SteerAndStuff
Spotter Required
Have posted this on Pirate but will share here. Had a 18' 10k nice car hauler style trailer but it weighed 2800lbs alone with a 23" deck height. As I really only ever use the trailer for the rig I decided to build a smaller dedicated trailer. First I wanted it as low as possible and no wider than the rig with driver over fenders.
Initial cad drawing for some dimensions and visualization. Bugy is 110" WB and also drew a friends 124" rig to see if it would fit ok:
I scored a pair of 7k axles with bent beams for cheap. I originally toyed with making the single axle but ended up going tandem for road redundancy. If I had a bearing/axle failure could easily jack up and chain one axle and run on the other without being overloaded. Since I wanted drop spindles the width I wanted was a custom size and to buy bare beams would be around $800. I ordered 7k drop spindles and a length of 3" DOM and built my own. I found the spec for the castor to be 1.5 degree per side. I ended up doing .7 degrees since I'm not running the weight they are designed for but my springs are inboard a little more than spec too, so have a little more leverage on them.
Here was building the axles:
Start of the frame, installing spring hangers, ramp, and light provisions. Frame is 2x4x.120 rectangle tube:
Initial cad drawing for some dimensions and visualization. Bugy is 110" WB and also drew a friends 124" rig to see if it would fit ok:
I scored a pair of 7k axles with bent beams for cheap. I originally toyed with making the single axle but ended up going tandem for road redundancy. If I had a bearing/axle failure could easily jack up and chain one axle and run on the other without being overloaded. Since I wanted drop spindles the width I wanted was a custom size and to buy bare beams would be around $800. I ordered 7k drop spindles and a length of 3" DOM and built my own. I found the spec for the castor to be 1.5 degree per side. I ended up doing .7 degrees since I'm not running the weight they are designed for but my springs are inboard a little more than spec too, so have a little more leverage on them.
Here was building the axles:
Start of the frame, installing spring hangers, ramp, and light provisions. Frame is 2x4x.120 rectangle tube: