mikewest Posted May 11, 2022 Share Posted May 11, 2022 Ive had 2 twenties DB touring cars and never thought they were a dog on the road. In fact I bragged a DB would run the ass off a T model the same vintage. So Last fall I bought a 24 roadster, very nice condition original. It starts , shifts ect perfect. Im disappointed that it likes 35 MPH and anything over that it acts like Im ringing its neck. Did they have different gear sets in the 20s?? Where is it marked on the diff?? Mike Link to comment Share on other sites More sharing options...
gossp Posted May 11, 2022 Share Posted May 11, 2022 If I am reading the master parts book correctly it does seem like a change for the slower occurred in the 24 production. An earlier ring and pinion would fit and high speed ones have been made. Link to comment Share on other sites More sharing options...
TonyAus Posted May 11, 2022 Share Posted May 11, 2022 The ratio should be marked on the top of the final drive housing. Mine, a 1925 roadster, is marked 4.1:1. Link to comment Share on other sites More sharing options...
MikeC5 Posted May 12, 2022 Share Posted May 12, 2022 I'm not sure what my '25 has in it but it cruises pretty comfortably at 40 - 45 (actual speed). Link to comment Share on other sites More sharing options...
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