It sounds like you are looking for the Hopkins Trailer Connector Adapter - 6-Pole Round to 6-Pole Square # HM47415. This adapter has an overall length of 10 inches. view full answer...
We do carry a trailer hitch for the 1996 Toyota T100 pickup. The hitch you are looking for it the Curt # C76VV. This is a class 3 hitch with a 2" receiver and is rated for 5,000 lbs towing. Our site has it listed under "1996 Toyota T100" Instead of "1996 Toyota T100 pickup". I have confirmed with Curt that this is made for all models of the 1996 T100 provided it is a 4 wheel drive model. view full answer...
Yes, you can fit Yakima round bar roof racks into the Rola tracks you mentioned. The track dimensions of this are the same as what Yakima roof rack components require. To do that you will need 4 of the Yakima Control Towers # Y8890027, 2 sets of the Yakima Landing Pad # Y00221, and one set of Yakima Crossbars. For 58 inch bars you can use # Y00409, for 66 in bars use # Y00410, or for 78 inch bars you can use # Y00411. view full answer...