Bolt Size?

Transmission Carrier Bolt Size

ninesixfour · 08-08-2008, 03:41 PM

Quote:

Originally Posted by jpinkert

Warning - the bolt length seems to have varied by year. Read the following threads for more details. You may be safe with the superceded part number and the specified washer (12.4 x 34 x 5 mm).

Tranny Mount Bolt Size?

Transmission Carrier Bolt Size

I saw that measurement in another thread and maybe it's the solid mounts I'm using but 34mm in diameter isn't even close to being wide enough. I bought a 2" which is 50.8mm and it's not wide enough by about 2mm on each side.
As far as the bolt length is concerned, 65mm is correct.

arrivederci · 08-08-2008, 04:41 PM

Quote:

Originally Posted by ninesixfour

I saw that measurement in another thread and maybe it's the solid mounts I'm using but 34mm in diameter isn't even close to being wide enough. I bought a 2" which is 50.8mm and it's not wide enough by about 2mm on each side.
As far as the bolt length is concerned, 65mm is correct.

I believe the 34mm washer is not the cupped washer you're thinking of. With the superceded part number, you need both washers. The 34mm washer, I -think- actually acts as a spacer so that you don't thread the superceded longer bolt in too far and strip your transmission mount.

I went to a local shop and dug through their "bolt buckets" till I found an older, shorter bolt for my '72.

ninesixfour · 08-09-2008, 06:22 PM

I ended up having one made out of a scrap piece of metal and used an outside diameter of 60mm. It installed perfectly.