Due to the size of the wheels and terra tires donated by Don West, we had to replace the IRS spring plates and torsion bars with shorter ones that mount flush with the torsion tube out of a swingaxle suspension.  we used a floor jack that was chained to the frame to rotate the springplates for install and removal.

we had to shorten, cut the 'C' and drill the "new" springplates to fit our application