Replacing upper ball joints, what size bolts?
Thread Starter
Instructor
Joined: Jan 2021
Posts: 134
Likes: 22
From: Houston, Texas
Replacing upper ball joints, what size bolts?
As the title indicates, I'm replacing ball joints and my uppers came with rivets. I won't be using them prefer to bolt them in place instead.
What size bolts do I need? I know to get grade 8 but not sure of size and length. Thanks for any help!
What size bolts do I need? I know to get grade 8 but not sure of size and length. Thanks for any help!
Old Fart Pilot
Joined: Apr 2010
Posts: 1,929
Likes: 1,001
From: Spokane, WA
It really helps if you mention your car's year and model when asking questions like this. However, I see in your profile that you have a '75
The MOOG replacement ball joints for my '71 coupe that I got from Rock Auto came with the bolts...
Best I can recall is that they were 1/4" x 1" or 1-1/4". The bolts come up from the bottom of the CA and there is room on the upper nut side if you want to get them a bit longer.
Is it too late to return yours with rivets and get others with the bolts included?
The MOOG replacement ball joints for my '71 coupe that I got from Rock Auto came with the bolts...
Best I can recall is that they were 1/4" x 1" or 1-1/4". The bolts come up from the bottom of the CA and there is room on the upper nut side if you want to get them a bit longer.
Is it too late to return yours with rivets and get others with the bolts included?
Last edited by nwav8tor; May 30, 2022 at 01:00 AM.
Race Director
Joined: Jul 2015
Posts: 13,082
Likes: 3,399
From: SW Florida.
take the rivets to lowes or fastenal. use them to tell you what size shank. grade 5 fine thread. they wouldn't have riveted them if it needed something like grade 8. lowes has a better fastener section than home depot these days.
