Happy to help when I can. Lares does a good job. They did the gearbox in my 78 F-150 4X4. They dont screw around with those gearboxes. They tear them down right on the spot to make sure nothing is broken. If anything is you dont get your core charge back which is over $200 if I remember correctly. The box alone I think cost me almost $300. Still worth it. As far as I know this is just because of how hard it is to find a good gearbox for this type of truck. Most of them are worn really bad because of hard abuse. The gearbox for our 82 bronco cost $150 with a $50 core. Those ones must be more popular. When all is said and done they are about the only place I take my box to because they do everything in house.