This is a 3 part question. I am going to replace the 4 speed trans in jgano's 83 CJ7 4.2L with an AX15 5 speed from my 90 YJ 4.2L. 1st: Is the #1 gear in the 4 speed a lower gear ratio than the #1 gear in the 5 speed? If the 4 speed is a better offroad transmission than the 5 speed then I will not be doing the swap but I will still rebuild the trans. The 1-2 gear syncro's are gone in the AX15 so I am currently rebuilding it. I have a pretty good idea of what I need to do, replace, and rig up to make this work but I don't want to overlook anything out of the ordinary. 2nd: are there any tips or tricks to rebuilding the AX15 that are easy to miss? 3rd: Are there any major issues with the AX15 swap into the CJ? The trans looks to be an easy rebuild as long as I get everything 100% perfect. Thanks!