Rock Rail Bolt Torque
#1
JK Junkie
Thread Starter
Join Date: Dec 2008
Location: Kzoo, MI
Posts: 2,070
Likes: 0
Received 0 Likes
on
0 Posts
Rock Rail Bolt Torque
I am just finishing up an install of LoD sliders and just wanted to know what torque everyone is tightening theirs to. There aren't many threads so I don't want to go too far, I was thinking around 35-40 ft-lbs?
Also, grade 8 vs grade 5 bolts, I'm wondering if grade 5 bolts would be better since they're less prone to shearing than grade 8 which are harder. The forces that will be applied to the bolts look like they will have more of a shearing action. I know typically grade 5 is plenty for most things.
Thanks in advance for the help
Also, grade 8 vs grade 5 bolts, I'm wondering if grade 5 bolts would be better since they're less prone to shearing than grade 8 which are harder. The forces that will be applied to the bolts look like they will have more of a shearing action. I know typically grade 5 is plenty for most things.
Thanks in advance for the help
#2
JK Junkie
Thread Starter
Join Date: Dec 2008
Location: Kzoo, MI
Posts: 2,070
Likes: 0
Received 0 Likes
on
0 Posts
Well I've read elsewhere that because they are tapped into the thin wall of the frame you shouldn't go more then 20 or 25 ft-lbs to avoid stripping the threads in the thin wall, seems like not much torque, but I guess when you've got 10 bolts holding these things up you don't need much more
#3
JK Enthusiast
Join Date: Feb 2009
Location: Indianapolis, Indiana
Posts: 383
Likes: 0
Received 0 Likes
on
0 Posts
LoD Bolt Torque
I am just finishing up an install of LoD sliders and just wanted to know what torque everyone is tightening theirs to. There aren't many threads so I don't want to go too far, I was thinking around 35-40 ft-lbs?
Also, grade 8 vs grade 5 bolts, I'm wondering if grade 5 bolts would be better since they're less prone to shearing than grade 8 which are harder. The forces that will be applied to the bolts look like they will have more of a shearing action. I know typically grade 5 is plenty for most things.
Thanks in advance for the help
Also, grade 8 vs grade 5 bolts, I'm wondering if grade 5 bolts would be better since they're less prone to shearing than grade 8 which are harder. The forces that will be applied to the bolts look like they will have more of a shearing action. I know typically grade 5 is plenty for most things.
Thanks in advance for the help
Sorry to respond so late... I meant to answer you this weekend.
I did not torque mine... I just kind of did it by feel.
I did use blue Loctite on the threads, though. Not so much for strength as for keeping them from backing out if they loosened slightly.
Mine are two doors, and there was only one of the four mounting locations that didn't have either a skid plate bolt, or a bolt completely though the frame rail. If there had been something other than frame-tapped bolts on the forth location, I wouldn't be too concerned.
I plan on keeping an eye on them, and if necessary have them welded to the frame.
I hope the installation went well for you.
Take Care
Jeff