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SAE Flywheel Housing Chart

SAE flywheel housing size chart

Clutch Housing Dimensions

SAE No. A B C D (b) E
No. Size
0 25.5" 28" 26.75" 5 13/64" 16 17/32"
1/2 23" 25.5" 24.375" 6 5/16" 12 17/32"
1 (a) 20.125" 21.75" 20.875" 5 13/16" 12 15/32"
2 17.625" 19.75" 18.375" 4.75" 12 13/32"
3 16.125" 17.75" 16.875" 4.375" 12 13/32"
4 14.25" 15.875" 15" 3 57/64" 12 13/32"

(a)   Prior to 1953 the SAE No. 1 Housing specified holes for 3/8" diameter bolts
(b)   Nominal Chordal Dimension for reference only.