392 broken axle

[Rubi64L]

I agree with the bump-stop transferring energy to places where it wasn't supposed to go theory. The bump-stops on these Jeeps really aren't adequate. I'm in the hunt for some that absorb a bit more energy, a bit more elegantly. On a recent mountain highway cruise at about 80 mph, I managed to hit a sharp dip in the road that was brutal. I'm still looking around for my dentures (they may have flown out the window, or maybe I swallowe them and they still haven't made their way through the plumbing). The 392 hit that dip, bottomed against the bump stops, and launched us up in the air briefly. It was very sudden and harsh, and it felt like it could break something. On my WJ, I swapped the bump stops for a progressive set that had one softer set inside the coil springs, and then another on the control arms to pick up the slack if the regular bump stops were pushed beyond their limits. I've hit some things with that Jeep and just went on down the road. The 392 bump stops didn't behave as elegantly - so maybe a fix to absorb more energy and keep my dentures in place is needed.

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[chevymitchell]

I agree with the bump-stop transferring energy to places where it wasn't supposed to go theory. The bump-stops on these Jeeps really aren't adequate. I'm in the hunt for some that absorb a bit more energy, a bit more elegantly. On a recent mountain highway cruise at about 80 mph, I managed to hit a sharp dip in the road that was brutal. I'm still looking around for my dentures (they may have flown out the window, or maybe I swallowe them and they still haven't made their way through the plumbing). The 392 hit that dip, bottomed against the bump stops, and launched us up in the air briefly. It was very sudden and harsh, and it felt like it could break something. On my WJ, I swapped the bump stops for a progressive set that had one softer set inside the coil springs, and then another on the control arms to pick up the slack if the regular bump stops were pushed beyond their limits. I've hit some things with that Jeep and just went on down the road. The 392 bump stops didn't behave as elegantly - so maybe a fix to absorb more energy and keep my dentures in place is needed.

King Air bumps, good sir. Worth every penny.

 

[Rodeoflyer]

These chase guys jump 10k lb trucks.. it's IS really about the suspension and shock valving. There's no weight you can't control with the proper suspension/valving/bumpstops and that saves your axle from having to control it

https://www.motortrend.com/events/baja-1000-diesel-trucks/

Its ALL about the spring rate and bumps stops, suspension travel, shock valving, and how it all works together regardless of vehicle weight.

 

[Maverick909]

and this is why a trophy truck has 100+ grand into the suspension. I know when i was working for fab tech many moons ago the owners truck was well into the 180K for suspension. Hours and hours of tuning and changing valve rates setting bump stops etc. it was unreal

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