I pull straight down on the front with two straps to the axle (one each side) and cross the rear straps on my 60 (one each side), when towing it on my trailer. All four straps use axle straps around the "axle". Have two HD d rings on the floor of the trailer at the front and rear. This has worked well for me in keeping the 60 in place. I know people have different setups etc. The straight pull down at the heavy end (engine side) keeps that secure "in my mind", and then the cross straps at the rear keep the @ss end from swinging around in case of a hard stop...again in my "mind".
I saw this first hand one time. I was following another mudder towyxing one time....one of the rear straps on his truck got loose...allowing the tied down 40 to move a little bit, the truck had to stop real quick....between the motion of the 40 moving and the trailer stopping...it got into a whiplash kind of deal and the 40 moved around a good bit...and this was under 20 mph (first stop after getting loaded up to leave and the stop sign just across the parking lot).
I bet a strap on the rear either broke or came loose....and the "@ss" swung around in combination when you hit the pothole or whatever happened.
I bet it was a a fun ride to the stopping point.
I nearly ate someone's "but" the other day towing my 60 to a friends house...coming down a steep hill, red light at the very bottom and car decides to stop right in front of me...under yellow. Only way I missed him was being able to get in the left hand turn lane. Combination of me probably going to fast for the situation and steep hill....loaded trailer was pushing me hard.
I've got a 2500 HD and I've been thinking about getting a 3500.... but it takes mo $$. The reason I might go that way is bigger brakes and stability. I"m sure the dual tires / weight of the 3500 helped you have a safe stop.
The winch on the front is a straight pull and I have used this method for many, many miles. BTW, winches are dot designed for this sort of load so use this method at your own risk.
My feeling is that the rear straps somehow came off first. I have never seek a 2 5/16" Bulldog hitch let go but this one was still closed and sitting on the ground when we stopped. If you look at the trailer you can see that the factory tie down points on the rear are very narrow (inside the little ramps I added). I have never liked this and will be adding some new points for a wider cross on the rear.
As for the truck, I KNOW the dually saved our butts. Good tires from 49Tire, properly inflated, wide stable stance, etc. I have had trailers fishtail before but never like this one did. I also think we are lucky that the trailer break-away wiring got cut allowing the one remaining safety chain to retain the trailer to the truck. If the trailer brakes had locked up I feel like the last chain would have snapped and the trailer would have gone completely out of control.
Yes, very lucky!