Overview
The Dana Spicer 37300 is a king pin spring for the Dana 60 front axle, sold for one side only. It is intended to address looseness in the knuckle assembly, and wear should be checked to confirm whether a spring alone is the right fix.
The part is identified by Dana 60 axle type and front location. No truck, Jeep or model year is named.
Key features
- King pin spring for the front knuckle assembly
- Intended to address looseness in the knuckle
- Single side only
- Made for the Dana 60 front axle
Diagnosing front end looseness
Looseness at the front knuckle can come from several sources, including worn king pin bushings, a tired spring, or wear in the thrust surfaces. Before fitting any spring, lift the axle safely and check for movement at the knuckle with the wheel rocked top and bottom. Movement that stays after the spring is replaced usually points to a worn part that needs its own repair.
King pin springs work with the rest of the knuckle assembly, so related parts such as bushings, seals and thrust bearings are often inspected at the same time. Keep track of which side each part came from, and clean the mating surfaces before reassembly to avoid carrying grit into fresh parts. Handle the spring with the correct tools to avoid bending it.
- Check bushings for play
- Inspect seals for leaks
- Measure thrust bearing wear
Specifications
| Brand | Dana Spicer |
|---|---|
| Part number | 37300 |
| UPC | 23913139315 |
| Part type | King pin spring |
| Axle location | Front |
| Axle type | Dana 60 |
| Sides | One side |
Vehicle fitment
It is made for the Dana 60 front axle, the only fit detail known. Confirm fit for your vehicle’s year, model and trim before ordering.
Confirm fit for your vehicle’s year, model and trim before ordering, especially if the axle is a Dana 61 or a rear unit.
Installation notes
Replacing a king pin spring means taking the knuckle apart, so have an axle shop handle the job and check the knuckle fit afterward.
What’s included
One king pin spring for one side.
