The short answer is that the bump stops DO need to be that large. Bump stops (called a jounce bumper in OEM world) are designed to progressively 'catch' the suspension as it comes up during a hard bump event, and any of the components in the suspension going metal on metal and destroying themselves.. The jounce bumper prevents coil bind, shock piston bottoming, contact between a-arm and frame, etc.
Actually your dead wrong about manufacturers setting up suspension sitting on the bump stops, it is this exact observation that cause me to come up with the idea in the first place. And I'm NOT just talking about ford here GM and isuzu has been doing this for years. And other manufacturers as well, since you obviously haven't seen what I'm talking about go crawl under a stock GM full size truck nearly any 2000s will do and look at the big yellow bumper ....My H3 had these under the front A arms and I removed them, (as have many others) and put many hard miles down with zero issues. Also had 4 Vehicross that had the same manufacturer *defect* on the rear axle. The bump stops are literally 1/4" away at stock height. So I shaved half of them off as well. 300,000 plus super hard Baja type miles that included lots and lots of jumps, again with ZERO issues.
None of those jounce bumpers in your photos are touching anything… and that second photo is an aftermarket poly bump stop…. Not a stock one. Try again.
You’re right, it’s not rocket science….it’s engineeringActually your dead wrong about manufacturers setting up suspension sitting on the bump stops, it is this exact observation that cause me to come up with the idea in the first place. And I'm NOT just talking about ford here GM and isuzu has been doing this for years. And other manufacturers as well, since you obviously haven't seen what I'm talking about go crawl under a stock GM full size truck nearly any 2000s will do and look at the big yellow bumper ....My H3 had these under the front A arms and I removed them, (as have many others) and put many hard miles down with zero issues. Also had 4 Vehicross that had the same manufacturer *defect* on the rear axle. The bump stops are literally 1/4" away at stock height. So I shaved half of them off as well. 300,000 plus super hard Baja type miles that included lots and lots of jumps, again with ZERO issues.
Those of us that have some time in the off road world know plenty of rigs with shaved bumps, this ain't anything new and it's not rocket science.
Clearly the only BS here is in your post!
I have to disagree here, unless your commute is on the KOH course
The problem is most automotive engineers never go off road or puts the math to a real world test. They are designing the bumps for "worst case scenario" impacts...to save the parts and the liability of broken parts. Over- engineered parts to protect bilstein and ford.
Yep went through 2 engines and 3 transmission 7 sets of tires, but not one blown shock! Again if you actually look this up on Google or any of the hardcore wheeling forums, you'll see shaved bumps are quite normal.
Its hilarious that you think vehicles don’t get tested
……. I never said this has never been done before. I said it’s a bad idea for a daily driver, which is 99.99999999% of this forum’s membership.
