Seems this is the proper spot for a new build. I picked up up my 2 cheap fat bikes the other day. The jack shaft parts are in the mail and my friend gave me back the High Roller i lent him so he could see if a recumbent was right for him (apparently it's not). The High Roller is going to be harvested for its adjustable bottom bracket, it,s new chains and the very nice job Nobling did on the handlebar stem. The wheels will be used for a future trailer project so nothing will be wasted. I am off to some local trail's for 3 day's - if the boss (wife) agrees - then I will start and yes photos will be taken . I do have a question regarding the final drive though before i start. It is going to be a modified Loderunner using 3 four inch wide fat tire's. The jack shaft will transfer power over to the left rear wheel. That gives 1 wheel drive. The question is if I use the 2 rear wheels I have on the back and have the jack shaft run power to the right wheel also would the the freewheels offer the same effect as a differential when turning. ie the outside wheel turns faster than the inside wheel so would the free wheel mechanism just ratchet around corners but offer 2 wheel drive in a straight line. Also to note is the jack shaft will have a free wheel on each side in addition to the ones on the rims. i know it's a bit redundent and will add a pound or two to the overall weight but I don't care about the weight very much. this is to be built for off road and gravel , hence the fat tire's.