IMHO ...
The DSE, Art Morrison, Roadster Shop & Speedtech front clips are all well built & include quality components.
After measuring & running calcs on all of them, I'm clear they each have good bump steer & camber gain.
The notable differences (advantages) of the Speedtech eXtreme clips & frames are:
* 100% Ackerman for increased grip on inside front tire.
* A spindle custom designed for this suspension ... not the other way around.
* Roll Center above ground in dynamic conditions ... and in exact optimum location ... for increased front end grip ... and corner entry stability.
* Fits 315 front tires with clearance for 30° of steering.
* Increased caster capacity for optimum tire contact patches on both front tires. (Slugged for 7° to 9° static caster ... plus 0.6°-2.0° caster gain in dive).
* A real racing power steering rack from Sweet ($900) ... with dual power to live forever & excel at turning sticky 315's ... instead of reproduction/remanufactured production car rack from Mavel ($300).
* 3-piece race style front sway bar with Speedway Engineering chromoly bars offering a range of rates from 400# to 1300#.
* Lastly is the option to come with Ridetech or JRI shocks with digressive pistons & my modern secret sauce, high grip valving.
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