I might revisit this and re-attach the battery box to the upper frame instead of the front crossmember to fix that issue, but for now it's been working fine. The only thing I don't like about this position is that the batteries are now unsprung weight. I did this to relocate the batteries as low as possible to keep the center of gravity low. While I was up here, I made a steel box to hold the dual 12v 20AH SLA Batteries and attached that to this same crossember. I then welded bolts to the c-channel that the steering box can be fastened to. So I cut a section of the crossmember out and sistered a piece of 1" c-channel to it. I bolted the rack and pinion to the steering knuckles and found that it was going hit the front crossmember. I marked on the frame where the steering column was to be centered and then took the body back off. This required cutting out the body a bit to fit. I had to put the body back on briefly to locate the steering column. I then spaced the wheel out using cut off section of the stock frame, which slipped tightly over the CPVC. The tubing acts as a replaceable bushing and actually fits very nice and tight in both dimensions. I simply slipped a piece of 1/2" CPVC tubing over the spindle and pressed the 5/8" wheel hub over that. Once the body is off, I'll have to go by my notes from this section to make sure everything ends up where I intended it.Īlso, I adapated the stock front spindles to fit the new wheels. Once I was happy with where it would be sitting, the body would be coming off. The main point of this mock up was to get a good idea of where I'd be locating the rear axle in relation to the body. This thing will be capable of doing 15+ MPH when I'm done, so keeping the center of gravity low and the wheels spread out to prevent rollover was a consideration. I wanted to stretch the wheelbase a couple inches and widen it as well. I got it sitting level on my workbench using a car jack, then supported the new mods with jack stands so I could adjust the position of the new axle. These shots shows my initial mock-up of the new wheels. Once you've got your big pile of parts, it's time to get started! Plus all the other parts used on the previous parts of the build, like batteries, springs, ESC, etc. and probably a few other things I'm forgetting, but I'll add them in later if I find something I overlooked. A few people have asked for a parts list of what all I used on this build, so here it is.ģ/8-24 Threaded coupling (best to order through Fastenal or other local specialty fastener store) First thing to do is get all the parts on hand.
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