wow, thats a very informative and interesting thread to read. thanks neil. surprised why i never bothered to read that thread. i think i may still just go with the AL casing and cup.
im never really good at modding things so the direct bolt ons are best for me. plus, my spider gears never had any problems, it was always just the ring gear and pinion teeth.
i think the AL cups and casing would solve the flexing and issues.
heres what someone recomended me:
http://www.rc-monster.com/proddetail...zerdiff&cat=47
http://www.greatassemblyrc.com/Differential_Cases.cfm