On the JT chassis I don't really see the need for a chassis brace. There is some flex in the chassis but not enough to be concerened about.
im getting a fair bit of movement when i hit the brake, pushing the seat backwards. if i can stop it moving then that force can be used to apply the brake instead of bending the chassis, save my batts etc. these wheels take some stopping from speed.
i have a new seat to fit, ill see if it makes any difference, the old one had dodgy threads on one side... oh and new diff cases too, it all counts i guess.
i hear u on the other points tho, rolland, im just bouncing ideas about.
longer suspension arms anyone?