Posted on: April 2, 2009

Propeller Shaft

(for torque loading figures see table at end of section)

Type Open shaft (reverse spline)
Outside diameter Alpine 2.0 in. (5.1 cm.)
Rapier 2.75 in. (6.9 cm.)
Overall length Alpine (Std.) 39.34 in. (99.9 cm.)
Rapier (Std.) 51.84 in. (131.6 cm.)
Alpine (0/d.) 36.59 in. (95.0 cm.)
Rapier (0/d.) 48.72 in. (123.7 cm.)
Length between centres Alpine (Std.) 32.25 in (81.9 cm.)
Rapier (Std.) 46 in. (116. 8 cm.)
Alpine (0/d.) 29.5 in. (74.9 cm.)(108.9 cm.)
Rapier (0/d.) 42.88 in.
Universal joint Needle roller

Rear Axle

(for torque loading figures see table at end of section)

Type Semi-floating
Final drive ratio Alpine (Series I, II) 3.89:1 (4.22: 1 with Overdrive)
Rapier (Spiral bevel axles) 4.55:1 (4.78: 1 with Overdrive)
Rapier (Hypoid bevel axles) 4.22:1 (4.86: I or from chassis No.B3062492)
4.44: 1 with Overdrive)
Alpine (all Series III) 3.89:1
Rapier (Series IV) 3.89:1 (4.22:1 with Overdrive)
Bearings Bevel pinion Taper roller
Differential and crown wheelassembly Taper roller
Hub Ball
Crown wheel to pinion backlash .005in./.009in. (0.127/0.229 mm.)

Number of teeth

Crown wheel (Alpine) 35 3.89 38 4.22
Bevel pinion (Alpine) 9 9
Crown wheel (Rapier) 41 4.55 43 4.78
Bevel pinion (Rapier) 9 9
Crown wheel (Rapier) 38 4.22 34 4.86 40 4.44
Bevel pinion (Rapier) 9 7 9
Crown wheel (Rapier) 35 4.89 38 4.22
Bevel pinion (Rapier) 9

Adjustment

Bevel pinion Shims
Differential assembly Shims

Overall Ratios

O/dTop Top O/d3rd Third Second First Reverse
Alpine I, II (std) 3.89:1 5.41:1 8.33:1 13.01:1 16.48:1
Alpine I, II (0/d) 3.39:1 4.22:1 4.72:1 5.88:1 9.04:1 14.13:1 17.90:1
Alpine III (all models) 3.12:1 3.89:1 3.85:1 4.80:1 7.38:1 11.53:1 14.61:1
Rapier III (std) (spiral bevel) 4.55:1 6.34:1 9.75:1 15.24:1 19.31:1
Rapier III (O/dl) (spiral bevel) 3.83:1 4.78:1 5.34:1 6.65:1 10.23:1 15.99:1 20.25:1
Rapier III, IIIA (std) 4.22:1 5.88:1 9.04:1 14.13:1 17.90:1
Rapier III, IIIA (0/d) 3.90:1 4.86:1 5.43:1 6.76:1 10.40:1 16.25:1 20.59:1
Rapier IIIA (0/d) 3.56:1 4.44:1 4.96:1 6.18:1 9.51:1 14.87:1 18.83:1
Rapier, Alpine IV (std) 3.89:1 5.41:1 8.32:1 13.01:1 16.48:1
Rapier, Alpine IV (0/d) 3.39:1 4.22:1 4.72:1 5.88:1 9.04:1 14.13:1 17.90:1

Leave a Reply

Your email address will not be published. Required fields are marked *