where can i find goo directions and pics of how to make a lockup switch for my late 06 48re? i have also heard that a 2nd to 3rd shift in lock up is hard on it but could you unlock to shift or let off the throtle to be easier? what about locking once your moving good in first? just tired of pulling a trailer up a hill and having to deal with major slipping (just not being locked) until over 30mph