I have an 85 FJ60 with a SROR rear bumper installed by a previous owner. Like yours, has a spare tire carrier and ladder.
Question: Does SROR still exist? I cannot find a website. Asking because the 'T' handle locking pins for the swing outs are damaged and I need replacements. No luck finding a supplier.
I have an ARB front bumper w/winch. When I bought the vehicle it had a high lift jack mounted to the top rail same as yours. I eventually removed the jack because on washboard trails I could see the bumper was moving a lot due to all that weight up high. Could be your non winch bumper does not extend out from the frame as far so there is less flexing. Might want to keep an eye on that.
Post a picture of your truck would love to see it.
it's my understanding that Solid Rock Off- Road (SROR) went out of business maybe 10 years ago. Tim(?) the owner was based in Castlerock, Colorado and constructed his bumpers, sliders, rock sliders orginally out shop and then moved to his house. I heard that he shut down SROR due to the challenge of running his own small business and the difficulty of getting people to pay on time but, he got back into Toyota/Lexus repair and sold his designs to another bumper company, not sure who they are.
As I understand it, my bumper was #001 with the rear quarter rock sliders welded to the bumper and bolted to the frame and the ladder was my design to hold a 5L fuel can. Have no clue if more was made that way.
As for the "T" handle locking latch, they have been a known issue since the original design. They have been known to shear off if the locking clamp breaks and the swing arm (with the full weight of the spare, etc...) flies open and shears the "T" handle pin and then the spare takes out the rear fender, window and "D" pillar...ouch....I carry a spare "T" handle, locking clamp and cotter pin in my field repair kit just in case. I found the "T" handle and locking clamp on Amazon maybe 10 years ago.
I also welded in a 1/4 inch steel plate and cotter pin lock next to the locking clamp to stop the swing gate from breaking loose if the clamp breaks (look at the clamp closely and you may see the "U" strap starting to stretch or bend).
As for the ARB and Hilift, I've been through two ARB's bumpers. One, non-winch and the second winch bumper with a WARN 8274. Both have always carried a 60 in Hilift on custom aluminum posts and locks. While I agree with you that you will see the bumper loops and hilift vibrate on bad roads or trails I've not seen a structural problem in well over 100k miles. As a matter of fact, the ARB non-winch bumper, hilift and mounts all survived a T-bone crash when a minivan ran a stoplight in front of me, so I trust their construction. Yet, I appreciate your suggestion!