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64swb · 08-03-2010, 01:38 AM

to bolt up to a th400 with your transfer case/adapter you would need a 4x4 th400 that had either a np208 or later model 205 (like yours) behind it. the 2wd th400 will only bolt up to a 205 with the older figure 8 short style adapter. yours should be the later model long round pattern adapter. the output shaft on the later th400s for 4x4 are longer than the old style. iirc it was somewhere around the early 80s when they changed the styles of the adapters.

08-03-2010, 01:38 AM	#5
64swb Registered User Join Date: Mar 2007 Location: Camino, CA Posts: 182	Re: 4l80 - t400 np205 to bolt up to a th400 with your transfer case/adapter you would need a 4x4 th400 that had either a np208 or later model 205 (like yours) behind it. the 2wd th400 will only bolt up to a 205 with the older figure 8 short style adapter. yours should be the later model long round pattern adapter. the output shaft on the later th400s for 4x4 are longer than the old style. iirc it was somewhere around the early 80s when they changed the styles of the adapters. __________________ 1978 Chevy C10, 1986 Chevy K20 'Burb, 1970 Chevelle, 1996 K2500 'Burb, 1977 Chevy K10, 1970 Ford F-250, 72 Ford F100 4x4, 1979 Chevy C30, 1982 Chevy C30, 1996 Chevy Dually 4x4 SAS, 1997 Chevy Tahoe, 1991 Ford F-350 cclb dually 4x4 Last edited by 64swb; 08-03-2010 at 01:40 AM.