Jerry, thank you very much.  I was wondering how the bottom came off so I could get into it and maybe connect the wire back on. Thank you very much and I will try it and let you know.

Dave

Does anyone have experience in changing out the front truck/drive assembly on a Spetrum SD-45?  Mine was running rough like it had a bad connection and I took off the shell, checked the wires and the black ground fell right off the truck.  I'm not sure how to put it back or take off the truck to repair or change out. Anyone have previous experience or knowledge?  Thanks in advance!  Dave