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Muncie transmission support questions

Posted: Sat Jan 31, 2026 4:23 pm
by Reno Speedster
I have a Muncie transmission that I am installing. I have the special joints and rebuilt it with new bearings, bushings, and idler shaft. I also have a bracket that looks like the one in the Muncie manual but I don’t have the “U” bolts and springs. From what I can seen in the manual illustrations, one bolt attaches the bracket to the bottom of the back “bell” of the transmission. I can’t see if there is a pad between the bracket and the transmission. Also, my bracket appears to have been made and not original. The manual illustrations appear to show the original bracket fit flush to the bottom of the frame and the springs below the bracket allowed some flex. But, it’s not a great image and it’s hard to tell. My bracket is not flush to the bottom of the frame. I am also missing the u-bolts and springs.

Dose anyone have an original Muncie and bracket they can send me pictures of? Or, provide any information on the installation details?

Re: Muncie transmission support questions

Posted: Sat Jan 31, 2026 9:00 pm
by Craig Leach
Hi Morgan,
that Muncie support is most likely for a
TT because the frame is 2” thicker. Keep
in mind that it should just be a support
not a crossmember. Some hardware
stores have square cornered U clamps
But they are kind of on the thin side.
A spring shop should be able to make you
heavy duty ones. The springs may be a
hardware store item also or maybe old band
springs?
Craig.

Re: Muncie transmission support questions

Posted: Sat Jan 31, 2026 9:11 pm
by Reno Speedster
Thanks Craig, that makes sense. I can make another cross member. According to the Muncie catalogue, the u bolts that hold it on are only 3/8 diameter (the nuts are specified as 3/8-16) which are pretty easy to find. I am still puzzling about the spring size.

Re: Muncie transmission support questions

Posted: Sat Jan 31, 2026 9:30 pm
by Reno Speedster
Whoops Duplicate

Re: Muncie transmission support questions

Posted: Sun Feb 01, 2026 11:07 am
by TXGOAT2
I'd want to install original-type wooden side blocks at the stock rear pan ears. At the rear of the Muncie, I'd want a firm, but flexible arrangement to absorb the side thrusts resulting from the rear wheels encountering road obstacles and to resist upward and downward forces resulting from engine torque and braking torque and to give some added support to the auxiliary. A length of 1" OD hydraulic hose could be made into a collar for the rear of the auxiliary and attached to the support bar. The support bar could be modified to fit inside the frame rails and between the frame flanges, then wrapped in heavy inner tube rubber or old fashioned friction tape to insulate it, but hold it firmly in place. I don't think any holes in the frame or bolts would be needed to hold the support in place in the frame.

Re: Muncie transmission support questions

Posted: Sun Feb 01, 2026 11:40 am
by TXGOAT2
The 1946-1948 Ford passenger cars had a transmission to frame mount that could be adapted to make a very good mount/support for the auxiliary transmission. It is a saddle-like mount with a thick, bonded rubber center. Repros may be available. The early to mid 1930s Fords had a rubber collar / metal plate transmission mount that might be adaptable.

Re: Muncie transmission support questions

Posted: Sun Feb 01, 2026 8:43 pm
by KWTownsend
This one was mounted on the Muncie that was in my wife's speedster.
20260201_173927.jpg
20260201_174524.jpg
: ^ )