Parallelogram Steering Linkage See Chapter 9

Parallelogram Steering Linkage Defined as: one in which the tie rods are mounted parellel to the lower control arms Side by Side

What is it used on? This type of steering linkage is used on most pickups and rear wheel drive cars

Components See Page - Class 205

It can be either way Front mounted steering linkage Rear mounted steering linkage

Pitman Arm Connects the steering gear to the steering linkage

Pitman Arm Attached to the steering gear Pitman

Two styles of Pitman arms

Idler Arm Holds up one side of the steering linkage

Idler Arm

Different styles of idler arms used on steering linkages Note the wear points Very high maintiance item

Center link Connects the Pitman to the Idler arm Holds tie rods at the right height

Different Styles Center Links

Tie Rods

Tie Rod placement and length is important It must be parellel and close to the same length in order for the toe in to stay constant during jounce and rebound

The MOST CRITICAL tire wearing angle

Tie Rod Spring loaded type Pivot point for the linkage during turning and suspension bounce Some mechanics over sell by using a large angle headed pliers to test the tie rod end

Tie Rod

Tie Rod Sleeve Function To adjust tie rod length

Tie Rod Sleeve

Excessive toe in or toe out Inside edge Toe out wears the inside edge Toe in wears the outside edge

Excessive toe in or toe out Scuffing wears off the edge of each tread rib.

Tie Rod Sleeve Adjustment tool 3/8” drive

Dry Park Check This method is an effective way to check for worn parts which will find any problems yet does not over sell parts

With the full weight of the vehicle on the tires, turn the steering wheel back and forth a small amount, quickly

Steering arms

Toe out on turns

Another steering linkage style What kind of burger? Another steering linkage style

Haltenburger Haltenburger style used on Ford pickups

Haltenburger Older pickups Haltenburger style used on See Page - Class 209