6.4:1 Ratio, Stiletto Fast Ratio Rack N Pinion, 11-1/4 Inch Width
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11.250 in. Width has 4.625 in. Total Rack Travel
with 1.00 Turn of the Pinion (lock to lock)
The pinion spline is 5/8-36 on this assembly. The pressure angle of this spline is unique to Stiletto Steering assemblies.
We offer several types of weldable splined couplers and U joints with correctly sized splines to achieve a proper and secure connection between a steering shaft or drive unit to the steering box.
Tie Rod Attachment Orientation
Vertical Bolt Centerline
Horizontal Bolt Centerline
Stiletto Steering Systems – Second to None
This is the latest version of the Stiletto “Fast Ratio“ Small Box Rack and Pinion. Utilizing FEA engineering, this NEW Magnum Housing design is 35% stronger, without any weight penalty over the previous model. The increased rigidity and torsional stiffness of the CNC machined Billet 2024-t4 Aluminum housing provides a stronger foundation for sustained gear alignment in abusive applications. Precision fitted with a heat treated alloy rack and pinion that has also proven to enhance longevity, and provide the Swiss Watch movement that is a Stiletto standard.
Originally introduced in 1973, designed specifically as a drag car steering rack, the Stiletto Small box dragster style rack & pinion is compact, lightweight and smooth; the choice of Champions – the benchmark for driving control.
With the unparalleled performance and durability, what started life as the drag race steering box of choice for worlds fastest NHRA rear engine dragsters, has also grown to be the standard race car rack and pinion for many other types of motorsports competitions.
With the quality of materials and workmanship built into a Stiletto Steering Box it takes a lot of races to wear one of these out. So if you ever need to replace yours, we'll be impressed!
You can trust Stiletto Steering's experience and commitment to excellence to deliver you to the winners circle.
The NEW release of the Stiletto "Fast Ratio" Small box Rack and Pinion Steering is Next Level.
Steering Ratio
With the ultra-fast action of this rack-n-pinion at 6.4:1 ratio, this is perfect fit for Micro sprints, small oval track or mini-baja applications.
Popular Uses
Micro/Mini Sprints
Off-Road
Land Speed
Formula FSAE /Mini Baja SAE
Solar/High Mileage
Mini-Modified Pulling Tractors
Outperforms your Expectations
Stiletto Steering box housings are the foundation for the ultimate experience in steering performance – masterpieces of engineering and precision machining.
To obtain the optimum rigidity and torsional stiffness necessary to maintain proper gear alignment, the housing is crafted from ultra tough 2024-T4 billet aluminum.
This aerospace grade aluminum alloy is significantly stronger and has proven to be superior over 6061-T6 or cast aluminum alternatives.
The knowledge gained as the industry leader over the last 5 decades has provided invaluable information about what works – and what doesn't.
The Smart Design
Unnecessary material has been removed in all the right places to save weight without reducing strength where it's needed.
The gear box housing and internals are also stabilized from the effects of thermal stress created during production with a patented Sub Harmonic stress relief process.
All aluminum components are anodized for corrosion resistance, added durability and good looks.
Super Secure & Durable Boots
Positive sealing anodized aluminum "threaded boot collars" provide the ultimate seal and retention of the unique nylon interwoven neoprene boots – adding life by keeping moisture and foreign debris out of the mechanism.
The Aurora PTFE-lined rod ends provide a secure and dependable connection.
We could save a few dollars by using cheaper components as others do – but why sacrifice performance and longevity of an important assembly?
Optimized for Performance
State-of-the art manufacturing methods have elevated Stiletto's legendary 'Swiss Watch' performance by holding critical tolerances to microns.
Both the rack & pinion are crafted of durable heat treated chromium alloy and exceed AGMA specs.
Black oxide conversion coating improves lubrication retention on critical contact surfaces and corrosion protection.
The hardened pinion gear spins on special PTFE impregnated bushings, and the rack glides on micro finish, align-honed, wear resistant silicon-bronze bushings with proprietary formulated Stiletto Lube.
Every detail applied in the construction of a Stiletto Steering rack and pinion steering assembly plays an integral part in delivering Stiletto's benchmark smooth action with near zero backlash and durability.
We can't tell you all the finite steps required to produce an assembly of this caliber – but will share that a Stiletto Steering System rack n pinion should be your only choice.
Rear vs. Front Steer Flexibility
On "rear steer" applications (with the steering arm pointing to the rear), the housing mounting bolts are to be positioned below the rack for proper steering wheel rotation. On "front steer" applications (with steering arm pointing to the front), simply invert the housing when mounting for the proper steering wheel rotation.
This small rack and pinion steering box is versatile.
How to Determine Steering Ratio
The overall ratio of a steering system is determined by the degree of the movement of the front wheels in relation to one turn of the pinion or steering wheel. Example: One turn of the steering wheel (360º) divided by 30º tire movement would have an overall ratio of 12 to 1 (360/30).
This overall ratio is determined with the distance of the rack travel created by one turn of the pinion and the length of the spindle arm that the tie rod connects to. A shorter steering arm will result in faster steering and the overall ratio smaller numerically. A longer arm will result in slower steering and the overall ratio larger numerically.
For reference purposes, the ratios that we list are calculated using a spindle arm length of 5 inches. This is the distance measured from the center of the spindle king pin axis to the center of the mounting hole for the tie rod.
