I kinda figured as much. I have had the ABS activate on wet roads before but never in snow. On wet roads imho it scraes the bejesus outta me.

I cant wait to get a new rear, there is nothing besides left that could cause a driveline vibration at this point but the rear.

About 2 years ago I redid the rear axle shaft on the pass side (bent one), new motor and trans mount and carrier bearing and checked all u-joints. Amazingly after all of that it rode smooth. Till I noticed a leak at the axle seal and redid the seal, and ever since then it has come back and wont go away. You can physically feel the wheel hop on that side. Its not horrible but having a drum covered in gear oil isnt much good, just didnt have the cash to fix it till now.