I have two 1971 jeepster commandos that in going to make one good one out of. One is a 225 with t14a, other is 225 with auto. Probably going with the t14. Im building it for my wife but making her do a bunch of the work so she knows how much time is involved. She says old jeeps need to be manual not auto. Going to keep it original as possible with 31 inch tires, no bigger. One has heavier leaf springs. auto has 5 leaf front spings and 6 leaf rears. other has 4 leaf front and 3 leaf rear springs. Im thinking of using the heavier leaf springs. any disadvantages other than stiffer ride? It has drum brakes all around and no power brakes. was thinking I can get a narrow track cj axle with disc brakes or wide track and add spacers to the original rear to make them the same width. It has 3,73 gears. And a cj brake booster? Any help or ideas will be appreciated.