sm 465 tranny - The 1947 - Present Chevrolet & GMC Truck Message Board Network

truckn' · 03-06-2008, 02:30 AM

hey guys, probably gonna buy this 4 speed tranny off a local guy. what does it mean to have pto (rear output) don't mean to sound stupid but only dumb question is one not asked. thx

slug · 03-06-2008, 03:30 AM

Pto (power Take Off) It Is Used In Trucks To Drive Ceartain Accesories. (hydraulic Pump, Winch, Dump Bed)

greg64 · 03-06-2008, 06:48 AM

....And the SM465 has two PTOs (both sides of the case). I have a 465 in my 77. Great transmission, although the granny low is only rarely useful (*). I usually start in 2nd.

Have a look at this link: http://www.novak-adapt.com/knowledge/sm465.htm for lots of info.

Watch the bellhousing... it's different from the standard GM one in that the indexing ring is larger on the tranny than the standard bell hole. Need a cast iron bellhousing to match.

* When I'm pulling a heavy load, having the granny low is great to get things moving without leaving my clutch as dust on the road.

truckn' · 03-06-2008, 08:54 AM

thx guys $100 bones is probably a pretty good score then would you say?

greg64 · 03-06-2008, 10:29 AM

Ya, $100 bucks would be a good deal for a usable unit. I guess because they're heavy (180 lbs) and aren't useful to the pony car crowd, they don't seem to ever command a high price. Novak offers fully rebuilt ones for $1000, which would be a steal for a 5 speed with O/D. Heck a Muncie 4 speed (M20/21/22) would be worth many times more than a 465, but they aren't half as tough.

What rear gears do you have, truckin?

truckn' · 03-06-2008, 03:43 PM

I'm not sure greg it's a stock rear end, the one thing I need is the low granny gear because I pull my pontoon boat up my very steep and long drive way.

greg64 · 03-06-2008, 07:52 PM

Oh, well you'll like the 465 then. About the only thing in this class that can beat it for low end is the SM420. Everything more modern for the <1T trucks doesn't have as good a crawl ratio.

Fred T · 03-07-2008, 06:13 AM

I prefer the SM420 over the 465. It's smaller, lighter and shifts faster and easier. But use what you can get, they're both next to indestructable.

I'm also not an expert on the rear pto. If not needed, I would remove it if possible, and sell it. Seems to be a good market for pto's. And you will have one less place for drips.

03-06-2008, 02:30 AM	#1
truckn' Registered User Join Date: Aug 2006 Location: rogersville tennessee Posts: 276	sm 465 tranny hey guys, probably gonna buy this 4 speed tranny off a local guy. what does it mean to have pto (rear output) don't mean to sound stupid but only dumb question is one not asked. thx

03-06-2008, 03:30 AM	#2
slug Registered User Join Date: Jan 2008 Location: Groves,TX Posts: 483	Re: sm 465 tranny Pto (power Take Off) It Is Used In Trucks To Drive Ceartain Accesories. (hydraulic Pump, Winch, Dump Bed)

03-06-2008, 06:48 AM	#3
greg64 Registered User Join Date: Dec 2007 Location: Kimberley, BC, Canada Posts: 799	Re: sm 465 tranny ....And the SM465 has two PTOs (both sides of the case). I have a 465 in my 77. Great transmission, although the granny low is only rarely useful (). I usually start in 2nd. Have a look at this link: http://www.novak-adapt.com/knowledge/sm465.htm for lots of info. Watch the bellhousing... it's different from the standard GM one in that the indexing ring is larger on the tranny than the standard bell hole. Need a cast iron bellhousing to match. When I'm pulling a heavy load, having the granny low is great to get things moving without leaving my clutch as dust on the road. __________________ Greg 64 GMC Suburban - 283, NV3500, 14 bolt 77 C10 swb - 292, SM465, 12 bolt

03-06-2008, 08:54 AM	#4
truckn' Registered User Join Date: Aug 2006 Location: rogersville tennessee Posts: 276	Re: sm 465 tranny thx guys $100 bones is probably a pretty good score then would you say?

03-06-2008, 10:29 AM	#5
greg64 Registered User Join Date: Dec 2007 Location: Kimberley, BC, Canada Posts: 799	Re: sm 465 tranny Ya, $100 bucks would be a good deal for a usable unit. I guess because they're heavy (180 lbs) and aren't useful to the pony car crowd, they don't seem to ever command a high price. Novak offers fully rebuilt ones for $1000, which would be a steal for a 5 speed with O/D. Heck a Muncie 4 speed (M20/21/22) would be worth many times more than a 465, but they aren't half as tough. What rear gears do you have, truckin? __________________ Greg 64 GMC Suburban - 283, NV3500, 14 bolt 77 C10 swb - 292, SM465, 12 bolt

03-06-2008, 03:43 PM	#6
truckn' Registered User Join Date: Aug 2006 Location: rogersville tennessee Posts: 276	Re: sm 465 tranny I'm not sure greg it's a stock rear end, the one thing I need is the low granny gear because I pull my pontoon boat up my very steep and long drive way.

03-06-2008, 07:52 PM	#7
greg64 Registered User Join Date: Dec 2007 Location: Kimberley, BC, Canada Posts: 799	Re: sm 465 tranny Oh, well you'll like the 465 then. About the only thing in this class that can beat it for low end is the SM420. Everything more modern for the <1T trucks doesn't have as good a crawl ratio. __________________ Greg 64 GMC Suburban - 283, NV3500, 14 bolt 77 C10 swb - 292, SM465, 12 bolt

03-07-2008, 06:13 AM	#8
Fred T Cantankerous Geezer Join Date: Aug 2002 Location: Bel Aire, KS Posts: 6,264	Re: sm 465 tranny I prefer the SM420 over the 465. It's smaller, lighter and shifts faster and easier. But use what you can get, they're both next to indestructable. I'm also not an expert on the rear pto. If not needed, I would remove it if possible, and sell it. Seems to be a good market for pto's. And you will have one less place for drips. __________________ Fred There is no such thing as too much cam...just not enough engine.

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