sm465 to np205 coupler - The 1947 - Present Chevrolet & GMC Truck Message Board Network

403oldsman · 11-15-2006, 11:34 AM

I'm in the middle of an over haul of a sm465 in I need a new mainshaft and a coupler to my transfer case. The splines on the transfer case look fine but the mainshaft is about half there and the coupler is about a 1/16 there so i need a new one. My problem is finding a coupler that is 10 splined and 4.75" long. I found a mainshaft for about $75,and an overhaul kit for $150, but haven't found a couple for less than $90. If anyone knows where I can get these parts cheaper or a good quality ( if its good quality i dont have a problem with how much it costs like made in USA).

I problem that happened with the trans mission was the roller bearings between the input shaft and the mainshaft stopped rolling and when i would let the clutch out when it was in neutral it would kill the engine.

Does anyone know of anything else i should check while i have the tranny apart.

Thanks,
Mark

**Yukon Jack** · 11-15-2006, 02:49 PM

A guy over on ck5.com has some sleeves for sale in the tranny classified section for I believe $50.00 His username is thatk30guy.

Blazer1970 · 11-15-2006, 06:03 PM

Quote:

Originally Posted by Yukon Jack

A guy over on ck5.com has some sleeves for sale in the tranny classified section for I believe $50.00 His username is thatk30guy.

I can vouch for thatk30guy, he is a long time member at ck5, and I have purchased stuff from him before.

403oldsman · 11-15-2006, 10:13 PM

thanks for the help guys. I'll try to get in touch with him.

Mark

**kwmech** · 11-15-2006, 11:16 PM

You can get the couplers at the chevy dealer for about 40.

403oldsman · 11-16-2006, 10:08 AM

Do you know what the gm part number is?

Thanks
Mark

**kwmech** · 11-16-2006, 04:40 PM

GM part number is 6259656. My cost is 34.50 retails for 45.42

Dean · 11-16-2006, 07:05 PM

I got mine from GM also.

403oldsman · 11-17-2006, 12:02 PM

Thanks for the help. I have a buddy who can get parts at cost through gm so I'll see what i can do.

Thanks
Mark

**Yukon Jack** · 11-17-2006, 10:24 PM

I'm amazed at those prices, I could swear I saw them listed somewhere for like $90 or so - guess that just shows, always need to check out the GM parts department.

11-15-2006, 11:34 AM	#1
403oldsman Registered User Join Date: Mar 2005 Location: Van Horne, Iowa Posts: 46	sm465 to np205 coupler I'm in the middle of an over haul of a sm465 in I need a new mainshaft and a coupler to my transfer case. The splines on the transfer case look fine but the mainshaft is about half there and the coupler is about a 1/16 there so i need a new one. My problem is finding a coupler that is 10 splined and 4.75" long. I found a mainshaft for about $75,and an overhaul kit for $150, but haven't found a couple for less than $90. If anyone knows where I can get these parts cheaper or a good quality ( if its good quality i dont have a problem with how much it costs like made in USA). I problem that happened with the trans mission was the roller bearings between the input shaft and the mainshaft stopped rolling and when i would let the clutch out when it was in neutral it would kill the engine. Does anyone know of anything else i should check while i have the tranny apart. Thanks, Mark __________________ THERE is NO REPLACEMENT FOR DISPLACEMENT 1971 CHEVY 4X4 4SPD 406 CHEVY Lockers front and back 1978 BONNEVILLE 403 OLDS 1985 K1500 F5L912 Deutz Power (work in progress) http://67-72chevytrucks.com/vboard/s...d.php?t=389561 1963 Oliver 1600 diesel 1956 Oliver Super 88

11-15-2006, 02:49 PM	#2
Yukon Jack Post Whore Join Date: Feb 2000 Location: Rose Hill, KS, USA Posts: 12,689	Re: sm465 to np205 coupler A guy over on ck5.com has some sleeves for sale in the tranny classified section for I believe $50.00 His username is thatk30guy. __________________ 1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14

11-15-2006, 10:13 PM	#4
403oldsman Registered User Join Date: Mar 2005 Location: Van Horne, Iowa Posts: 46	Re: sm465 to np205 coupler thanks for the help guys. I'll try to get in touch with him. Mark __________________ THERE is NO REPLACEMENT FOR DISPLACEMENT 1971 CHEVY 4X4 4SPD 406 CHEVY Lockers front and back 1978 BONNEVILLE 403 OLDS 1985 K1500 F5L912 Deutz Power (work in progress) http://67-72chevytrucks.com/vboard/s...d.php?t=389561 1963 Oliver 1600 diesel 1956 Oliver Super 88

11-15-2006, 11:16 PM	#5
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,713	Re: sm465 to np205 coupler You can get the couplers at the chevy dealer for about 40.

11-16-2006, 10:08 AM	#6
403oldsman Registered User Join Date: Mar 2005 Location: Van Horne, Iowa Posts: 46	Re: sm465 to np205 coupler Do you know what the gm part number is? Thanks Mark __________________ THERE is NO REPLACEMENT FOR DISPLACEMENT 1971 CHEVY 4X4 4SPD 406 CHEVY Lockers front and back 1978 BONNEVILLE 403 OLDS 1985 K1500 F5L912 Deutz Power (work in progress) http://67-72chevytrucks.com/vboard/s...d.php?t=389561 1963 Oliver 1600 diesel 1956 Oliver Super 88

11-16-2006, 04:40 PM	#7
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,713	Re: sm465 to np205 coupler GM part number is 6259656. My cost is 34.50 retails for 45.42

11-16-2006, 07:05 PM	#8
Dean Senior Member Join Date: Jan 2000 Location: Cincinnati, Ohio Posts: 1,492	Re: sm465 to np205 coupler I got mine from GM also.

11-17-2006, 12:02 PM	#9
403oldsman Registered User Join Date: Mar 2005 Location: Van Horne, Iowa Posts: 46	Re: sm465 to np205 coupler Thanks for the help. I have a buddy who can get parts at cost through gm so I'll see what i can do. Thanks Mark __________________ THERE is NO REPLACEMENT FOR DISPLACEMENT 1971 CHEVY 4X4 4SPD 406 CHEVY Lockers front and back 1978 BONNEVILLE 403 OLDS 1985 K1500 F5L912 Deutz Power (work in progress) http://67-72chevytrucks.com/vboard/s...d.php?t=389561 1963 Oliver 1600 diesel 1956 Oliver Super 88

11-17-2006, 10:24 PM	#10
Yukon Jack Post Whore Join Date: Feb 2000 Location: Rose Hill, KS, USA Posts: 12,689	Re: sm465 to np205 coupler I'm amazed at those prices, I could swear I saw them listed somewhere for like $90 or so - guess that just shows, always need to check out the GM parts department. __________________ 1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14



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