Cutting Bump Stops
04-19-2013, 07:27 PM
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Cutting Bump Stops For those of you that cut your bump stops, what did ya'll use? I need to cut them off and then some.
As an FYI, I don't own a single power tool... Never needed one till now. Thought about using a dremel with a metal cutting attachment but I don't see that working.
As an FYI, I don't own a single power tool... Never needed one till now. Thought about using a dremel with a metal cutting attachment but I don't see that working.
Last edited by AmnSF; 04-19-2013 at 07:33 PM.
04-19-2013, 08:34 PM
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I bought a set of C5Z wheels off a board member and put 315 Toyo Proxes on them. He said the wheels fit another f body no problem. Unsure if they are OE wheels or not. They're 17x9.5 18x10.5.
04-19-2013, 09:06 PM
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Im running 17x11s (315/35s) in the rear with no modification to the bumpstops.
Why go hacking away at the chassis of the car (especially the piece that is your suspension stop point so it doesnt hit anything else) just to fit some wheels with the wrong offset?
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04-19-2013, 10:55 PM
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04-20-2013, 06:09 AM
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I don't know about the C5Z rims but LPE 403 was talking the correct offset on the 17x11 and it wasn't the 50mm offset. It has to be 32-35 (whichever it was) to not hit the inner fender. BUT... as for mine personally, my opinion to you, (and what they probably DONT do with their cars) is that i've found if you run 11" wide on the back, unless you want a ricer look with tires outside the fender the stops must go. My bet is they all pick their cars up with jacks. I don't. I use a 2 post lift to get under it and I *could not* run the rims without cutting stops off. I'd lift the car and the rims would land on the stops. Just look at how much they stick out and realize that would be how much farther your rim would need to be.
My opinion is if you plan on keeping the car and want to do what you want to it, cut them off. I used a grinder with a cut off wheel to get the large part of it off and then a grinding wheel to polish it up some. Once that was finished hit it with spray can primer, dry it, then rubberized undercoating to match the fender. Mine still isn't perfect but it's fine for me as the inner fender is my issue now. (Don't grind the fender. Beat it a little bit and try to clear; if not then look into spacers) Now if you wanted the stops back it wouldn't take much but you'd need someone else to do it. Look at your axle and where the stops would hit it, mount them there. Its a flat plate. (have to weld to do it - fab up a threaded plate and bolt stops to it). Still have them but they are on the axle out of the way.
And unless you are on pothole hell, you won't bottom out if you use your head. I never did.
My opinion is if you plan on keeping the car and want to do what you want to it, cut them off. I used a grinder with a cut off wheel to get the large part of it off and then a grinding wheel to polish it up some. Once that was finished hit it with spray can primer, dry it, then rubberized undercoating to match the fender. Mine still isn't perfect but it's fine for me as the inner fender is my issue now. (Don't grind the fender. Beat it a little bit and try to clear; if not then look into spacers) Now if you wanted the stops back it wouldn't take much but you'd need someone else to do it. Look at your axle and where the stops would hit it, mount them there. Its a flat plate. (have to weld to do it - fab up a threaded plate and bolt stops to it). Still have them but they are on the axle out of the way.
And unless you are on pothole hell, you won't bottom out if you use your head. I never did.
04-20-2013, 06:18 AM
#13
Pretty much outlined in the sticky. Stick to the lower offset number to push the wheel further out....the wheel to fender relationship looks better as well as minimizes bumpstop interference, reduces BFH efforts, but will make rolling fenders a necessity. Fwiw, mine are +19 but I have a 1" (25.4) narrowed rear end. If I kept the standard rear end dimension, I would opt for a +44 or +45 with an 11" wheel.
I cut my stops for nothing more than cheap insurance because they did touch the wheel when the suspension was unloaded. My wheel investment trumped keeping them in avoiding the possibility of inner wheel damage.
Pics worth a 1000 words....
Last edited by LPE 403; 04-20-2013 at 06:28 AM.
Do it in less then 10 minutes 
04-20-2013, 08:04 AM
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I cut a 1/4" slice off mine. I took the bump stops off and used a dremel with cut off wheels and an old hack saw. I used the dremel to cut off as much of the steel flange as I could and still leave enough metal to support the bump stop. I hammered the center section of the flange in until it was against the aluminum on the bump stop and used a sanding disk to smooth the edges and cut points. It wasn't enough and I still had to jack up the axle to get the wheels up off of the flange to take them off the car. I decided that wasn't going to work for me since my car is a daily driver and flat tires on the side of the road do happen, usually in the middle of nowhere. I traded them for another set that I felt would work better for me.
Lol jk
