SIMP Thanks again on the reply. Looking for info on failure mode on the "eating" parts. Was this in low range out in the mud or pulling your heavy loads in high T-case range but lower gears on your 7155? Was this on the intermediate shaft between the Trans to T-case or the T-case to the rear axle or to the front axle etc...
I do expect to drop in the Big Cam as you have and the 50000 HEMTT case, the only difference is I do think I am going to use a manual transmission with a manual shifter maybe an RTO-16908LL or something like it. I know you would cringe at me saying this having much more driving experience with big rigs than I will ever will have but this seems more my style. I am also not going to be driving this regularly. An Eaton fuller 10 or 15 speed looks nice to me and I think I can figure out the shifting. Your 7155 looked very compact (short) for what it is (CAT being 36" long in comparison to the RTO at 33") not knowing bell housing variances and exact shaft selections It is a close toss up and would use similar shafts...?
Added question. Which gears are you finding you like to start driving in when pulling off from a stop when you are unloaded. Start in 7th is what I thought I heard in your video. What is the transmission ratio for your "sweet start gear".
On a 9 10 or 13 you are going to have to start off in 2nd or 3rd anyway. Otherwise you will be grinding without enough speed up. The CAT I could start off as high as 8th. But the cat is a whole different beast
Most 9, 10s 13s can swap on an SAE 2 housing to match the small cam or 6cTa bellhousing The CAT is only available in SAE 1.
The cat is near double the weight or a 9 10 13 spd and much bigger.
I ran the transfer case in high and low and still had issues.
Most of the 9,10,13s are going to be 1710 outputs available. You would have to remove the T1138 Input yoke in place for a companion yoke used on the other outputs. And use a companion flange to attach to the 1710 shaft. This is the same thing used on the 938 T1138 to front tandem axle.