ooo alrighty haha i see what your sayin now im jus a newbie to the old sdchool "enclosed" driveline so bear wit me not understanding some things an thank u soo much for explaining. i want to be able to drive on highway but the reason i wanna change trans is because i heard the stock 3 speed trans will NOT hold up to high speeds of any kind like highway. an the old tube design jus seems to b so messy but sturdy an designed well i guess. im jus wanting it to be more driveable with a lil more update to it to be able to purchase parts an all for it if anything was to break or what have ya.