Do I need different gears with 33” tires and 4” lift

[dvdswan]

I had 3.08 and 33s with a 350/4 sp. No issues with around town cruising. Highway it's a little high as you don't have the pickup in third if you step on the gas. 3.5 or 3.73 would be a lot better. 3.73 if you think you are ever going to tow something.

 

[Dixie Pride]

My 85 K20 manual has 44 swampers on it with stock gears.It is just a 3 speed now i guess ,dont go over 40 mph anyway.It is just a wax and make a beer run on Sunday truck.Had it since new and it never gets dirty anymore.Name on the side of the truck is Reverent Black. Sure love my truck it stays in the barn where as my new one stays outside.

 

[82sbshortbed]

This is what I got on mine. With 454 and 275/60/r15. I'm really happy with this setup. I think my next set of tires will be slightly taller than the current ones.

GM Chevy 8.5" Chevy 10-Bolt Rearend TrueTrac - 28 Spline, Gear, Bearing Kit Package - 3.73 Ratio https://a.co/d/iwpp6SG

 

[bucket]

I'll just point out that if anyone is ever asking if they need or should have steeper gearing, they should.

 

[sqhead]

This is what I got on mine. With 454 and 275/60/r15. I'm really happy with this setup. I think my next set of tires will be slightly taller than the current ones.

GM Chevy 8.5" Chevy 10-Bolt Rearend TrueTrac - 28 Spline, Gear, Bearing Kit Package - 3.73 Ratio https://a.co/d/iwpp6SG

I think I’m going with a 3.42 Eaton tru trac

 

[bucket]

I think I’m going with a 3.42 Eaton tru trac

Unless you do mostly interstate driving, the 3.73 is likely a choice you will end up happier with.

 

[82sbshortbed]

Unless you do mostly interstate driving, the 3.73 is likely a choice you will end up happier with.

^^this

 

[SquareRoot]

I'll just point out that if anyone is ever asking if they need or should have steeper gearing, they should.

Zactly! If you have to ask the decision has already been made. No time for popcorn here.