Here are the Plans:
http://www.jegs.com/
Jegster Ladder Bar Crossmembers
Jegster Ladder Bar Crossmembers #550-40010
Jegster ladder bar crossmembers are stronger per pound, because the included
braces allow the main crossmember to be made of lighter material and allow increasing
the weld area to the frame rails. Made from 1.5'' x .134'' wall mild steel tubing.
56'' Extra Wide
Kit includes:
(1) 56'' crossmember with 2-1/2'' center drop.
(4) .188'' thick, 3-hole brackets with 3/4'' holes.
(2) bracket webs.
(2) 1-1/4'' x 18'' steel tube braces.
(2) bolts and lock nuts.
Competition Engineering Ladder Bar
Competition Engineering #247-2006
Increase traction by eliminating wheelhop
Ladder Bar Features
33" long
Best for 100"-115" wheelbases
Made of 1" O.D./.156" wall tubing
3/4" forged rodends threaded directly into tubing
Front end braces prevent rodends from bending & breaking
Double 360° housing brackets withstand brutal loads
Competition Engineering Floating Axle Housing Mount
Competition Engineering #247-2030
The use of ladder bars with a leaf spring rear suspension requires that the rear
end housing not be rigidly attached to the leaf spring. This is because the
ladder bars and the front half of the leaf spring establish two different and competing
centers of rotation for the axle housing. A floating housing mount eliminates the binding and
allows the housing to rotate properly.