Just wondering how much i can tow with my 91 jimmy. Ive got a 6" lift 37's and 14bff with 5.13 in the rear with disc brakes. Its got a stock 700r4 but only has 40,000 on it. The engine is orignal with 155,00. Also upgraded the rear drivline and u-joints. Does have an engine oil and tranny cooler. Im renting a toy hauler trailer for labor day and not sure what to expect. The trailer is 4980 empty and rated 7000 loaded.