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'86 Jimmy 4in Lift, 40’s, tons, 8.1 Swap- 700r4 said PNNNNN

This is not a dedicated trail rig, but does trailer to the destination usually. I am currently in the planning phase of doing a 52/56" spring swap, and getting back to being more road worthy.
Well the guy building my harness caught himself on fire a few weeks ago. Still has a lot of bandages on his hands and arms. He said he’s going to try and get back to work on it soon. That’s my luck.

But I am getting another big block...

View attachment 343131
Meh, boats don't interest me much. But yay for a big block?
 
The thing that was bothering me about mine lately is that I thought I had all the electrical add-ons figured out, but it seems like I've still ended up adding things on. Now I feel like I have wiring running everywhere and I'm not sure if I know what all of it is. Plus the other things I wish I had done differently.
 
The thing that was bothering me about mine lately is that I thought I had all the electrical add-ons figured out, but it seems like I've still ended up adding things on. Now I feel like I have wiring running everywhere and I'm not sure if I know what all of it is. Plus the other things I wish I had done differently.
I'm going back and labeling all my added on stuff and re-routing. I thought I could just remember what was what, but when I took the truck apart there was some head scratching as to what wire went where. So the lable maker came out and I started tagging circuits. It's not too late to clean up previous work that's for sure.
 
The thing that was bothering me about mine lately is that I thought I had all the electrical add-ons figured out, but it seems like I've still ended up adding things on. Now I feel like I have wiring running everywhere and I'm not sure if I know what all of it is. Plus the other things I wish I had done differently.

It doesn't help that your interior looks like the cockpit of an F-18 fighter jet...just saying

;)
 
Well oddly enough, I called the guy out on facebook and he is going to finish this wiring harness for me to pick up this weekend. Not real sure if I believe it, but might get lucky.



Is your wiring guy based out of Iowa? I had a similar experience with a guy. I had to call him out a few times publicly to get a response.
 
Small change of plans for a brief moment on this truck. I am going to be putting this together using the 700R4 for now. It's a good rebuilt unit that I trust 100%, and it means not messing with t-case or drive shafts at the moment. I'm going to get this thing running and driving for now unit my shop gets done. Then I'll tear back into it to possibly do a doubler and d-shafts.

Does anyone know what flex plate I need to use to bolt up the TC? The factory 8.1 holes are not lining up.
 
Say what? Never seen that combo before. What's going to happen for the TV cable or is it a manual valve body already?
 
Small change of plans for a brief moment on this truck. I am going to be putting this together using the 700R4 for now. It's a good rebuilt unit that I trust 100%, and it means not messing with t-case or drive shafts at the moment. I'm going to get this thing running and driving for now unit my shop gets done. Then I'll tear back into it to possibly do a doubler and d-shafts.

Does anyone know what flex plate I need to use to bolt up the TC? The factory 8.1 holes are not lining up.

Curious why it doesn't line up. If it must be a Allison specific pattern. My factory 8.1 flexplate bolted up to my th400, but it was for a 4l80e.
 
If you're primarily worried about drive shafts, why not grab the TH400 you have lying around? That would match everything but the input shaft. You'd be changing that anyways, right?
 

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