Ok guys, my truck has 32 inch tires on it, 31.5in tall with the weight of the truck sitting on em.
It tends to drop out of OD to easy, thinking a fine tune of the speedo might correct it. Didn't do that before I replaced the speedo cluster.

Tires, Hankook 285/75R16

Not sure what they took the speedo out if, I checked and it says its set to 967. From what I understand, and correct me if I'm wrong please, I need it set to 886, or real close to that at least.

Thanks, Dan