I bought a ring and pinion kit for my 1953 Chevy truck to change from a gear ratio of 4.11:1 to 3.55:1 from Tucker's 6 months ago. The install kit has been on back order the whole time, and they they have no idea when they will get it. Also, they will not pay to ship the gears back. Any ideas on where I can get an install kit that will work?