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Power steering in a CR Cobra. Have almost 13,000 miles and two years on P.S. equipped CR Cobra. Motor is tweaked 351W, so you'll have to do some pulley and bracket work for a 428FE.
But I love it! Good road feel, great parking manners, no problems, and no leaks.
Power rack. The MII cast iron rack weighs as much as a BB head, but the '79 and up rack is cast aluminum. Weight about the same as aluminum intake. Why late instead of MII rack? It fits, and it works. CR rack mount on pass side is slotted to accept either rack. AGR (Andy Granitelli Racing) is a steering rebuild shop in Ft. Worth TX. They make, and Summit sells, a standard ratio - high effort rebuilt late rack that fits a CR Cobra. They also make a fast ratio rack for you slalom guys, but the standard ratio is plenty quick enough for a street Cobra.
Since the center to center distance between the MII rack mount to rack centerline is shorter on the late Mustang, installed late M with offset bushings that lowered the late M rack.
Pump. Per AGR, either Ford (Mustang) or Saginaw pump will work, they preferred the Saginaw (aka GM/Chevy). Summit carries the AGR rebuilt low drag PS pump.
Street Rod shop called RB's Antique Automotive (Ads in every Street Rodder Mag) offers a pressure relief valve for the Saginaw pump that drops the line pressure from 1200 - 1300 psi to 800 - 900 psi. Perfect for light weight front ends on Street Rods, and Cobras. $39.95
Since the rest of the pulleys were March, the March PS pulley for Saginaw pump worked and fit just fine.
Lines. From Ford, got the low side return fitting for the rack which I cut and shortened. It's 3/8", and I plumbed it to pump return with 3/8" FI hose. Local atuo supply store furnished GM pump side line, and Ford rack side line. Cut off the fittings, and trash the rest of the perfectly good lines. Hydraulics shop (read fork lift and snow plow repair) mated 3/8" GM hi to 5/16" Ford hi. Everything bolted in.
Brackets. Some Ford pickups and vans use recirculating ball steering (like GM cars), and Saginaw pumps. The pump cradle bracket has a Ford part number. Visit your wrecking yard for this bracket. You have to fabricate or modify a block or head to pump cradle bracket to mount the pump.
Trial assembly is critical as the steering column must go over the header, and under the PS pump. It's a tight fit.
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