What Kind of RPMs??

[Dieselguy123]

Hey all, I am going to be swapping out my ZF5 for a C-6 (Getting pretty noisy) I am not going to be driving this truck on the freeway at all really(Maybe once a year) I have 3.55 gears with 265/85 tires, What Kind of RPMs will I be running at about 60? I plan on putting a gearvendors on the truck in the next year or so.....After I get a turbo Thanks-Brad-

 

[Kris K]

I turn about 2500 RPM's with a c-6 and, 3.55's at 60 MPH with 265/75's.

 

[Agnem]

I'll second that. About 500 RPM's too many.

 

[TLBREWER]

Hey all, I am going to be swapping out my ZF5 for a C-6 (Getting pretty noisy) I am not going to be driving this truck on the freeway at all really(Maybe once a year) I have 3.55 gears with 265/85 tires, What Kind of RPMs will I be running at about 60? I plan on putting a gearvendors on the truck in the next year or so.....After I get a turbo Thanks-Brad-

What brand are your 265/85 tires? I've been looking and the widest I can find are 255 in an 85 series, but I'd prefer 265's.

Tom

 

[Dieselguy123]

Sorry the tires I have on there are 265/75 ,I had to take a second look at them, I have run into the same problem finding the wider tires. -Brad-

 

[Kris K]

I'll second that. About 500 RPM's too many.

I'd love to get down to about 2000 rpms but I guess the only way is to get a GV. I've even thought about putting some 255/85's on to knock the RPM's down a little.