No help here:
Parts and Accessories Catalog P&A 30 March 1957
gp. 0.728 GEAR---SPROCKET, Crankshaft Timing (Steel)
40-57 ALL 6 cyl (27 teeth----3 1/8 OD) pn. 3835371
53-55 CORV. 6 cyl. (stamped 73) 3836073.
Parts Catalogue No. 651 December 1964
1958-65 / ALL WITH 230 and 235 ENGINE
Parts History Catalog P&A 30H January 1973
USE 03846967 07-65
Parts and Accessories Catalog P&A 31 May 1966
55-66 ALL (6 cyl.) (exc. 292) GEAR, (27 teeth–3 1/8 O.D.–stamped “71”) 3836605
63-65 ALL (292) GEAR, crankshaft (stamped “71”) 3835371
66 ALL (292) GEAR, 37 teeth 3882892
Parts Catalogue No. 691A November 1968
3835371 1967–69/6 CYL
Parts and Accessories Catalog 31 January 1964
63-64 ALL (292) GEAR, crankshaft (stamped “71”) 3835371
Parts and Illustration Catalog 30 March 1958
3835371 Mix w 3836605 3-1-58
Master Parts Catalog April 1950
839259 Use 3835371 4-1-49
Truck Parts Catalog 31S June 1971
40-66 All (6cyl.) (exc. 292) 3836605
Part Number Replacements and Supersessions 80TS-RP September 1979
3835371 replaced w 3836605
Last edited by Denny Graham; 12/01/2015 12:57 PM.