Does anyone know the diff drop bolt specs?

[Black798]

I know I know. I've read all the threads regarding the ineffectiveness of a diff drop. But this past weekend I had one of the diff mounts loose and was playing around with some spacers. I could see that a 1 inch spacer did reduce the cv angle. Not by much but by some. So now I'm looking to make my own drop spacers but I can't find the specs for the extended bolt. Does anyone know what they are?

 

[A.Wilson013]

I know I know. I've read all the threads regarding the ineffectiveness of a diff drop. But this past weekend I had one of the diff mounts loose and was playing around with some spacers. I could see that a 1 inch spacer did reduce the cv angle. Not by much but by some. So now I'm looking to make my own drop spacers but I can't find the specs for the extended bolt. Does anyone know what they are?

An inch longer than the factory bolts...? Am I missing something here?

 

[Black798]

Right but I can't find what the specs but I can't find what the factory specs are. No one has them listed in the diagram. They just have the part number

 

[Black798]

Bolt length
Total bolt length - 7.41" 18.82cm
Length from bolt head shoulder to end of bolt - 7.06" 17.94cm

Diameter of bolt - .51" 1.3cm

Diameter of spacer - 1.75" 4.45cm

Material used to make spacer - Mild Steel

Diameter of center hole in spacer - .57" 1.45cm

Bolt head width - .35" .89cm

Captured washer thickness - .155" .39cm

Wrench for bolt head - 19mm

Bolt and nut thread - M14x1.5

Thread length on bolt - 1.6" 4cm

Nut flange diameter - 1.17" 2.96cm

Nut width - .64" 1.63cm

Pulled these off a post over on customtacos. Do thee look like the right ones?

 

[theesotericone]

Pull one of the bolts. Take it to the hardware store. Match the size using the key card that they will have. Add an inch and done. Grade 5 or better. I'd go grade 8. That's three slashes on the bolt head for 5 and six slashes on the bolt head for 8.

Here's some good reading on bolt strength's in general.

Grade 5 vs Grade 8 Fasteners - TineLok

 

[csp]

Metric bolts don't follow the SAE Grade 2/5/8 system.

 

[theesotericone]

Indeed. Thanks for pointing that out. I never realized that metric bolts use a class system as opposed to the more familiar grade system.

 

[NODNARB01]

Metric class 8.8=grade5
Metric class 10.9=grade8
More or less...
Also, be careful about what it does with cv plunge moving the diff. May help at ride height and droop but be horrible at bump.
I know on a ranger it's bad.

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