Suspension Upper control arm bolts too short?

alutwon

Member
Dec 10, 2020
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Hi all, I just installed new steeda rear upper and lower control arms in my 89. Now i might just be a bit paranoid but the upper bolts on the axle side seem to be a little short. Everything threaded through fine and its all torqued down to 90 ft/lbs but the bolts are just barely through the end of the nut, as in i can feel the tip of the bolt sticking out but theres maybe half a thread i can feel. For you guys that have done this before is that normal? I'm probably just paranoid.
 

Mustang5L5

Put lubricant all over the balls
Mod Dude
Feb 18, 2001
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You typically want minimum of 2 threads to protrude. The bolts are typically made with a slightly reduced diameter a the tip to help with installation, so those first couple threads don't really hold 100%, so you'd like to be past them ideally.

Nylock nuts are slightly different. You'll want 3-5 threads past those to give the nylon insert something to hold onto if it does loosen up
 

alutwon

Member
Dec 10, 2020
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Yea idk whats up the new arms are the same size as the old ones so i dont think anythingsl wrong, guess they are just like that. Like i said earlier i can feel a single thread poking out so it in there. I also used the maximum motor sports tool so i know the bushings are in correctly
 

General karthief

wonder how much it would cost to ship you a pair
Mod Dude
Aug 25, 2016
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alutwon

Member
Dec 10, 2020
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Alright so apprently the stock bolts are only 80mm which ford thought was okay. I'm definitely going to upgrade to 90mm to be safe though. I figured I would post this just in case any one else has this problem. Thank you everyone for your help :)