Transmission Support

[vanapplebomb]

I have a powder coated frame, and don't want to have any more stuff welded onto it, so a solid mid mount is out of the question. That leaves me with two options...the front transmission straps, or the Mohr bolt on style mid mount. Which of the two support method do you think is more effective at taking stress off the nosecone?





Or...

[MadMike]

I've done both but I'd get the Mohr style and use a stock front mount too with solid rear

[clintonddk]

I use a Bug Pack rear solid mount with a home built traction support tied into the shock towers along with a Berg mid-mount and a solid mounted front mount that instead of bolting to the nose cone it ties into the mid-mount.

[vanapplebomb]

Nov 8, 2013 8:53:48 GMT -5 MadMike said:

I've done both but I'd get the Mohr style and use a stock front mount too with solid rear

What I got right now is almost what you described. I have a solid rear mount with a Rhino nosecone mount...same basic thing, just stiffer.

[vanapplebomb]

anyone care to explain why they would pick either of these options over the other?

[vanapplebomb]

Just looking for opinions since they are pretty much the same price. I am familiar with the straps, but I don't have any experience with the mid mount...I have not even seen one installed in person before

[dubfreak1]

That is pretty similar to my plan on the 67 drag car. My 68 has a weld in midmount and solid rear. I've tried it with and without the stock front mount and the stock mount does help with a smooth launch. I will also use a Rhino front mount on the 67 as it is stiffer. My thought is to allow the midmount to position the trans fore and aft and using the Rhino mount allows a little flexibility in positioning at the nosecone.

When I bought the Rhino mount at BnL, they said "that is one of the best parts CB has ever made"

[rwk]

I use a Berg rear engine support and stock HD front trans mount, rear engine support stops the engine down thrust at the SOURCE, you preload it a little,takes all load off the ft trans mount, helps prevent wheel hop some. Most later busses use a rear engine mount also, along with there top and front trans mounts, maybe because of higher hp and torque also?
RK

[bren]

What kind of vehicle is this going in? How will it be used?

Seems to me the strap mount would protect a off road vehicle better.
The moore style mid mount is designed to protect against engine torque.

[vanapplebomb]

Thanks for the coment Bren. The topic was running a bit dry for a while.

It will be mostly off road.

Out of curiosity, why do you think a strap will protect it better off road, and the Mohr mount would be better for torque? I have a solid rear mount, so I guess I don't see it helping much with the transmission rocking like most do with flexible bell housing mounts.

[vanapplebomb]

So your saying the Mohr mount is for people like this guy who has flexible bell housing mounts?

[bren]

My thought is the strap would protect against movement in all directions. Mohr mount only protects against movement in one direction.

[vanapplebomb]

Would fore and aft movement even be an issue with a solid rear mount?

[bren]

I was not thinking fore and aft.
Mohr mount prevents the front of the tranny from moving up.
I just envisioned banging around off road. Front of tranny could try to move up, down and sideways.
I would think strap would do a better job helping in those off road situations.

[vanapplebomb]

Hu, that side to side action never really crossed my mind to be honest. I bet that is a huge deal for the swing axles guys! I can definitely see where straps would be advantageous in that case, Bren. I wonder how big of a deal it is with IRS transmissions though. They wouldn't be subjected to the high of side loads since the CV joints are allowed to plunge. So, most of the side loads in the IRS case would come from bashing into objects that try to knock the vehicle sideways...like hitting a rock with the outside edge of a rear tire?