Axles

This kit is primarily designed to use axles with a spring center of 31.5”.  Dodge axles have a spring spacing of 32.5” and will work if the leaf spacers (included) are used on the inside.  Any other axles can be used, but will require new perches welded on (included).  I would recommend welding them on with a spring spacing of 31.5”. 

Chevy

73-87 Chevrolet Pickup
73-91 K5, Suburban, and 3+3

Ford

67-79 F150 supercab only, F250, and F350

Dodge

74-93 Pickups and Ramcharger

Jeep

73-91 Wagoneer
87-95 Wrangler (YJ)

International

71-80 Scout II

Springs

This kit is also designed to work with several different spring lengths and widths to give the Buyer more options.  The kit will fit a maximum width of 3 5/8” at the bushings (common with 3” wide ford springs), but includes spacers to use the more common 3” wide bushing (common on most domestic 2.5” springs).  The kit assumes a 9/16" bolt for the spring eyes. The kit will work with Springs varying in length from 50 – 57” long including but not limited to:

52” Chevy rears (common in the 73-87 era in ½ ton’s)
56” Chevy rears (also common in the 73-87 era but usually in the ¾ ton’s and 1 ton’s)
57” Ford Rears (found in most years of Ford trucks, 4wd are 3” wide, 2wd are 2.5” wide)
Jeep XJ rears
Jeep wagoneer rears
Ford explorer/ranger rears
Chevy S10 rears

Of these, the kit was tested with the 57” Ford rears from an 88 F150.  They gave about 12” of lift over stock with the Spring over the axle.   Several of these spring choices have the option of aftermarket lift springs (like the 52” Chevy’s) that can easily gain more lift if desired.  There is probably a minimum lift amount of about 6” that can be gained with a Solid axle Conversion, so if you don’t want that much, this probably isn’t for you.