This is my bucket. 383 727 9 inch. Rear spring are super stock 3200 pounds. Tires are 255 60 15 on cop wheels also have dropped front hangers. Still a little high for my taste..
I did mine on a lift and torqued them in the air. Once home I redid the rear ones on the ground...Settling maybe a little but I have SS springs and front lowering hangers...
I also have this clunk every once in awhile. Thought it was springs.Will check front spring mount. Shocks are new. Sorry for the hijack. Thanks for the info..