Optima brand batteries are excellent. Any of these would be good for your Jeep. The bold number are the Group numbers.
25 (8025-160) RedTop® 34 (8002-002) RedTop® 34/78 (8004-003) RedTop® 75/25 (8022-091) RedTop®
2004
I think the hum V Jeep used by the army is the best off road jeep
I believe the Chevy small block is the best bet for ease of change over and thecheapest.
Banks.
You can go to any auto parts store. Autozone will remove the old and install the new for you. The best part is you have clean hands when you are done.
As a general rule, Yes you can remove your Jeep Wrangler's Hard Top. The best way to find out how is to refer to your Owner's Manual.
The best way is on a trailer.
.035
wheel locks
The best right off the dealership offroad vehicle is the Jeep Wrangler Rubicon.
5W20 is the recommended oil.
Synchromesh is the best I have tried