Driveshaft lenght, axle swap
i own a 81 cj-7 with a amc360, t-176 tranny, dana 300, modle 20 rear. 35's and SOA. my question is in two parts. i have a stock driveshaft, collapsed length of 23" i think, and i have broken 3 of them. i am putting off buying new driveshafts until this summer because i want a np435 tranny and different axles. is there a cheap way of preventing my driveshafts from breaking or should i just go with an heavy duty expensive shaft( i am poor college student)? also, i have the dana 30 front model 20 rear, narrow trac and i want better axles, dana 60 is too much. but what axles bolt directly in? can i put in a ford 9" rear? or will that conflict with my driveshaft style. i am almost positve about putting in a dana 44 front, but what would be a good donor vehical? i would appreciate some help for i am pretty new to the 4wheelin scene.