so my brother has an '06 rubicon that HAD a front driveshaft vibration.instead of fixing it, he ran it until BOOM!basicly, the side of the t-case that the front driveshaft goes into shattered.we put in a used 241 roc-trac and driveshaft and he went on his way,leaving the shattered t-case sitting in my basement.the planatarys and mainshaft look fine, and i was wondering,will the 4 to 1 low gears fit into any 241?