Desertcrawler Posted January 22, 2017 Report Share Posted January 22, 2017 Thought you guys would be interested in Tylers latest New Mexico adventure. Combines snow run with Ham Radio & some recovery work... https://www.youtube.com/watch?v=sqpUwGTHJtk&app=desktop Link to comment Share on other sites More sharing options...
GraemeWare Posted January 22, 2017 Report Share Posted January 22, 2017 Thought you guys would be interested in Tylers latest New Mexico adventure. Combines snow run with Ham Radio & some recovery work... https://www.youtube.com/watch?v=sqpUwGTHJtk&app=desktop Chuck, Like it. But tell Tyler not to go wheeling on his own in the snow .... Graeme Link to comment Share on other sites More sharing options...
Desertcrawler Posted January 23, 2017 Author Report Share Posted January 23, 2017 He wasn't alone -- 3 others with him. And had HAM as well as cell coverage throughout - along with his offroad club on standby to come rescue if needed. He facetimed me from the summit,, Link to comment Share on other sites More sharing options...
GraemeWare Posted January 23, 2017 Report Share Posted January 23, 2017 He wasn't alone -- 3 others with him. And had HAM as well as cell coverage throughout - along with his offroad club on standby to come rescue if needed. He facetimed me from the summit,, Chuck, Cool. I should have known Tyler was sensible enough to cover all bases. Graeme Link to comment Share on other sites More sharing options...
SLOHybrid Posted January 24, 2017 Report Share Posted January 24, 2017 Chuck, Cool. I should have known Tyler was sensible enough to cover all bases. GraemeUnlike the other 3 cars?? what were they thinking?? Link to comment Share on other sites More sharing options...
GraemeWare Posted January 24, 2017 Report Share Posted January 24, 2017 Unlike the other 3 cars?? what were they thinking?? Nathan, I had the same issue in the snow on I80 this weekend. Boy racer in a Subaru that thought AWD meant that he could drive 20mph faster than everyone else and weave through us all. I knew he had less traction than I did, and I had the diff locked and TC engaged. Graeme Link to comment Share on other sites More sharing options...
AlysonH Posted January 24, 2017 Report Share Posted January 24, 2017 Glad to see Tyler having fun in NM. Thanks for sharing Chuck! Link to comment Share on other sites More sharing options...
JFuller Posted January 24, 2017 Report Share Posted January 24, 2017 Glad to see him helping. Hard to tell from the shakes recovery video it appeared that he was pulling the subaru with his winch cable while reversing. From multiple experiences it is not the best idea to pull in reverse. Lots of load on the front axle can cause breakage. Link to comment Share on other sites More sharing options...
GraemeWare Posted January 24, 2017 Report Share Posted January 24, 2017 Glad to see him helping. Hard to tell from the shakes recovery video it appeared that he was pulling the subaru with his winch cable while reversing. From multiple experiences it is not the best idea to pull in reverse. Lots of load on the front axle can cause breakage. Jason, Actually, the front differential is stronger in reverse (unless you have a reverse-cut gear-set fitted). The CVs are equally strong in each direction. The one possible thing is that the axles themselves have a natural twist in the normal drive direction, but I doubt that is significant. Reverse gear is lower than first, but that is no worse than an underdrive in multiplying the torque, and on an automatic gearbox the torque converter softens that anyway. Graeme Link to comment Share on other sites More sharing options...
TigerDan Posted January 24, 2017 Report Share Posted January 24, 2017 Frank blew his front diff on the Rubicon a few years ago pulling Chuck's truck out backwards and commented that he should have known better as those gears had a lot of hard miles on them and he shouldn't have put that kind of load on them in reverse. Link to comment Share on other sites More sharing options...
JFuller Posted January 24, 2017 Report Share Posted January 24, 2017 I lost a front CV trying to pull a U-haul truck in reverse. (haven't broken anything on the front since). Watch a jeep front ring gear let go trying to pull a tree in reverse. watched a front axle grenade on a '69 bronco pulling a jeep up a hill in reverse. I have watched all three of those vehicles pull in forward without damage. Maybe it's anecdotal but my theory is that pulling in reverse subjects the front axle to much greater normal force as the suspension loads up, similar to what happens in the rear when driving forward. The additional normal force produces higher frictional forces and increases the torque applied through the drive train. I can't say that the axle isn't engineered to the same standards between forward and reverse but I will only pull in reverse as a last resort based on what I have witnessed. just my $0.02 (plus i would rather fix a rear axle over a front on the trail any day. haha) Link to comment Share on other sites More sharing options...
Desertcrawler Posted January 25, 2017 Author Report Share Posted January 25, 2017 I avoid pulling in reverse when I can. I busted a diff doing that when I was dragging some railroad ties around my yard. I also busted Frank's diff when he was pulling me out in reverse on the Rubicon once. I let the winch do all the work, have truck in neutral. Of course if you get out, remember to engage the parking brake. Otherwise bad things will happen. That is how Tyler ended up with that truck. I'd have to look at the situation again to see how he was doing the towing, but my assumption was it was a pretty light tug. Link to comment Share on other sites More sharing options...
DHappel Posted January 25, 2017 Report Share Posted January 25, 2017 When I watched it I too thought he was pulling using his wench as a tow strap. And it did look like a light pull but then again if you broke a diff just dragging railroad ties around....Jeez! Link to comment Share on other sites More sharing options...
Desertcrawler Posted January 25, 2017 Author Report Share Posted January 25, 2017 I didn't see any wenches in the video - but good for Tyler if he's found one! I'd be suprised if he was towing with a winch cable. That's bad form. Link to comment Share on other sites More sharing options...
DHappel Posted January 25, 2017 Report Share Posted January 25, 2017 *crap*. Typing fail Link to comment Share on other sites More sharing options...
Desertcrawler Posted January 25, 2017 Author Report Share Posted January 25, 2017 Yes, using your wench as a tow strap is something different I think Link to comment Share on other sites More sharing options...
DHappel Posted January 25, 2017 Report Share Posted January 25, 2017 A wench with a strap could take this in a very non-pg direction. Link to comment Share on other sites More sharing options...
SLOHybrid Posted January 25, 2017 Report Share Posted January 25, 2017 I see lot's of "wenches" on Craigslist all the time.... I already have a wench Link to comment Share on other sites More sharing options...
JFuller Posted January 26, 2017 Report Share Posted January 26, 2017 I noticed that too but didn't want to pile on plus I've never done it but only been told it's bad so I don't have any first hand experience on why it's bad. Plus he was pulling a Subaru so really how bad could it be? Link to comment Share on other sites More sharing options...
GraemeWare Posted January 26, 2017 Report Share Posted January 26, 2017 I lost a front CV trying to pull a U-haul truck in reverse. (haven't broken anything on the front since). Watch a jeep front ring gear let go trying to pull a tree in reverse. watched a front axle grenade on a '69 bronco pulling a jeep up a hill in reverse. I have watched all three of those vehicles pull in forward without damage. Maybe it's anecdotal but my theory is that pulling in reverse subjects the front axle to much greater normal force as the suspension loads up, similar to what happens in the rear when driving forward. The additional normal force produces higher frictional forces and increases the torque applied through the drive train. I can't say that the axle isn't engineered to the same standards between forward and reverse but I will only pull in reverse as a last resort based on what I have witnessed. just my $0.02 (plus i would rather fix a rear axle over a front on the trail any day. haha) Jason, Dana and Ford differentials are very different to Rovers. A Rover diff is the same front and rear, with the front running on the "coast" side of the ring gear. That makes the front about 70% of the strength of the rear, running in the forward direction. In the reverse the opposite is true. I could entertain minimal vector forces changing that a little due to suspension squat, but work hardening of axles in one direction is the only other potential cause of "reverse failure" being less than forward failure. Regards, Graeme Link to comment Share on other sites More sharing options...
Desertcrawler Posted January 26, 2017 Author Report Share Posted January 26, 2017 What he says -- but I am pretty sure on Tylers rig he has the reverse cut mod (as part of the heavy duty axles he has installed there). How do I know? Once I installed them wrong - so I was 70% strength going forward on both, 100% reverse instead of the opposite. Link to comment Share on other sites More sharing options...
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