Well, I only have the truck for 10 days now, and I?ll let the experts here answer your technical questions - I?d just comment on the last issue:
I have the manual trans and I was glad to find out that the power
IS ABSOLUTELY ADEQUATE - and I had V8 WJ Jeep before H3...
I can imagine that with auto trans the power could feel marginal at times.
Also,the engine is quite torquey - it has 90% of tq as low as 1600 rpm..
IMHO you don?t have to worry about the power - but it woun?t hurt to have some other car for going FAST
