Front crossmember swap, PS, PB, front sway bar, rear 12 bolt, 700R4, and 350 all from an eighties model pickup. retained stock frame, best thing I ever did. 5 on 5, running a 3.5/5 drop with 20's. or as previous posted, measure carefully and make the swap. Either way, all the best with the build.
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62'

3.5/5 drop SWB Fleet, PS, PB-Dsk/Drm,350/700R4
08' Chevrolet Silverado CrewCab
05'Toyota Tacoma Prerunner SR5