Quote:
Originally Posted by BlackSTX
Thanks for the info!
I'm guessing that 4.10's may win out, though I am curious about trying 4.30's. I'll admit, I don't know about the torque limiting effect of the PCM.
I believe it's always a bit better to wish you had a bit more gear than wishing you hadn't gone so extreme. I know 4.56's or better can get you up and running pretty quick, but there's certainly a down side with them. The answers I got on another forum some time ago was very extreme..... 4.88's.... really!  I couldn't even consider them to be serious, especially since I'm not planning on lifting my truck and running 36" tires, nor am I planning on taking it to the track.
I knew I'd get more logical responses here, not to mention some other info. worth considering, thanks!  |
With my tires, going one step up in gear ratio adds about 200 RPM in the 66 mph range. A bit more than that at 76, maybe around 250 RPM? I think anything more than that would make the engine sound like it was screaming at cruise speeds. I know I hate to listen to it when I have to drop into 3rd while towing at 65, sounds to me like the engine's running much too fast.
- Jack