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for someone that is interested in keeping the bumpstops on car for as long as they will last (i know many take them off for fitment issues/other reasons), should i go with these white Dormans (not sure of the material since it is not written anywhere), or the polys with the spacers? i'm lowered on bmr/bilstein - currently NO bumpstops (totally gone/rotted away).
I would try the Doorman ones first. They are super easy to swap out even if they only last a few years. Lowered cars tend to get more "familiar" with the bump stops, so they may have more use in your case.
My car is lowered on Strano springs and Koni yellows and I put in the Jeep poly stops. They were much too stiff to do their job well, so I wound up drilling them out to make the "stop" more progressive. It worked, but took a lot of effort (more on that below), and the urethane eventually started to tear at the holes I drilled. I did the whole thing again, so hopefully this time they don't tear with better spacing on the holes.
I should note, I never used the spacers on my car, which helps by allowing more suspension travel before reaching the stops. It does, however, require a fair amount of grinding on the stops to clear the metal tab on the chassis.
I purchased some red polys for a late 90s jeep cherokee made by energy suspension. They are similar to the stock 4th gens. I did have have to do some grinding on the stock brackets to clear the 18" wheels.
thanks for the insight ... yea i have read about the jeeps but them being poly also & needing some type of spacers too, i think i'll probably just go with the dorman
Part #: Rubber Bumpstop set
Brand: Stranoparts
Price: $28.00
Slightly softer than the urethane for a better ride. If your car is very low and/or carries a lot of weight the urethane stops are more appropriate.
These are inexpensive and ride better than urethane for cars with minor lowering or none, and with wheels and tires that aren't oversized.
I purchased some red polys for a late 90s jeep cherokee made by energy suspension. They are similar to the stock 4th gens. I did have have to do some grinding on the stock brackets to clear the 18" wheels.
I ran those too for a while, then said f it and cut the whole thing off and threw it in the bushes.
I switched to the stock V6 units years ago which look just like the Dormans. I track the car and autocross it with no issues for years now. I switched to get more shock travel. Glad it looks like the Dormans would be my replacement should I need them.
While I offer the poly stops, I do so only because some folks are looking specifically for those, they are not ever my choice or recommendation. They are too stiff to work properly.
I use the rubber stops, not foam, but rubber. GM/Dorman, etc are a foam, which is not as durable, see also how they crumble which is why most have to replace them anyway. If your stock stops are ok, and you have the tapered ones, not the square black ones from an SS/WS6 which are ok but not as progressive, then leave them alone.
If your stops are shot, I would recommend rubber over foam.
Interesting thread... I'm still on my originals and the car has 230k on the clock. They're pretty much nonexistent at this point. Bought the Jeep stops a few years ago, but never installed them. Didn't know Sam sold a set... Very intrigued by what he has to offer.
I'm running Strano springs w/ Koni shocks. Would the Strano rubber stops be best? Also curious about the direct fitment question posted above.
Are they direct fit? Usually, sometimes a very easy mod might have to happen as there is a lip on the body of some cars that kind of gets in the way. You can either trim back the lip, or you can slot the holes on the stop to shift them IF there is any issue with the side of the stop touching the lip. But most of the time with how the stops are made, since the holes are not always 100% in the middle, just spinning them 180 degrees will make them pop right on.
01-27-2018, 06:54 PM
poly bump stops or Dormans? 
