The best thing to do is remove the transmission motor mount. Then get a half moon wrench 9/16 1/2 combo box. That will also get the upper nuts off. To remove the t-case you are going to drop the front of t-case and the slide the tail housing down. You will need to drop the exhaust system. You still haven't gotten to the hard part of removing the transmission. The torque converter bolts are going to be a challenge. Remove the starter the bolt is 5/8 and the nut is also 5/8. You will need to remove all 9/16 bolt heads on the upper part of the bellhousing. Thats going to leave two 5/8 bolts on the lower part of the bellhousing, first remove the oil filter. Back the two bellhousing bolts out to about 1 inch and remove all the inspection cover bolts. using a pry bar, the transmission back until the cover comes out. Push the transmission back to the engine and then remove the 4 18mm torque converter bolts. Then remove the two bolts and transmission. If you don't do it this way, You spend another 2 or 3 hours removing the motor mounts and brackets.