684
Reference
www.daytonparts.comfor continuing updates.
Suspension Illustration
Key Numbers with an asterisk (*) indicate a kit or assembly.
Neway
Neway
ARDAB 120/238/240
Drive Axle
Air Suspension
2° 30'
2° 30'
TYPE 2
2° 30'
Offset Bushing (
)
Key 12
6
6
2°-8° Pinion Angle
8.1°-13° Pinion Angle
(2)Offset Bushings (
)
Key 12
Straight Bushing (Key 12)
TYPE 1
2° 30'
23
22*
20*
19*
7*,12*
7*,12*
7*,9
7*
8
6
11
10
13 17
14*
7*
14*
14*
14*
15
16
25
25
13
14
15
5
1
2*
2*,3
5
4
10
10
18
19*
26
27
19*
24
19*
21
22
IMPORTANT:
Axle connection bushings must be installed correctly to accommodate the axle pinion angle.
The Neway Air-Beam bushing replacement tool (part number 505 44 012 - Key 28) must be used for the procedure.
IMPORTANT:
When ordering axle connection bushings, and/or shims, specify the correct beam type so that it will fit
and maintain the correct pinion angle. It is critical that you use the following step-by-step procedure when ordering and
installing a beam assembly. Failure to do so can result in axle, drive line, frame and suspension damage.
1) Determine the correct beam type (1 or 2) using the graphics above. If the rear bushing in your beam is straight you
have a type 1 beam, and if the bushing is offset you have a type 2 beam. The type is also located on the serial number
plate attached to the right hand (curb side) beam. If the plate cannot be read, contact your vehicle manufacturer for the
correct pinion angle of your axle.
2)Before disassembling the beam, document the number and location of the axle shims (Key 8) for proper alignment.