Hi Mark,Al, Would either of these be what you are looking for? Neither description specifically mentions the Montreal. It might be worth sending them an email asking for what you need.
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GB053 DIFFERENTIAL PINION NUT 101 & 105 SERIES 1300-1750
Buy any part for your Alfa Romeo classic car online. We are the largest supplier for classic Alfa Romeo car parts in the UK. We ship worldwide every day.classicalfa.com
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GB053/1 DIFFERENTIAL PINION NUT - 2000/MONTREAL
Buy any part for your Alfa Romeo classic car online. We are the largest supplier for classic Alfa Romeo car parts in the UK. We ship worldwide every day.classicalfa.com
Mark
Spoken like a machine shop owner...Pete, what is meant by "single pointed"? Does that refer to the thread having a single point?35x1 is kind of a bastard size, I have 35x1,5 tap that I use to make the Montreal crank shaft nut. These will not be cheap, they’ll need to be single pointed, but a single pointed plug will need to be machined first to ensure a proper fit.
Häckner shop Germany does have this nut in his online shop „by request“.
Way of searching : -> Stichwortverzeichnis -> R -> Radlager Hinterachse -> Nutmutter Montreal.G. Häckner GmbH - Ersatzteile für Alfa Romeo
Alfa Romeo Klassiker - Spider, Bertone, Giulia, Monteal, Zagato, Sprint, 2600, Berlina, Ersatzteile, Zubehör, Shop, Katalog, Häcknerwww.haeckner-shop.com
For 1300-1750 S105 nuts would be available