Ive got my 95, 33's, 5.8 v8 stock tranny with o/d and 4x4. I noticed when i put the bigger tires on it got a little sluggish and it doesnt shift exactly when it should, but pretty close. So i was wondering, wat are stock gears in that and wat should i go to? I plan on upgrading a bit more when ever these tires wear out and get 35-36 inch tires. I know very little about it so it would help if people would enlighten me. Thanks.

 

Another thing. I want to keep my rpms reasonably low. I pull very loads rarely, and theyre usually not very big. But right now i run about 15-1600 rpms at 60 mph. And i get reasonable mileage for that truck.

 

The tires arent wide either.10.50 and when i get the next set i hope to get new rims and put 11-11.50 tires on it.

 

What's the axle code on your door jamb sticker?

 

Ill tell u whwn i get home. Give me a few hours.

 

Axle code is H9

 

h9 is limited slip 3.55 gears. Common stock gearing.
4.10-4.30 for 33's would be good. If you are going up to 35's then 4.56 would be the best.

 

Wat about rpms at speed and mileage?

 

Calculator:

http://4lo.com/calc/gearratio.htm

Use 0.7 for transmission ratio for overdrive. Use 1 for transfer case ratio.

 

That helped a whole lot. Thanks. That pretty mych made up mind. Maybe crunch some more numbers to see if i want 4.10 or 4.30. Anyone out here got any more input?