Need Your Opinions On Final Gear Selection

[jrdifranc]

Truck is going in next week for its lift and new wheels and tires. I need to order my gears on Monday to get that scheduled for the following week. Need your opinions/advise (and reasons) on which gear selection I should make. These are my choices (I have the 6 spd tranny with 3.42s currently; will be running 35s now):

4.10's

4.30's

4.56's

Still do alot of highway traveling, little to no towing (only a few motorcycles), and do enjoy street performance. I'm leaning towards the 4.30's because I'm afraid the 4.56's will be too short of a gear for highway road trips. Opinions, thoughts, experience, all welcome...thx

[Z'06]

Think differently when it comes to 6-speed transmissions. The rules of thumb for 4-speed trannies (i.e., 4.10 for 33", 4.56 for 35", 5.13 for 37", etc.) are no longer relevant. The gear ratio of the first gear in the 6-speed is way lower (higher numerically) than the first gear ratio of the 4-speed, so a 3.42 in a 6-speed might not be far off from a 4.10 in a 4-speed in off-the-line performance (so accordingly, a 4.10 in a 6-speed with 35" tires might be as fine as running 4.56 in a 4-speed with 35" tires).

[cerbomark]

Think differently when it comes to 6-speed transmissions. The rules of thumb for 4-speed trannies (i.e., 4.10 for 33", 4.56 for 35", 5.13 for 37", etc.) are no longer relevant. The gear ratio of the first gear in the 6-speed is way lower (higher numerically) than the first gear ratio of the 4-speed, so a 3.42 in a 6-speed might not be far off from a 4.10 in a 4-speed in off-the-line performance (so accordingly, a 4.10 in a 6-speed with 35" tires might be as fine as running 4.56 in a 4-speed with 35" tires).

 

I agree.