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Old 03-19-2020, 11:03 AM   #1
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How much of a drop do I have?

2011 SS, recently purchased. Suspension mods...BMR Springs, Sways, rear control arms, trailing arms, toe-rods. From what I can tell, has the original struts. Tire size: F: 265/35r20, R: 305/30r20.

Trying to figure out what springs are installed (how much of a drop). I love the look of it, but the ride is harsh over bumps (the roads around here SUCK), so I'm thinking of switching to a spring with a little less of a drop. Sooo, I measured from the ground up to fender (over the tire). F: 27-5/8", R: 28-1/4". Tire OD is 27.3".

Any educated guesses would be appreciated. Thanks.

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Old 03-19-2020, 11:29 AM   #2
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https://www.camaro5.com/forums/showthread.php?t=406961

This may help

I bought mine used so I should measure mine too
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Old 03-19-2020, 11:45 AM   #3
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https://www.camaro5.com/forums/showthread.php?t=406961

This may help

I bought mine used so I should measure mine too

Thanks!
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Old 03-19-2020, 11:49 AM   #4
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I'm thinking they are a 1.4" drop which is the lowest that BMR makes. Measured from the bottom wheel lip to fender, F is 25-1/8" and R is 25-3/4"...which is around 2 full inches lower that stock...no wonder it rides a little harsh. I'll probably swap to a 1" drop.
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Old 03-19-2020, 02:17 PM   #5
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Tires seem to be lower profile
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Old 03-19-2020, 02:38 PM   #6
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Pictures?

also, our Springs have Part #s on them
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Old 03-19-2020, 03:10 PM   #7
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Measure from the lower wheel lip to top of fender arch. For ref my car stock with 50 miles on it was 26.875” f and 27.15” r. F to r rake or hieght difference is 5-10 mm.
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Old 03-19-2020, 03:35 PM   #8
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Measure from the lower wheel lip to top of fender arch. For ref my car stock with 50 miles on it was 26.875” f and 27.15” r. F to r rake or hieght difference is 5-10 mm.
yup...did that...Measured from the bottom wheel lip to fender, F is 25-1/8" and R is 25-3/4"
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Old 03-19-2020, 03:36 PM   #9
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Pictures?

also, our Springs have Part #s on them
Thanks. Where are the #'s? They were painted so not sure they're still visible.
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Old 03-19-2020, 03:42 PM   #10
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Picture is not showing up, my car in my sig picture is a BMR 1.25 drop all around.
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Old 03-19-2020, 03:48 PM   #11
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Picture is not showing up, my car in my sig picture is a BMR 1.25 drop all around.
weird...I can see the picture. Here's a link...https://www.dropbox.com/s/z5zw1f00mq...2_HDR.jpg?dl=0
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Old 03-19-2020, 03:50 PM   #12
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Looks like a 1.25" drop to me or maybe even 1"
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Old 03-19-2020, 04:00 PM   #13
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Originally Posted by POWERFREAK View Post
yup...did that...Measured from the bottom wheel lip to fender, F is 25-1/8" and R is 25-3/4"
That rake difference is reasonable. My old Hotchkiss 1@ springs had same difference front to rear. Though factory difference is about 3/16-1/4” only. Not sure why aftermarket is more
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Old 03-19-2020, 04:03 PM   #14
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Looks like a 1.25" drop to me or maybe even 1"
Yeah. Looks close to mine but hard to tell
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