Posted: Jan 25 2007 at 4:57pm | IP Logged

..

Welcome to the group.

... Tomorrow (Friday) I’ll check my tach/speed. And get back to you. My ’99 is like yours but mine is automatic.  The differential are 4.62 in the V-6 automatics. It’s possible that the gear ratio has been changed. But that won’t explain the RPM at idle.

Have a good one, and Carry on with the insanity..   Don S..

Posted: Feb 09 2007 at 9:33pm | IP Logged

JimmyJamesW

This won’t help you much but I got to check mine out today. I have BFG KO AT 31x10.50x15 on my V-6 automatic and they are about one inch over stock. At 60 mph it’s 2,200 rpm and at 70 mph it’s 2,600 rpm. This is in overdrive with the torque converter locked. I think I would need to add 2 to 4 mph to the speed to be correct. Checking the speed by mile markers seems to make that true.

EDIT:

The 4x4 V-6 automatics have a 4.62 gear ratio. The Manuals 4x4 V-6 has somrthing like a 4.3 gear ratio 

Have a good one while you can still laugh about it.. Don S..