another ? about my 1st 741 build

challenger57 said

I am using a digital torque wrench that vibrates at set torque. When the job is done do I leave the pin nut at 15-20" lbs and use red loctite or do I tighten to 120ft lb or so. It looks like my backlash is to tight. I orderd the dvd I saw going around in here, maybe that can shed some light on my issue. Maybe i can get some pics of the pattern. Thanks

Click to expand...

Like Moper said your using the wrong type of torque wrench. You need a rotating dial type like pictured above (preferred) but a beam type will work, just a little harder to use. And the 15-20 inch lbs. you refer too is the rotating torque of the pinion bearings, not the amount you torque the pinion nut. You achieve the pinion bearing rotating torque by adding or subtracting pinion bearing shims like mentioned earlier. You always torque the pinion nut to 240 foot lbs. after you change the pinion bearing shims so you get the correct rotating torque reading. The rotating torque is the first thing to set right after you set the pinion depth. Once you get the pinion depth set and the pinion bearing preload set then you install the carrier and set the backlash and check the pattern with checking grease.

I know most of what I said is redundant but sometimes a different spin on things will click. Hopefully this helped.