I have been really thinking about what powertrain to use in my rig. This is really not a Poll, just more of a thinking out loud. I have to get this nailed down because I may have to modify my transmisison opening like MikeR did. I simply have too many options.
Furthermore, I am starting with a bare frame. No powertrain mounts are installed or installed correctly now so everything is coming out. Other than the enlargement of the transmission hole and tranny hump modifications, all options will require the same amount of work to install.
I'm building this for a daily driver and for the wife to use. I have a big bad rig to go deep into the mountains and get firewood. I really do not need another one.
Here are my options I have in my shop right now.
Cummins 4BTA, 4L80E bolted to a Toyota split case.
Missing $900 computer for 4L80e
No room for front driveshaft to go past the transmission.
Rear Transmission opening in the cab will need opened 2" additional inches. After measuring, a 2" body lift should allow the cab to clear the T-case
Chevy 350, Turbo 350, NP205
Already bolted together and ready to go.
After measuring, a 2" body lift should allow the cab to clear the T-case
2F, H42, 4sp T-case
1984 2F with a 1978 4sp and Tcase
Chevy 350, Marks Adaptor, H41, 4sp Tcase.
Engine was pulled for DOA
The H41 is like new inside, Marlin checked it out.
2F, H42, RockBox, Orion 3:1
1981 2F with low miles
Orion pops out of gear, like all of mine do.
Heard rumors of the Rock Box breaking shafts. It has not happened to mine.
I also have a 2F and a 3FE for the 2FE I was going to build as well as Automatic and T-case from a 1992 FJ80. I woudl need to get a cam ground and build this engine.
I'm really leaning towards this
Chevy 350, Marks Adaptor, H41, 4sp Tcase.
Engine was pulled for DOA
The H41 is like new inside, Marlin checked it out.
But, after traveling with Mark A and Rob T on the way to the FJ 45 run a few year back, I was very impressed with how thier F motors ran in the mountians.
Your opinions?