Missing sway bar bolts. Anyone know what size they are?

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Edelbrock

Member
Joined
Mar 28, 2025
Posts
77
Reaction score
36
Location
Earth
First Name
Grumba
Truck Year
1977
Truck Model
K5 Blazer
Engine Size
400
So I'm missing the bolts that connect the sway bar ends to the top of the leaf spring. Anyone know what size they are? What bolts would I order?
 

nvrenuf

Full Access Member
Joined
Jul 30, 2010
Posts
2,129
Reaction score
2,897
Location
Mobile, Al.
First Name
John
Truck Year
1991
Truck Model
K5
Engine Size
454
They don't mount to the frame with end links?

No, on a 4wd the ends of the sway bar have eyelets for a large bolt that goes into the leaf spring u-bolt plates.
 

Bextreme04

Full Access Member
Joined
May 13, 2019
Posts
4,525
Reaction score
5,782
Location
Oregon
First Name
Eric
Truck Year
1980
Truck Model
K25
Engine Size
350-4bbl
So I'm missing the bolts that connect the sway bar ends to the top of the leaf spring. Anyone know what size they are? What bolts would I order?
Stock setup: https://www.lmctruck.com/suspension...eH_KVA7z3McJ3CTTGeylq3mfy4CyM5C0n4rgrWz4TQt8-

If you have at least a 2" lift, I highly recommend the ORD disconnect kit. It really unbinds the front swaybar and makes the ride 100% better.
https://www.offroaddesign.com/swayb...kfrCe04_lJfITiD8lvGwAgGVbVAyOIxJ2t4s4wVN1eZvK
 

Edelbrock

Member
Joined
Mar 28, 2025
Posts
77
Reaction score
36
Location
Earth
First Name
Grumba
Truck Year
1977
Truck Model
K5 Blazer
Engine Size
400

ButchM

Member
Joined
Oct 19, 2023
Posts
46
Reaction score
72
Location
Idaho
First Name
Butch
Truck Year
1986
Truck Model
K30
Engine Size
454
So I'm missing the bolts that connect the sway bar ends to the top of the leaf spring. Anyone know what size they are? What bolts would I order?
Grumba, you asking for the 77 K5 Blazer?
 

ButchM

Member
Joined
Oct 19, 2023
Posts
46
Reaction score
72
Location
Idaho
First Name
Butch
Truck Year
1986
Truck Model
K30
Engine Size
454
So I'm missing the bolts that connect the sway bar ends to the top of the leaf spring. Anyone know what size they are? What bolts would I order?
Grumba
Just did some digging (see below, part no 29), all the 4WD use the same bolt. Its 3/4-10 x 3 1/4". The OEM part number is 328130.
Sourcing aftermarket you should ensure the bolt is grade 8 case hardened. That length may be hard to find but a 3 1/2" could easily be shortened.
Good Luck
Butch

You must be registered for see images attach
You must be registered for see images attach
 

Edelbrock

Member
Joined
Mar 28, 2025
Posts
77
Reaction score
36
Location
Earth
First Name
Grumba
Truck Year
1977
Truck Model
K5 Blazer
Engine Size
400
Grumba
Just did some digging (see below, part no 29), all the 4WD use the same bolt. Its 3/4-10 x 3 1/4". The OEM part number is 328130.


Very cool. Thanks man. Much appreciated.
 

Forum statistics

Threads
45,358
Posts
981,461
Members
38,381
Latest member
Burban90
Top