@Grizzly I stand corrected on the B3500 trans, it was 46RE, with new planets, governor, solenoids etc
I did locate this turnkey 6 speed auto package:
https://www.tciauto.com/6x-six-spee...chrysler-bellhousing-outlaw-shifter.htmlDon't click it if you don't want to know the price.
But still less than an Allison.
One guy did swap a ZF 8HP (my sister's RAM 1500 has one - nice) into a 67 Chevelle
https://www.pro-touring.com/threads/123590-Zf-8hp70-mated-to-sbcand programmed the CAN-bus with a Teensy (I do MSP programming as well), but he said he'd rather have gone for the PCS unit if he knew better
https://www.soundgermanautomotive.com/pcs/I'm familiar with the rabbit-holes of DIY microprocessor projects...
Re longetivity,
Engine specs (old SAE gross HP) are:
Dodge 1971/72 V8- 413-1, 4 BBL, 4.188 X 3.75, 7.5 to 1, 265HP @ 4000, 445 fp @ 2400, Sodium Exhaust Valves
So the 10,500lb Travco weighs more than the B3500 which is 5,400 empty (and I load regularly to 8,000), but the 235HP MPI 5.9 probably has >30 more real net HP.
The RAM probably makes more peak stress on the trans when loaded and climbing the same hills here, but the 413 can and does run WOT for 10-20 minutes without complaining - that's where I see the real "stress" on a MH trans coming from; any built trans that can "handle" (so they say) 500+HP for 10-20 seconds might overheat and burn after 10 minutes. This is also why I wonder when I see Travco group people putting an LS-1 or Hemi in Travcos (and they do!).
It's also why I think mods like the torrington thrust bearing, low-slip or lock TC etc would also help the MH application, even though I have a square foot trans cooler in front.
The triple-clutch TCs would likely be a good option, but add almost $1k.
It's now looking more like finding a 46RH, billet TC and adapter, built up like
https://www.transdepot.net/46RH-47RH-Stage-2-Transmission-89-95_p_847.htmlmight be the only option under $7k (for the TCI).
