Threaded Rod, U-Bolts, & Spring Accessories May 2015

U-Bolts

Special Semi-Round Bend Descriptions

Spring Width

Bend Type

Dim. A Dim. B

Make

Front/Rear

Model

2 ⁹⁄₁₆ 3 ¹⁄₁₆ 4 ¹⁄₁₆ 4 ¹⁄₁₆ 4 ¹⁄₁₆ 2 ⁹⁄₁₆ 2 ⁹⁄₁₆ 3 ¹⁄₁₆ 3 ¹⁄₁₆ 3 ¹⁄₁₆ 3 ¹⁄₁₆ 3 ¹⁄₁₆ 3 ¹⁄₁₆ 3 ⁹⁄₁₆ 3 ⁹⁄₁₆ 4 ¹⁄₁₆ 4 ¹⁄₁₆ 4 ¹⁄₁₆ 4 ¹⁄₁₆ 4 ¹⁄₁₆ 3 ¹⁄₁₆ 3 ¹⁄₁₆ 3 ¹⁄₁₆ 3 ⁹⁄₁₆ 3 ⁹⁄₁₆ 4 ¹⁄₁₆ 4 ¹⁄₁₆ 4 ¹⁄₁₆ 4 ¹⁄₁₆ 4 ¹⁄₁₆ 4 ¹⁄₁₆ 4 ¹⁄₁₆ 4 ¹⁄₁₆ 4 ¹⁄₁₆ 5 ¹⁄₁₆ 5 ¹⁄₄

2 ¹⁄₂

FR FR IR CR

Ford

Front Front Front Front Front Rear Rear Rear Front Rear Rear Rear Rear Rear Front Front Front Front Front Front Rear Rear Rear Rear Rear Front Front Rear Rear Front Rear Rear Front Rear Rear Rear

B, F, LN

⁵⁄₈

3 4 4 4

Navistar

Medium “S”

⁵⁄₈

GMC / Chevrolet

50, 60, 70, (TopKick, Kodiak) - After 1989

⁵⁄₈

Ford

L

⁵⁄₈

IR

Navistar

Fleetstar

⁵⁄₈

2 ¹⁄₂ 2 ¹⁄₂

CR

GMC / Chevrolet GMC / Chevrolet GMC / Chevrolet GMC / Chevrolet GMC / Chevrolet

50, 60, 70, Single Axle - Before 1990

³⁄₄

CR1 CR1 CR2 CR3

P

³⁄₄

3 3 3 3 3 3 4 4 4 4 4 3 3 3 4 4 4 4 4 5 4 4 4 4 5

50, 60, 70, Single Axle - Before 1990

³⁄₄

50, 60, 70 - Before 1990

³⁄₄

50, 60, 70, (TopKick, Kodiak) Single Axle - After 1989

³⁄₄

FR IR

Ford

B, F, L, LN, Single Axle

³⁄₄

GMC / Chevrolet

C3500HD

³⁄₄

IR2

Navistar Navistar Peterbilt

“S” Single Axle

³⁄₄

3 ¹⁄₂ 3 ¹⁄₂

IR

Heavy Duty Single Axle and Tandem Axle

³⁄₄

PR2

³⁄₄

CR FR HS

GMC / Chevrolet

50, 60, 70, (TopKick, Kodiak) - After 1989

³⁄₄

Ford

CL, F, L

³⁄₄

Kenworth Navistar Peterbilt

(Same bend as Hendrickson) Fleetstar, Heavy “S”, Transtar

³⁄₄

IR

³⁄₄

PR

³⁄₄

CR1 CR3 FR IR PR FR FR HS HS HS FS PR PR MR MR MR

GMC / Chevrolet GMC / Chevrolet

50, 60, 70, Single Axle - Before 1990

⁷⁄₈

50, 60, 70, (TopKick, Kodiak) Single Axle - After 1989

⁷⁄₈

Ford

B, CL, F, L, LN, Single Axle

⁷⁄₈

3 ¹⁄₂ 3 ¹⁄₂

Navistar Peterbilt

Heavy Duty Single Axle and Tandem Axle

⁷⁄₈

Single Axle

⁷⁄₈

Ford Ford

L L

⁷⁄₈

⁷⁄₈

Hendrickson Hendrickson Kenworth Freightliner

RU, RUE, U, UE-340 RU, RUE, U, UE-340

⁷⁄₈

⁷⁄₈

(Same bend as Hendrickson)

⁷⁄₈

FAS II Airliner

⁷⁄₈

1 1

Peterbilt Navistar

Air Leaf, Air Trac

Fleetstar, Heavy “S”, Transtar (Same bend as Peterbilt)

1 ¹⁄₈ 1 ¹⁄₄ 1 ¹⁄₄

Mack Mack Mack

ST34, ST38

4" Wide Camelback Springs 5" Wide Camelback Springs

How to Order

When ordering Dayton Parts, Inc. U-Bolts, specify grade of material to be shipped: Include Prefix 5 (ex: 5U-4410R) with part number for grade 5 equivalent, diameter sizes ” - ”. Include Prefix 8 (ex: 8U-4410R) with part number for grade 8 equivalent, diameter sizes ” - 1 ”.

2