I kinda got stuck installing a "lock up" th-350 where a non lock up trans used to go. I know they make a box that controls said lock up (if it's even neccecary) for a touch better milage. question is...Who makes this "miracle box" and where do I buy one? do I really need it?
This is one "miracle box", assuming the customer wants the lockup feature: http://store.summitracing.com/partdetail.asp?autofilter=1&part=BMM%2D70244&N=700+115&autoview=sku Got to have something like this, if it is to remain a lock-up trans.
A 350C [350 with lock up] will work fine forever without hooking up the electric.Not so with a 200R4 or 700R4.They must have TCC lockup or will eventually burn out the overdrive clutch pack.