The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - SM465 10 spline output shaft wear and driveshaft slip yoke wear

Lemield · 11-20-2013, 01:33 PM

What a coincidence! I had a vibration noise in my drivetrain of my K20. I thought it was my NP205 transfer case. Pulled the case and saw the actual problem....the output shaft of the SM465 and the coupler are trashed. There is even some nasty wear on the input shaft of the NP205. Both the transmission and the transfer case are at a local transmission shop right now being gone through.

According to the trans shop, this is pretty common for these old SM465/NP205 combinations.

11-20-2013, 01:33 PM	#4
Lemield Registered User Join Date: Dec 2004 Location: Arvada Colorado Posts: 1,321	Re: SM465 10 spline output shaft wear and driveshaft slip yoke wear What a coincidence! I had a vibration noise in my drivetrain of my K20. I thought it was my NP205 transfer case. Pulled the case and saw the actual problem....the output shaft of the SM465 and the coupler are trashed. There is even some nasty wear on the input shaft of the NP205. Both the transmission and the transfer case are at a local transmission shop right now being gone through. According to the trans shop, this is pretty common for these old SM465/NP205 combinations. Attached Images __________________ Larry 1949 Willys CJ2A, Kubota Turbo Diesel engine, Warn Overdrive, 11 inch brakes, 12volt, Warn M8000 Winch "Little Green" 1970 Rustoleum Roller Red C20 Custom Camper 454 TH400 "Big Red" 1971 K20 6.2 Turbo Diesel 4x4 4spd Ranger Overdrive "Pumpkin Wagon" 2005 VW Beetle Diesel 44+ MPG "Silver Bullet"