I just completed my 6.2L diesel swap into a 1993 Suburban 2wd, complete with a 700-R4. I like the smoothness of the drivetrain, and the ease of acceleration (I was pleasantly surprised), and the effortless way it cruises at highway speeds (I might even want to re-gear to a taller ratio). My only concern is that the transmission on full throttle just doesn't want to upshift. It lingers forever near the governed RPM and then bumps into the next gear. It does that on WOT 1-2 and 2-3 (I don't have the nerve to see the 3-4!). I don't rocket around at WOT all that much but it would be nice to have an upshift a few hundred RPM lower. I wanted to know if there are any heavier weights available for these governors so I can try and lower the WOT upshift points a few hundred revs. I'd really like to get WOT upshifts at about 3,500 RPM instead of GM's recommended 3,800 calibration. I know that there are two primary and two secondary weights, and a pair of secondary weight springs, which the primary weights use to exert force on the secondary weights, which then act on the governor valve. While I am not transmission expert, I do have a GM factory training manual for the 700-R4 which does a good job of explaining how the governor works, and it would seem that heavier weights are the answer. I also know that backing off the T.V. cable to get earlier shifts is a bad idea, so recalibrating the governor is the only practical solution. I know easing off the throttle works, but I just want this thing to shift right at all throttle angles. Besides, it would seem that earlier part throttle upshifts would be advantageous with the way this engine likes to run. For what it's worth, it's currently geared with 3.73:1 gears, but I might see about swapping them for a set of 3.42s when I get a chance. This rig is purely a family car (I built it with long highway sprints in mind) and will not be used to tow anything more substantial than a 2,500lb pop up camper, because I have a truck for that. I am even considering a set of 3.08:1 gears, but I might just hedge my bets ad go with 3.42s. Anyhow, what can anyone recommend about the governor weights?