Climax long travel question

[EazyDoesIt]

I bought a long travel kit last year and am finally getting around to installing it. I did the front today but have a question on the back. I’m using the RE1430 2.5 springs and I have a full hard cabs cab. Would I benefit from from moving the rear shackle location due to the heavy weight of the full cab? I’ve seen that change mentioned adjust payload in the forum.
Thanks in advance

 

[Max A.]

Common question! mount the rear bushing sleeve in the frame leaving about a 1/4 of an inch between the old bushing sleeve and the new one. Similar to the picture in the directions.