Its meant to take 5000lbs smashing down on it. Pretty sure the engineers didn't go crazy on the mounting points because they don't want Susan rolling her suv. Not to mention our GVWR is small enough without 500lbs added.
Steel has nearly identical compressive/tensile load ratings. The only difference would be cage design to take hits instead of pulls.
Also don't need to stick 5000lbs on top, the windshield frame itself could easily take a 500lb dynamic rating.
Your not alone.
The window frame is tied in with the roll bars.
You would think if the windshield can take a 5000lb bronco upside down on it, it could take some sturdier rack mounts for more weight rating.
0 rear movement. Hitch milled .005" under receiver. Turn buckles. Billet 6061 AL rnd coped, welded. Would break before bend or twist.
Any movement was in ladder on top. Bolted to coped rear post. 6061 Tube. Blocks have hole .065" over ladder tube, ladder secured by pin in the blocks.
Happened...
I agree on the problem.
The height of the racks front blocks were main issue though. Torque is increased further out you are.
Rear of the rack was fine, had turnbuckles installed. No sway/torsion.
Rear is what kept everything sturdy enough to drive home.
I've seen quite a few broncos with rtt...
Very interesting, I'll have to bring her in and see what they say. Now that you say that, it does appear the left two buttons had good adhesion but the right three where almost just blank holes.
I might be blind, where does Ford even mention the weight limits for the windshield mounts?
I've got a thread on the rack. Myn was too tall, wasn't sure on height clearance around the soft top at first. Will be going lower for less lever action.