My diatribe on donor parts for the disc brake conversion
https://forum.ih8mud.com/threads/tech-talk-ultimate-40-55-series-disc-brake-conversion-parts-thread-work-in-progress.1039423/
Skip anything that has you reusing course spline birfield outer axle and uses adapters to fit GM calipers and rotors. Like hard pass skip. These require you to re-use your course spline (low strength) outer birf joint and free-wheel hubs, both of...
Follow-up question:
Is there a compatible alternator with an internal voltage regulator? It seems like that could save me a LOT of time and frustration.
The later model instrument clusters are significantly different in terms of wiring. My '81 is modular with a single multi plug connection, for instance.
A leaf spring can be designed to flex well but they need to be specific. A spring for a soft top 40 without any accessories will need
a different rate than a 40 with a hardtop, roof rack, bumpers, winch, aux gas tank and a tire carrier. There's...
If you stay with the factory wheel width and offset and also skinny tires (35x10.5), I believe you can get away without cutting the rear wheel opening as the tire should tuck up inside the lip. If rubbing the inner wheel well bothers you...
My first thought, is where are you finding 34" tires...haha
I don't think you'll have too much issue, rubbing in the front of the back wheel well is the first place you'll have issues...