[SCOTI]

Originally Posted by chevy72blu

Any tips or pictures you can share would be helpful. Thanks

Obviously the most cost effective thing would be to find a pair of stock trailing arms, brackets, and spring perches. I could then use something like the CPP super track bar in lieu of a PHB. I've found a few sets of '60-66 arms. Are these the same dimensionally as the 67-72?

Yes they're the same. 3/4 ton arms are as well but they will have partial reinforcement plates on the top & bottom of the arms.

Other than cutting off and re-welding the spring perches, and torching out the factory rivets, what other fab work is involved? I assume I'll need to install new shock mounts, also.

Leaf frames do not have the same upper shock x-member as a coil equipped truck so upper mounts will be required. An alternative is No Limit Engineering's rear shock relocation kit. It changes where the shocks mount & provides better geometry. Check into their Panhard bar kit as well & compare vs ECE or CPP's set-up.

I may just rebuild my leafs with drop shackles and add a set of caltracs, but I've never really liked the way leaf springs ride compared to a coil spring '72 BBC truck I owned years ago...

Night & day difference of a swb 1/2 tons ride quality when comparing the leaf set-up vs coil in my opinion.

Are there any differences between C10 and C20 frames with reference to the trailing arm setup? I was under the impression that they are the same, but a guy on Craigslist is adamant that they are not.

69-72 2wd & 4wd Blazer/Burb frames are shaped different.
63-72 1/2 ton & 3/4 ton frames are shaped similar but I believe the C20 frames are thicker/taller (73-87 C20's are vs C10's).