1968 AMA Specifications – Steering
AMA Specifications-Passenger Car
— Steering —
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MODEL |
Firebird |
Firebird Sprint |
Firebird 350 |
Firebird H.O. |
Firebird 400 |
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Steering |
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Manual (std., opt., N.A.) |
Standard |
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Power (std., opt., N.A.) |
Optional |
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Adjustable steering wheel (tilt, swing, other) |
Type anddescription |
Tilting Wheel – Adjusts Vertically – Seven Positions |
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(std., opt., N.A.) |
Optional |
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Wheel Diameter |
Manual |
15.25 x 16.0 |
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Power |
15.25 x 16.0 |
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Turning diameter (feet) |
Outside front |
Wall to wall (l. & r.) |
40.8 |
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Curb to curb (l. & r.) |
38.5 |
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Inside rear |
Wall to wall (l. & r.) |
22.5 |
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Curb to curb (l. & r.) |
23.0 |
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Outside whl. angle with inside whl. at 20° |
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Manual |
Gear |
Type |
Recirculating Ball Bearing |
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Make |
Saginaw |
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Ratios |
Gear |
24:1 (a) |
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Overall |
26.2:1 (a) |
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No. wheel turns |
4.7 – Lock to Lock |
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Power |
Type (coaxial, linkage, etc.) |
Coaxial |
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Make |
Saginaw |
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Gear |
Type |
Recirculating Ball Bearing |
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Ratios |
Gear |
17.5:1 (c) |
16.0-12.2:1 |
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Overall |
19.2:1 (c) |
16.0-12.2:1 |
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Pump driven by |
Belt from Crankshaft |
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No. wheel turns |
4.7 – Lock to Lock |
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Linkage |
Type |
Link Parallelogram |
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Location (front or rear of wheels, other) |
Rear of Wheels |
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Drag link (trans. or longit.) |
Transverse Strg. Rod Connects Tie Rods, Pitman & Idler Arms |
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Tie rods (one or two) |
Two |
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Steering Axis |
Inclination at camber (deg.) |
8 ¼ to 9 ¼ |
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Bearings (type) |
Upper |
Ball Joint |
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Lower |
Ball Joint |
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Thrust |
Spring Load Taken By Lower Ball Joint |
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Whl. Align.(range atcurb wt. &preferred) |
Caster (deg.) |
0 to 1° Pos. |
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Camber (deg.) |
1/4° Neg. to 3/4° Pos. |
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Toe-in (outside track inches) |
1/8 to 1/4 |
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Steering spindle & joint type |
Reverse Elliott – Ball Joint |
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Wheel Spindle |
Diameter |
Inner bearing |
1.249 |
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Outer bearing |
0.749 |
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Thread size |
3/4 – 20 |
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Bearing type |
Taper Roller |
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NOTES |
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(a) 28:1 with combined V-8 engine and air conditioning (5.4 turns lock to lock) (b) 30.9:1 with combined V-8 engine and air conditioning (c) Variable ratio power gear (as shown for Firebird 400) available as second option after March 1. 1968. |
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