I traded my bike for a kid's jeep that he put together. I love the jeep and have been working on my backyard mechanic skills (and lingo..). What I'm wondering is, what are my capabilities right now with the jeep I have and what should I consider upgrading (brakes are on the list...) - I'm in IL so it's basically light trails and mud/water for me. Here's my parts list from that guy:

1987-95 Wrangler Tub
1978 Hood, fenders, frame
1974 - 258 I6 (with 80's upgrades - elec. ing./ intake/exhaust etc)
1974 J10 Dana 44 axles(4:10 gears)(spring over axle susp.)
35x12.5 wheels on 15" rims
Dana 300 transfer case mated to T-176 4speed (1974)
1974 J10 steering linkage cut down to fit at the drag link adj.

*All the 1974 parts are from a J10 Pickup
It seems to run strong but I don't know about the gearing - I can get up to 10-15mph or so in 1st. I've replaced the Tcase seal and am going to have to do the rear main as well (which will include new clutch and oil pan gasket while I'm down there.) Any suggestions are appreciated. Thanks