Comanche 4WD L4-150 2.5L VIN H TBI (1986)
Suspension Spring ( Coil / Leaf ): Technical Service Bulletins
Suspension - Spring Type Identification & Application
JUNE 1986
001 036
1986 COMANCHE MODELS
14E
SUSPENSION
Attention: Workshop, Parts Department
SUSPENSION SPRING IDENTIFICATION AND APPLICATION
Information
The suspension is available in three classifications: Standard, Soft-Ride and Heavy Duty Off-Road.
The Standard suspension is designed for normal everyday driving and moderate off-road operation. The Soft-Ride suspension offers a smoother ride on
models operated principally on paved roads. The Heavy Duty Off-Road suspension is recommended for trailer towing, snow plowing and extended
off-road operation in addition to normal everyday driving.
Suspension Spring Identification
Front and rear suspension springs are identified by a two-letter alpha code. The first letter indicates spring type (e.g. Standard, Soft-Ride, Heavy Duty).
The second letter indicates spring rate which progresses in alphabetical sequence from lowest to highest. Refer to the spring chart for front/rear spring
codes, part numbers and classification.
^
The code for production and replacement front coil springs is printed on a plastic tag attached to one of the spring coils.
^
The code for production and replacement rear leaf springs is stamped on the bottom of the main leaf or on the spring clip.
Vehicle Attitude
The slight forward rake is by design and is not to be misdiagnosed as a front or rear spring problem. Normal variances in ride height between models is
generally due to different options and suspension type.
Suspension Spring Selection
Spring selection is determined by suspension type and optional equipment such as type of engine and transmission, air conditioning, or towing package.
The type of driveline (twoor four-wheel drive) is also taken into consideration. In addition, the left front spring may have a higher rate to accommodate
driver weight when only one person is using the vehicle.
Vehicle Ride Height
Because of the wide range of optional equipment available on Comanche models, vehicle ride heights will vary. A side-to-side variance of plus or minus
13 mm (1/2 inch) is considered normal. However, if height variance appears greater than this, front or rear ride height can be checked as follows.
Fig. 1 - Axle Tube and Frame Sill Location
