Axle bump stops vs dropped MM

[Dobs]

I want to know what dropped MM owner made to replace or modify the stock axle bump stops which are too tall when dropped more then 1.5"

[Krytin]

Been over 5 years now but I believe it was these or something very close.

Metal-Core Bumper


with Thread Stud, Polyurethane, Hard, 3/8"-16 x 3/4" Thread



http://images1.mcmaster.com/Contents/gfx/large/9546kc2l.png?ver=17051425Inch and Metric








In stock
$18.29 Each
9546K64

Each


In stock
$18.29 Each
9546K64






Our bumpers have a built-in stud so you won't need additional fasteners for installation.
Additional information about rubber (http://www.mcmaster.com/#about firmness ratings for rubber) and other vibration mounts (http://www.mcmaster.com/#vibration mounts).
Bumpers with a metal core withstand impact with a tough steel core that is surrounded by cushioning material. For indoor and outdoor use. Medium-soft bumpers have a durometer hardness of 40A. Hard bumpers have a durometer hardness of 70A-80A.
Polyurethane bumpers are abrasion and ozone resistant. Temperature range is –65° to +200° F. Material is marking but nonstaining. Color is red.
Additional information about rubber (http://www.mcmaster.com/#about firmness ratings for rubber) and other vibration mounts (http://www.mcmaster.com/#vibration mounts).

Diameter (A)1 1/2"Height (B)13/16"Thread Size3/8"-16Thread Length (C)3/4"Rubber Thickness (D)1/4"Additional SpecificationsBumpers with Metal CorePolyurethaneHardInch
http://www.mcmaster.com/gfx/print.gifPrinthttp://www.mcmaster.com/library/20130520/9546k640l.gif

The information in this 3-D model is provided for reference only. Details (http://www.mcmaster.com/#)

[Krytin]

No this one.

Metal-Core Bumper


Threaded Stud, Polyurethane, Hard, 3/8"-16 x 1" Thread



http://images1.mcmaster.com/Contents/gfx/large/9546kc2l.png?ver=17051425Inch and Metric








In stock
$13.09 Each
9546K65

Each


In stock
$13.09 Each
9546K65







Our bumpers have a built-in stud so you won't need additional fasteners for installation.
Additional information about rubber (http://www.mcmaster.com/#about firmness ratings for rubber) and other vibration mounts (http://www.mcmaster.com/#vibration mounts).
Bumpers with a metal core withstand impact with a tough steel core that is surrounded by cushioning material. For indoor and outdoor use. Medium-soft bumpers have a durometer hardness of 40A. Hard bumpers have a durometer hardness of 70A-80A.
Polyurethane bumpers are abrasion and ozone resistant. Temperature range is –65° to +200° F. Material is marking but nonstaining. Color is red.
Additional information about rubber (http://www.mcmaster.com/#about firmness ratings for rubber) and other vibration mounts (http://www.mcmaster.com/#vibration mounts).

Diameter (A)1 1/4"Height (B)1 1/4"Thread Size3/8"-16Thread Length (C)1"Rubber Thickness (D)1/2"Additional SpecificationsBumpers with Metal CorePolyurethaneHardInch
http://www.mcmaster.com/gfx/print.gifPrinthttp://www.mcmaster.com/library/20130520/9546k650l.gif

The information in this 3-D model is provided for reference only. Details (http://www.mcmaster.com/#)

[Dobs]

Thanks a lot. I didnt know McMaster-Carr, they have tons of nice products.

[lifespeed]

First one is too short? Are these a bolt-in replacement? How much travel increase?

[Krytin]

First one was the wrong one.
Not so much an increase but allows the suspension to travel and NOT hit the frame rails when lowered. I've been using the taller/second one above w/the rear height adjustment sensor set as low as it will go.

[lifespeed]

I seem to recall you adjusted the pinion angle to match.

[Krytin]

Yes I did - with a little help from Tom from SpartaPerformance.
There are some pictures of the adjustable lower control arms in my gallery in the photo section.

[lifespeed]

Did you notice a reduction in spring rate?

[Krytin]

I was expecting it but could not detect any difference.

[Dobs]

Finally i have installed Energy Suspension all purpose bump stop #9.9101R (the R is for red, you can get it black too #9.9101B).

I installed those because they are made of quality polyurethane, perfect size, fit and made for this purpose. Original Ford bump stop are 3" 3/4 tall vs 2" 1/4 for the Energy. This make a difference of 1" 1/2 which is exactly the drop on my car, plus they have about the same footprint. The stud is 3/8 vs 8mm for the Ford so I had to oversize the hole a little bit.

http://pages.videotron.com/webdober/IMG_2845-1.jpg

[Limited360]

I need to look into this... I want to bring the back down to match front height but concerned on the rear clearance..


http://img.tapatalk.com/d/13/08/26/a9y6agut.jpghttp://img.tapatalk.com/d/13/08/26/emu4ubaz.jpg
http://img.tapatalk.com/d/13/08/26/bumujyve.jpg


I've heard rear only hit the bump stops once or twice, be nice to put the shorter and stiffer bump stops in..

[Dobs]

This is exactly what you need

[Limited360]

Where did you procure these from?

$$10 on ebay...

[lifespeed]

I went with the Energy Suspension 9.9154 (http://www.prothane-suspension.com/proddetail.asp?prod=9.9154) as it looked like it would provide a nicer arrest of the rear suspension. I cut the tab off and drilled the axle mounting bracket for the 3/8" bolt vs M8 stocker. I don't hit the bump stops that often, so hard to know how well they work until I get softer shocks on the rear that allow greater freedom of movement and utilization of the full travel.

http://www.carid.com/images/energy-suspension/suspension-systems/9-9154g.jpg

[Dobs]

Where did you procure these from?

$$10 on ebay...

You can get them in about any speed shop, very easy to find.

[Limited360]

You can get them in about any speed shop, very easy to find.

Sounds good. Thanks for the info!

Really want to make the car sit a bit more even is all, has far to much rake!

[Limited360]

Ordered these up... Will be putting them on hopefully this weekend, once on I plan on making the car sit a bit more level, should fix the over raked look I have.

Thanks guys for the info!

[Dobs]

Don't forget that you can cut them to adjust clearance if more needed, they are made for that.