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ruebarb

Posts: 40

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Jan 11 14 10:11 AM

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My home made rear bump stop spacers are a success. They aren't pretty like the MT, they have machines marks and are rough cut, not visible when installed, but they only weight 2lb each, will never rust or corrode and will never need to be painted, plus they are half the cost. They have a 7/8" rear offset, couldn't do the 3/4".


If anyone is interested in a set, let me know.

Materials
6x6x3 UHMW 4296A172 (Pick the thickness you want)- McMaster-Carr
5/16 Washer 98180A120 - McMaster-Carr
Flange Nut M8 x 1.25 92461A400- McMaster-Carr

Bolts for 3"
Step 1 M8 x 1.25 x 75mm 91310A556- McMaster-Carr
Step 2 & 4 M8 x 1.25 x 100mm (95 would be best, not available) 91310A566- McMaster-Carr
Step 3 M8 x 1.25 x 90mm 91310A562- McMaster-Carr
3/8" drill bit
3/4" spade bit (hole saw)

Bolts for 2"

Step 1 M8 x 1.25 x 50mm 91310A546 - McMaster-Carr
Step 2 & 4 M8 x 1.25 x 70mm (95 would be best, not available) 91310A554- McMaster-Carr
Step 3 M8 x 1.25 x 60mm 91310A550-
McMaster-Carr

They are made from Impact-Resistant Slippery UHMW (Plastic). Specs below.

Abrasion-Resistant HMW
Tensile Strength, psi -5,600
Rockwell Hardness - Shore D69
Impact Strength, ft.-lbs./in. - No Break
Density lbs/in3 - 0.034 1
Thermal Expansion in/in/DegreeF - 10 neg4

















Install - off frame & on frame example
Step 1 - Install bolt on bump stop





Step 2 - Install bolt into frame bracket




Step 3 - Install 2nd bolt into frame bracket



Step 4 - Swing bump stop over and install last bump stop bolt


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ruebarb

Posts: 40 Site Admin

#1 [url]

Jan 19 14 10:07 AM

Re: Rear Bump Stop Spacers

I decided the 3" is just way overkill, made 2", bolt lengths for 2" in 1st post







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