New to the 73-87 pickup board

[Newc1Tun]

Hey folks,

Just wanted to say hello to everyone. I’m new to this board but I'm not new to old chevys. I've had a 71 Blazer and an 80 C20 in the past. I just recently(last two weeks) picked up a K30. It's a 78 1 Ton Duelly 4x4 double cab with the 350/SM465/NP205 running the D60/D70s. I've attached some pictures for your perusal.

I have a couple of questions that I'm hoping you all might be able to help me with:

1. I need to replace the rubber guide channels for the front windows. It takes 2 hands and some elbow grease to roll them up and down. Who makes a good set that will last. Or does it make sense after 30 years of use to replace the whole mechanism?

2. Wiring diagram. Do any of you have a wiring diagram? The PO was in the midst of adding on an AC system that I need to remove. But currently the heater motor doesn't work either.

3. I'd also like to, some day, do a SM465/TH400 swap. Besides the standard adapter and cross member hassles, are there any other major issues?

Here she is:



Hope you all have a good day...