OP
I spend my free time playing guitar / mandolin
Of course I will watch an occasional YouTube video on how-to fix something, I just make sure not to get sucked into anything else, haha.
Latest YouTube hole: Matt's Towing & Recovery
- Thread starter qslim
- Start date
OP
ScottB
TJ Enthusiast
I hate to get caught up in You Tube Rabbit holes. One minute I'm watching a man recover a stuck 4 Runner.........................3 hours later I'm watching a video on learning how to talk to a damn giraffe and thinking, how in the hell did I get here?
ejay
TJ Addict
He runs a very large towing company down in S UT. The Cherokee is a purpose built tow rig to pull the idiots that think they are invulnerable from where they shouldn't be. Both ends of his XJ are equipped with receivers and electrical connections so he can use his winch from either end.
He also explained in one of his videos why he occasionally does a pull in reverse. And how his rig is set up to do so.
Wombat
TJ Enthusiast
Interesting, how do you setup bevel gears to operate under high torque in reverse direction?
That I cant say, I dont really know a whole lot about how that stuff works yet. And I can't remember his explanation. I searched for that particular vid for a bit but didnt find it again.
If I remember right, it had something to do with the high pinion axle he's running in the front but again I dont really know what I'm talking about.
Wombat
TJ Enthusiast
Not sure what his running but the high pinion is the same only running in reverse with the pinion at the top of the ring. t's favored for reducing the front drive shaft angle and clearance.
Ring and pinion gears sets are designed and setup to accept high force in one direction, in reverse may work but we should avoided doing it unless we have to, just saying take it easy if your forced to recover in reverse.
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Don't believe all the click bait you see about tow ball failures. Look closely... if you see a tow ball failure on an internet video it is usually being done with a chain or tow strap (not Snatch Strap or Kinetic Rope). Typically the failures are at welds or hitch structure on homemade or second rate equipment. Per SAE standards a Class 3 hitch and ball are tested to 15,000 lb longitudinal tension. Ronny Dahl took 8 full throttle accelerations on a 30' Tow Strap to break a ball he had sawed the shank half way through and had the towed vehicle strapped to a tree. It deformed the hitch well prior to failing the cut ball. The shear rating on a SAE Class 3 ball shank is over 46,000 lbs. Destruction testing has been done on a Class 3 hitch (available online) and the hitch welds and metal failed at 24,500 lbs, so in this test the hitch will fail well before the 46,000 shear rating of the ball shank. All the information I shared is publically available. I will share a link to SAE Hitch standards.
I wouldn't recommend doing a "Snatch" (rolling pull) with a tow strap or chain as the Impact Force using a tow strap or chain that has no stretch can theoretically exceed shear ratings on a high speed roll out with a heavy towing vehicle and severely stuck towed vehicle (or one tied to a big tree, LOL). The Impact Force generated by a Snatch Strap with 20% stretch or a Kinetic Rope with 30% stretch will not create that level of Impact Force because forces generated are spread over distance and time as the stretch occurs.
https://docplayer.net/30029960-Sae-j-sae-j684.html
I wouldn't recommend doing a "Snatch" (rolling pull) with a tow strap or chain as the Impact Force using a tow strap or chain that has no stretch can theoretically exceed shear ratings on a high speed roll out with a heavy towing vehicle and severely stuck towed vehicle (or one tied to a big tree, LOL). The Impact Force generated by a Snatch Strap with 20% stretch or a Kinetic Rope with 30% stretch will not create that level of Impact Force because forces generated are spread over distance and time as the stretch occurs.
https://docplayer.net/30029960-Sae-j-sae-j684.html
When new. The problem is that they're hollow and they rust from the inside (so you can't see the damage) which, to my understanding, is the root cause of almost all naturally occurring tow ball failures.
Matt's Recovery is just fun to watch, occasionally. I will be going to Utah, on way to Yellowstone 9/20/21 and his videos will keep me from going into that powder sand with my Jeep. Actually, I called and spoke with Matt about a month ago. Real nice guy. I told him thanks for the videos about the sand.