I just don't like towing with dollys. I burnt the 8.25 in my 74 charger up towing it from Richmond Indiana to Columbus Indiana, it was plum full of oil too, the pinion shaft looked like it'd been hit with a blow torch. I had the driveshaft out and all. I figured it had to do with the front of the car being on the dolly and the angle causing the oil to pool away from the pinion shaft. But I've also towed cars just fine with a dolly so who knows.