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    TR2/3/3A Type A Overdrive, Physical Differences between Roadster Brands?

    Excepting the ratio difference for some applications (28% for Jags vs. 22% for others?), was there any physical difference in the Type A sports overdrives between those used in TRs, Austin-Healey, MG, etc.? Or are the differences only in the rear casing dimensions? I know the sedans are a...
    • Tropical TR
    • Thread
    • austin healey mgs tr3 type a overdrive
    • Replies: 2
    • Forum: Triumph
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