Howdy,
Inspired by the cool jackpads from Winter, I made my own out of 1" X 1 1/4" 6061 T6. I did the whole deed with out much more than a drill press, carbide burr, and a miter saw. The mounting holes are 15/16" OC and I used AN4-21A bolts. I had to make one spacer at about 17/64". The AN4-31A bolt only has about a half inch of threads so I reamed the hole halfway and tapped the rest. That way the shank of the bolt is in shear. I made a sleeve out of 3/8" OD 4130 reamed 1/4" ID to take advantage of more bending resistance and so I could torque the bolt into place for jacking. The pad weighs less than 2 oz. and fits under the wheel pant with the jack bolt removed. I bought an aluminum Porsche jack on Ebay which weighs less than 3 lb. I'm gonna throw that in a bag for the baggage compartment on cross countries. With a spare tube and a CO2 inflator, I'm ready for tire trouble.
Ed Holyoke
Inspired by the cool jackpads from Winter, I made my own out of 1" X 1 1/4" 6061 T6. I did the whole deed with out much more than a drill press, carbide burr, and a miter saw. The mounting holes are 15/16" OC and I used AN4-21A bolts. I had to make one spacer at about 17/64". The AN4-31A bolt only has about a half inch of threads so I reamed the hole halfway and tapped the rest. That way the shank of the bolt is in shear. I made a sleeve out of 3/8" OD 4130 reamed 1/4" ID to take advantage of more bending resistance and so I could torque the bolt into place for jacking. The pad weighs less than 2 oz. and fits under the wheel pant with the jack bolt removed. I bought an aluminum Porsche jack on Ebay which weighs less than 3 lb. I'm gonna throw that in a bag for the baggage compartment on cross countries. With a spare tube and a CO2 inflator, I'm ready for tire trouble.
Ed Holyoke