The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 4l80

iroc12valve · 07-27-2010, 02:58 PM

I have a 1991 gmc v3500 OBS right now its got a 4l80 up to a 205,
the 4l80 isn't right and needs a rebuild. (1300 using stock converter)
what i want to do is just put in a TH400 but i still want to have the 205, I have heard that 2wd 400 has a 32 spline output, and my 205 is 32 spline input . Is there something i'm missing (e.g. male/female shafts etc.)

Thanks

07-27-2010, 02:58 PM	#1
iroc12valve Registered User Join Date: Jun 2010 Location: niagara, ontario Posts: 109	4l80 - t400 np205 I have a 1991 gmc v3500 OBS right now its got a 4l80 up to a 205, the 4l80 isn't right and needs a rebuild. (1300 using stock converter) what i want to do is just put in a TH400 but i still want to have the 205, I have heard that 2wd 400 has a 32 spline output, and my 205 is 32 spline input . Is there something i'm missing (e.g. male/female shafts etc.) Thanks __________________ 1991 V3500 350TBI/4l80/205 D60/14bff - Crew long 1987 IrocZ-28 525 horse/567 Lb Tq 383 1976 K30 on 39.5s One wheel drive thanks to a np203 and some K5's lol