DaveRX1
Expert
The front arm bolt hole center is on the rear edge of the stock .060 thick out side tunnel re-enforcing plate by your foot well. The center of the hole is on the exact edge of the plate and 1 5/8" up from the foot rest (New mounting hole will be a few inches to the rear from proaction hole). You will need to add an additional .060" plate to the rear of the stock plate to support the front arm bolt and washer. Add some 3/16"x4x4" plate to the inside of the tunnel for reenforcing on the front arm. Use lots of large head steel rivits to secure the 4x4x3/16" aluminum
On the rear, remove stock steel drop mount brackets and make new ones from 3/16" aluminum.(Mount the drop mounts using 3/8" x 3/4" bolts in stock mounting holes and add steel 3/16" rivits spread around to secure aluminum plate to inside of tunnel) Make brackets wider than stock so that you can use the stock bracket bolt holes and drill new hole for rear arm mount 12-5/8" forward of the rear end of the running board heat exchanger, 1" down from bottom of exchanger fins.
Remember measure 3 times and centerpunch holes then drill once
I will try to add some more pics of install tomorrow
Good Luck!
On the rear, remove stock steel drop mount brackets and make new ones from 3/16" aluminum.(Mount the drop mounts using 3/8" x 3/4" bolts in stock mounting holes and add steel 3/16" rivits spread around to secure aluminum plate to inside of tunnel) Make brackets wider than stock so that you can use the stock bracket bolt holes and drill new hole for rear arm mount 12-5/8" forward of the rear end of the running board heat exchanger, 1" down from bottom of exchanger fins.
Remember measure 3 times and centerpunch holes then drill once
I will try to add some more pics of install tomorrow
Good Luck!