Peter Truman Posted March 31, 2021 Report Share Posted March 31, 2021 I have a spare 305137 D type adapter it is 1.595in wide vs the original 313085 Mk4 J type fitted to my modified single rail/3 rail box at 1.673in. Haven’t measured the OD PCD flange can do that tomorrow. 1 Link to comment Share on other sites More sharing options...
johny Posted March 31, 2021 Report Share Posted March 31, 2021 1 hour ago, Colin Lindsay said: Just to confirm - are they unique to Triumph overdrives (as in: is the Triumph version made specially for Triumphs only?) or do they differ between marques? I've found various other brands online, second-hand -Jaguar for one - so am wondering if one will fit any J-type or does the type of car matter? for the adaptor the end that fits on the OD should be good for a J type from any marque but the end that bolts to the main case is specific for Triumph small chassis gearboxes... Link to comment Share on other sites More sharing options...
johny Posted March 31, 2021 Report Share Posted March 31, 2021 6 minutes ago, Peter Truman said: I have a spare 305137 D type adapter it is 1.595in wide vs the original 313085 Mk4 J type fitted to my modified single rail/3 rail box at 1.673in. Haven’t measured the OD PCD flange can do that tomorrow. Looks like then the J type OD is slightly shorter in length than the D and might explain why only the 313085 can be used... Link to comment Share on other sites More sharing options...
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