Hi, I hope this is the right forum for this. I am doing a resto mod project with my 1956 Willys Pickup. I am in the process of installing a 4.0 from a 2004 Wrangler into it with an AX15 5 speed and Dana 300 transfer case. I rebuilt the AX15 by following the FSM from Jeep Chrysler as well as a few youtube videos. All clearances are spot on. Now that the trans is together I went to bench test it and the shift lever will go through the gears although reverse is slightly harder. I can turn the input shaft by hand in 3rd and 4th gear only. 1st, 2nd, 5th and reverse will not allow me to spin