So far no luck with the third gear box. Has seemed to help a little bit, although only at a complete stop now does it loose power assist. Not sure if this truck actually has hydroboost or not (not to familiar with that system), it does appear to have a p/s fluid cooler in behind the grill, although I did blow out the lines return from pump and return from gear, to clear out any possible obstructions. Even bled the system as if it did possibly have hydroboost just in case. Waiting on a new belt to get here for fun, visibly no cracks, possibly stretched??? If this doesn't do it, I'll have to fold at this point, customer only owes 150.00 at this point, it will be worth it to me to possibly a) loose the 150.00 owed plus a new belt, this customer, and get back to work on jobs I've had to turn away due to my rack being tied up, as well as the dealership next door to me.