Gabriel 85712 Fleetline Heavy Duty Shock Absorber - Commercial Fit

In this review the Gabriel 85712 Fleetline heavy duty shock absorber is assessed for fleet and commercial use; it is aimed at mechanics, fleet managers and RV or bus owners who need a direct replacement for Ridewell, Raydan/Meritor and several OEM chassis. The bottom line: the unit delivers a firmer, controlled ride and straightforward fitment for Class 3-8 vehicles, Blue Bird buses, Country Coach motorhomes and many fire or utility chassis, making it a strong choice when the priority is replacement parts compatibility and value for money.

Key Features

• Wide vehicle fitment: Designed to replace a long list of OEM numbers and fit Ridewell, Raydan/Meritor and multiple Blue Bird, Country Coach and Spartan chassis so buyers avoid compatibility guesswork.
• Commercial duty construction: FleetLine valving and construction are built to handle heavy loads and repeated stop/start duty typical of buses, RVs and fire apparatus.
• Specific mounting codes: Comes with EB3 upper and EB3 lower mount configuration to match common commercial suspension mounting standards for a direct swap.
• Measured travel: With a 7.04'in stroke and 20.5'in extended length, it matches the movement range expected on low friction and air ride suspensions.
• OEM interchange list: Includes many cross numbers such as A-4890, 6130029 and 700115 so fleet parts managers can confirm fit by existing part references.

Who It's For

The Gabriel 85712 is best for fleet operators, bus maintenance shops and RV owners who need a heavy duty, direct replacement shock for Blue Bird buses, Country Coach motorhomes, Ridewell and Raydan/Meritor suspensions. Its long list of interchange numbers and commercial mount codes make it practical for those who manage repairs across multiple vehicle models and need predictable fitment.

Owners seeking a long-term, problem-free lifetime should be aware that some users report premature failures or leakage in extreme service conditions; those wanting extended warranty coverage or specialty rebuildable shocks might prefer a different option.

Pros & Cons

Pros

• Good fit and compatibility across many Class 3-8 vehicles and bus or motorhome chassis.
• Improves ride control and handling on rough roads compared with worn OEM units.
• Commercial-grade valving designed for heavy-duty fleet use and repeated cycles.
• Easy installation for shops familiar with EB3 mount configurations.

Cons

• Some customers report durability issues or oil leakage in heavy use, so longevity can vary by duty cycle.
• Not a rebuildable or specialty performance shock for custom suspension tuning needs.

Specifications

Stroke	7.04 in
Extended Length	20.5 in
Collapsed Length	13.47 in
Upper Mount Code	EB3
Lower Mount Code	EB3
Series	FleetLine 85000 series
Interchange Examples	A-4890, 6130029, 700115

Our Verdict

The Gabriel 85712 Fleetline is a practical, cost-effective replacement for commercial vehicles that need a direct-fit shock with strong initial ride control and broad OEM cross-reference coverage. It is a good value for fleets and repair shops looking to restore handling and extend suspension life quickly, though buyers in extreme duty cycles should monitor for leakage or early wear.

Frequently Asked Questions

Will this shock fit my Blue Bird bus?
Check mounting codes and interchange numbers; this unit lists fitment for Blue Bird 35'in chassis front and many Blue Bird TC2000 models, so confirm dimensions match your chassis.

Is this shock suitable for fire truck Ridewell suspensions?
Yes, it is specified for Ridewell truck air-ride front and rear suspensions and several Spartan and Seagrave fire apparatus chassis in the interchange list.

Are these rebuildable or adjustable?
No, FleetLine shocks are heavy duty direct replacements with fixed valving; they are not rebuildable or adjustable performance shocks.