IFS Drivetrain System

Independent Front Suspension Drive train System.
This state-of-the-art modular drive train system that enables All Wheel Drive (AWD) commercial trucks to operate safely and productively. The system consists of a heavy-duty Independent
Front Suspension (IFS) module equipped with modern steering geometry and air disc brakes technology, and a low profile shift-on-the-fly transfer case. The IFS, available as drive or non-drive, is part of the company’s field-proven and widely-acclaimed Independent Suspension Axle Systems (ISAS®). This bolt-on modular solution, does not require modifying the vehicle’s existing frame rails, maintains vehicle ride height, and offers superior ride, handling, and safe controls.

Heavy Duty Transaxle is an authorized dealer for Axletech International. Contact us for more information on Axletech Independent Front Suspension options and pricing

Features & Benefits
Proven Independent Suspension Axle System
technology
The ISAS® product line has been fitted on high-mobility vehicles for over
20 years. The Independent Front Suspension system leverages decades
of expertise in designing and manufacturing field-proven systems.
Bolt-on system The Independent Front Suspension is a bolt-on system and does not
require modifications to frame rails.
5 to 12 inch ride height reduction The 5 to 12 inch height reduction improves vehicle roll stability vs. best-
in-class beam axle mechanical AWD. Modular solution maintains the
same ride ride height of a RWD truck.
Lower center of gravity Better vehicle maneuverability and stability for safer and more confident
handling.
60% reduction in cab and driver-absorbed
power
Ride harshness improvements as well as reduction in unwanted steering
feedback lead to less physical fatigue for the driver, and higher reliability
of the cab.
2-times the wheel travel The Independent Front Suspension provides 2-times the wheel travel
compared to leaf spring front beam axles, which reduces peak stresses
and loads onto the vehicle chassis, leading to improved component reliability.
Highly functional transfer case design Low-profile transfer case provides shift-on-the-fly capabilities from low
to high, or high to low speeds for reliable and controllable shifting.
Modern steering geometry Upgraded truck handles and steers like a SUV compared to standard
AWD truck.
Air disc brake with ventor rotor Superior brake fade resistance and stopping power.
Technical Specifications:
Transfer Case
Transfer case model AT1224
Engine power HP (kW) 450 (336)
Maximum input speed RPM 4,000
Torque capacity - high range ft/lbs. (Nm) 13,000 (17,630)
High speed ratio 1:1
Low speed ratio 2.02:1
Differential None; Front axle pneumatic lockable
Housing type Aluminum
Drop sizes in (mm) 7.05 (179) vertical drop, 11.02 (280) horizontal offset to right
Weight lb (kg) 605 (275)
Options Speed sensor, stand-alone verion, park brake
Technical Specifications:
Independent Front Suspension
Drive Axle Non-Drive Axle
Configuration Double-wishbone with compliant upper
control arm control bushing with inverted
dual steering box layout
Double-wishbone with compliant upper
control arm control bushing with inverted
dual steering box layout
Rating lb (kg) 16,000 to 22,000 (7,250 to 10,000) 16,000 to 22,000 (7,250 to 10,000)
Axle system weight lb (kg) 3,150 (1,429) including sub-frame 2,493 (1,131) including sub-frame
Axle system type Central compliantly mounted drop carrier
with planetary reduction wheel ends
Not applicable
Axle ratios 4.48 to 10.48 Not applicable
Planetary ratios 3.56 to 4.63 Not applicable
Differential Open Not applicable
Wheel mount in (mm) Hub-piloted 10 stud 13.19 BC (335)
with future option 11.25 BC (285.75)
Hub-piloted 10 stud 13.19 BC (335)
with future option 11.25 BC (285.75)
Brakes Outboard air disc brake, vented rotor Outboard air disc brake, vented rotor
Outboard air disc brake, vented rotor Hot rolled coil springs Hot rolled coil springs
Shocks High capacity twin-tube shocks with
integrated bump aid
High capacity twin-tube shocks with
integrated bump aid
Total wheel travel in (mm) 11.8 (300) 11.8 (300)
Minimum rim size in (mm) 22.5 rim (572) with 65/385 to 65/425 tire 22.5 rim (572) with 65/385 to 65/425 tire
Hub flange to flange in (mm) 94.8 (2,409) 94.8 (2,409)
Track width in (mm) 84.25 to 85.43 (2,140 to 2,170) 84.25 to 85.43 (2,140 to 2,170)
Pinion joint series KV 150, KV 180, SAE 1710 or 1810, 16TYS
or 17TYS, MECH 6C, 7C or 8.5C
Not applicable
Steering joint type CV joints with ball spline plunge Not applicable
Max steering angle 32° 32°
Camber 0° +- 1° adjustable 0° +- 1° adjustable
Ride camber -15°/m -15°/m
Roll center height in (mm) 9.84 (250) 9.84 (250)
Ride steer 5°/m understeer 5°/m understeer
King pin inclination 8.9° 8.9°
ABS hub compatibility Standard Standard
Input rotation Clockwise into pinion Not applicable

 

 

 

 

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