Gale Banks tested all of the Diff covers made products made on a diesel truck to see if they did anything. He discovered that they did. They killed bearings, fuel economy, and destroyed pinions.Looking at rebuilding the 8.2 10 bolt and I was wondering if anyone has
the aluminum strengthened covers? Perfect Launch and Mosier come to mind.
Any clearance issues between the cover and the panhard bar?
I was debating 3.36 or 3.55 both ratios are available through Yukon. What would be the benefits of going that steep of a gear ratio?3.36 is an improvement over the 3.08 but I would look to see if you can find a 3.55. Common ratio for pick-ups, not so much for cars. But it is as high as I would go with a 1:1 final drive ratio in the tranny.
You can gain the benefit of lower gearing with an OD tranny but the engine needs to be spinning above idle at cruise speed. That is why an OD and 3.73 rear gears is so common at car shows, best of both worlds.
I buy the gears these guys recommend:
then I go to the speedo shop in town to get them calibrated once I install them, tested and certified at 15,45,55,70, and 90 mph.
Every time you change the rear gears you should change the speedo gears to match.