U bolt dimensions

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.

Shields

Member
Joined
Apr 9, 2016
Posts
37
Reaction score
19
Location
Kelowna
First Name
Dayton
Truck Year
1976
Truck Model
C10
Engine Size
6.3
as the title says I just wanted to verify the U bolt dimensions for a 12 bolt. 3" width x 7" length x 9/16 thread right? I have a belltech flip kit installed and need to know before I drop $80 on u bolts a local shop will fab up. Does the flip kit use a stock U-bolt?
 

theblindchicken

Full Access Member
Joined
Oct 24, 2013
Posts
1,518
Reaction score
265
Location
SoCal
First Name
Christian
Truck Year
1974
Truck Model
K10 5" lift + 2" BL
Engine Size
350-4, 0.030" over
A bit late,

The 12-bolts are indeed 3" axle tubes. For length you need, you can take the thickness of spring pack (probably 3-5") + the axle tube diameter (3") add on an inch for the nut and a half inch for threading.

If I remember correctly, 9/16" does sound correct.

$80 for a set of ubolts is quite expensive..

Was about $40 at a shop near me and that was for extended ones as well.
 

Honky Kong jr

Super Sarcastic Man
Joined
Jun 14, 2016
Posts
14,968
Reaction score
9,845
Location
Denver,PA
First Name
J-me
Truck Year
87
Truck Model
V10
Engine Size
Lil BB 407
Bolt diameter is 5/8"
 

Latest posts

Forum statistics

Threads
45,467
Posts
984,070
Members
38,521
Latest member
luis1jr
Top