What causes the backflip rollover?

[limitz]

Was watching a vid of Jeep rollovers. I noticed a lot of them were backflipping when trying to climb an obstacle. First one in the vid is here, but I noticed multiple:

NSFW

What are the main causes of these rollovers, locked rear diffs but open front? Too much gas at the wrong time?

 

[jjvw]

Lots of long arms in that video. 😉

 

[Moglocker]

Lots of long arms in that video. 😉

Lotsa dumbasses too,it’s only money,start over again

 

[freedom_in_4low]

To bridge the gap a bit, long arms in TJs tend to have low antisquat which makes the rear squat when you give it throttle. So you get up on a steep obstacle, give it a bunch of gas and the geometry pulls the chassis down toward the rear axle, then once the CG gets behind the rear axle... It's going over.

 

[pagrey]

Too much traction, too steep and too much gas. The suspension isn't a big part of it.

 

[Jablinski]

Lots of long arms in that video. 😉

A few poor acceleration/ brake vs. clutch or neutral...then brake situations as well.
Saved myself a few times by giving preference to blind reverse downhill over blind forward up

 

[jjvw]

A few poor acceleration/ brake vs. clutch or neutral...then brake situations as well.
Saved myself a few times by giving preference to blind reverse downhill over blind forward up

It makes you wonder how many of those were autos. 🤣

 

[jjvw]

Too much traction, too steep and too much gas. The suspension isn't a big part of it.

Too steep and too much gas, I agree. By now you should understand that long arms often make the front end light.

 

[psrivats]

Lots of long arms in that video. 😉

And many overconfident drivers on top.

The scariest one for me was the one around 2.40 or so on ice.

 

[limitz]

And many overconfident drivers on top.

The scariest one for me was the one around 2.40 or so on ice.

Yea that sucked. Did he have MTs on? Just no traction.

 

[psrivats]

Yea that sucked. Did he have MTs on? Just no traction.

probably, and with both axles locked.

 

[Jablinski]

Too much traction, too steep and too much gas. The suspension isn't a big part of it.

In my experience I've noticed that low antisquat is an issue that long arms exacerbate on TJ's. If the rear squats while climbing a steep obstacle, it throws the front rearward toward the tipping angle.
Slamming the gas pedal to the floor definitely doesn't help the situation either though 🙃

 

[Rubeyu]

Piss Poor driving PERIOD!!!

 

[RINC]

I need a real cage.

 

[macleanflood]

Short wheelbase contributes...moving the front axle forward and the rear back can help. But that's a lot of work...

-Mac

 

[R3ID05TJ]

not enough spotting

 

[1904-06LJR]

@hosejockey61 ? ...sorry, still too soon?

 

[Artsifrtsi]

biggest cause? "here, hold my beer... I got this!"

 

[JMT]

Was watching a vid of Jeep rollovers. I noticed a lot of them were backflipping when trying to climb an obstacle. First one in the vid is here, but I noticed multiple:

NSFW

What are the main causes of these rollovers, locked rear diffs but open front? Too much gas at the wrong time?

I don’t think this is mainly due to geometry issue, but the rear locker. It keeps pushing, and if you’re in an auto and don’t slip into neutral or a manual and don’t push the clutch you’ll keep going. Braking is a no no. Gassing it just exacerbated the problem. Going downhill is obvious. Getting sideways is dumb. Love how the dogs escape.

 

[Artsifrtsi]

Love how the dogs escape.

I always find that amusing when watching these videos.