well, i took the truck out for a spin a lil while ago...Its an automatic...I got on the trottle and didnt let off and it was shifting at around 5500, so i guess that gives me somewhat of an idea...The truck only has a 3speed with 4.11 gears...The only thing im worried about is being in 3gear at cruising speed...When im on the highway doing about 50-60mph the engine is reving at a steady 4300-4500...As soon as i step on the gas it jumps up real quick to around 5000, im always scared im gonna over rev it...

forgive me if i make things a lil confusing or leave details out, im still a young'n kinda (23) learning as i go...Ill have to do a compression test like you mentioned...thanks for the info guys..