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Transmission & Final Drive · Gearbox shimming — the heart of a rebuild

Shim plate diameters

Value
52 mm — all 5-speed shafts
Applies · shim sourcing
Many 4-speed sizes NLA from BMW; Oilhead 47/52 mm shims (0.30–0.55, 0.05 steps) substitute. Cycle Works sells kits + measuring plates.

This is the book's general row. In the book, pick your model and year and this figure resolves to your machine, with the one-page torque sheet, the job pages and the printable booklet.

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If this figure disagrees with your manual, say which manual and which page. Every report is checked against the source before anything in the book changes.

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