engine spinning at 2500 for a few hours okay?

[H0USE]

with the 4.30s gearing, my truck spins about 2500rpm at around 75mph,

could this harm the motor?

[NRHS Sales]

That is what my truck does as well. Nothing to worry about except crappy fuel mileage!!

[Jarrod B]

just dont redline it.

[tbsimmons]

Try 4.88's. 2200 at 55. I usually hold right at 2500 on the freeway. Much more and the mileage gets really bad.

[ShirtaDay.com]

Curious, what is redline?

And I think i'm about 2300 at 80 - fuel economy sucks then.

[Jarrod B]

Seems like the 7.3s only had em. Its like the max rpm zone.

6.4


7.3 SD

[colo_dually]

Originally Posted by H0USE

with the 4.30s gearing, my truck spins about 2500rpm at around 75mph,

could this harm the motor?

I get the same 2500rpm when running 75mph, with my 6.0L and the 4.30 TowBoss setup. I'm running a stock tires, which I'm assuming you're doing as well. I haven't noticed any performance issues running that speed. Fuel mileage drops to around 12mpg.

[Doorhanger]

550 with 4:88
has run 4 hrs straight at 2750 no problems
gearvendor on the way