[chris vickery]

Hi Grant
Herein lies the problem.
Of course, adapting directly say from engine to transmission is ideally done with a trans that matches the block, one that was engineered that way.
In the case of Cummins engines, Dodge for example uses their own style adapter to mate an auto, or manual such as a nv4500. They do not share the SAE standard (think round, evenly space bolt pattern)Instead they came up with something totally different.
On many of these trans, the bell housing covers the clutch, flywheel etc.
ASpicer 3053 deuce transmission has a SAE3 pattern short bell that requires use of a flywheel housing type adapter.
It would make sense right off to find a #3 flywheel housing. There is only one option that I have found for this but there are issues. First off, the starter mount is on the wrong side (passenger) as these housings were meant for gen 2 Cummins with a totally different fuel pump and turbo setup. I will be using a gen 1 Cummings. Secondly, it also uses huge transmission mounts that stick way out. This becomes a clearance issue at the firewall.
I would prefer to utilize stock engine mounts near the front sides like a regular motor and a rear transmission mount if possible.
Now, medium trucks on the other hand used #2 sized flywheel housings for transmission like the Spicer, Eaton or Fuller manual mated to a 5.9 Cummins.
My dillema is to find one of these housings as they appear to be more streamlined in design without the huge rear mounts and most feature a driver side starter location which I will need.
I can source an spacer to go from #2 on the housing to #3 on the 3053 as it only adds 1'' to the total length overall.
I am certainly no expert on this so I am hoping to pick up ideas from our own panel of gurus.
This is a first attempt at a re-model for me, not used to the custom world as my expertise is usually restoration.