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#1 |
Registered User
Join Date: Apr 2006
Location: Hockinson, Washington
Posts: 115
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SM 465 Questions and Application info
Hey guys,
Looking for some input here. I have an original 1968 SM 465 that was put in my truck by my uncle when he owned it 15 years ago. This tranny replaced the stock three on the tree setup from the factory. My uncle dropped the SM 465 out of a 1968 junkyard C-10, grabbed all of the parts he needed to make it work from that truck, installed it in his and drove away. He also told me he never changed the fluid, just topped it off and never looked back. I think the last time I changed the fluid in it was about 1997. She is making a little noise to say the least, but still shifts fine and gets me around when I need her. Here are my questions: -How much torque can one of these handle? Would going with a larger diameter clutch help? -In the interim, what do you recommend I do to prolong it's life before I rebuild her? -When I start looking to get her rebuilt, how much is too much? -Is there any modifications you would make to this tranny to make it function better? (Currently the truck is a 250 L6 with 4:10 gears, going with a brand new Eaton Posi, and 3.08's, possibly a 450HP-550TQ Chevy 406 in her future)
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1968 Chevrolet C-10, 2WD, Longbox, Vortec 350, 700R4, 3.73 gears Good judgment comes from experience, and experience, well......that comes from bad judgment. 1968 Chevy C-10 "Longshot": Bought used from my Uncle George in 1994 and proceeding to beat the hell out of it for 4 years. Sold it. Bought it back, dumped an ungodly amount of money into it since then. |
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#2 |
Registered User
Join Date: Apr 2007
Location: Kalamazoo, Michigan, USA
Posts: 538
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Re: SM 465 Questions and Application info
here's a great article on the 465 - http://www.4wheeloffroad.com/brandpa...ild/index.html
and another- http://www.novak-adapt.com/knowledge/sm465.htm
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1970 K20, 350--- SOLD 05 silverado extended cab short box- duramax Jeep wrangler unlimited Last edited by Ace in the hole; 03-04-2008 at 07:21 AM. |
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#3 |
Registered User
Join Date: Jan 2007
Location: South Florida
Posts: 158
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Re: SM 465 Questions and Application info
The SM465 will handle a bunch of torque.
I would just drive it until you are ready to rebuild it, maybe change the fluid until then. I replaced all the bearings and bushings in mine because the rubber dampner wore out and it began to make "clicking" noises. You can do it yourself, they're simple. Rob |
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#4 |
Registered User
Join Date: Mar 2007
Location: Grundy Virginia
Posts: 385
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Re: SM 465 Questions and Application info
I have one in my truck, the i changed the fluid in it, when i put my crate motor in, they are less fun then a reg 4 speed (or 5 speed which im installing soon) but they're as tough as a 3 dollar steak....
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"OLE BLUE" Goodwrench 350, 5speed, Tilt, PS, PB, "some guys got into cars for money or girls but i got into cars because of the cars" -Jay Leno |
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#5 |
Addicted to Chevy
Join Date: Dec 2004
Location: Tyler, Tx
Posts: 857
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Re: SM 465 Questions and Application info
yeah man, you pretty much CANT break it. i have a 1/2 ton stepside that i pulled an 8500lb trailer load with and it was a dream. that low gear can "pull the world" as my grandpa would say.
i have heard any regular joe can buy the $250 rebuild kit and do it in a weekend. I hope its true cuz i need it soon. |
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#6 |
Registered User
Join Date: Feb 2008
Location: oxnard, ca
Posts: 189
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Re: SM 465 Questions and Application info
__________________
-A DAM WILD MAN- 59 apache pannel truck 38 I-6/sm420 79 malibu wagon 305/t56 02 2500hd duramax/allision 1/4 13.82 @100 mph efi live and built tranny 500hp 383 on the engine stand ![]() U.S. Navy 2000-Current Peace through Superior Firepower Horsepower = Condom.....I would rather have it and not need it than to need it and not have it |
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