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12-18-2006, 02:04 PM
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#1 |
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Registered User
 
Join Date: Nov 2005
Location: DE
Posts: 76
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factory 4speed
Does any one know if the 67-72 2wd trucks came from the factory with a 4 speed trans? If they did, what trans was it? I would like to put a 4 speed in my truck, but want to stick with parts that would have come on it. Thanks for any info.
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12-18-2006, 02:22 PM
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#2 |
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River life......
Join Date: Oct 2005
Location: Soldotna AK
Posts: 1,078
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Re: factory 4speed
420 or 465
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12-18-2006, 03:00 PM
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#3 |
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Account Suspended
Join Date: Oct 2004
Posts: 1,276
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Re: factory 4speed
Just so you know, these atre the compound low "Truck" transmissions. Not like the Vette 4-speeds.
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12-18-2006, 03:15 PM
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#4 |
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Registered User
Join Date: Nov 2005
Location: DE
Posts: 76
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Re: factory 4speed
What company makes 420 465, muncie? I looked around on the website and people here have installed saginaw and muncie(m20,21 22) four speeds without many problems.
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12-18-2006, 03:19 PM
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#5 |
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Active Member
Join Date: Oct 2006
Location: wi
Posts: 188
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Re: factory 4speed
the 465 and 420 are serious grunt runners. i have been told that gm used the 465 in trucks up to their 2.5 ton dumpers. i have two of these, both in my blazers and i like them alot.
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12-18-2006, 03:26 PM
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#6 |
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Senior Member
Join Date: May 2001
Location: West Central Minnesota
Posts: 568
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Re: factory 4speed
If you want to stick with parts that were available on these trucks, you'll want to use the SM-420 for 67s and the 465 for 68-72. These were the standard 4 speeds installed in trucks. Both were made by GM. There was also an option of a close-ratio four speed for use on 2WD trucks, it was a New Process 435.
Bob
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V-6....only GMC Trucks have it! 62 GMC W5000 NAPCO-V6 65 GMC 2500 NAPCO Panel-V6 66 GMC 1000-V6 66 GMC 1500-V6 67 GMC K1500-SBC (originally a KM-V6) 68 GMC C1500-V6 68 GMC C1500-V6 68 GMC Suburban C2500 70 Chevy K20-SBC 71 Chevy C30 Longhorn-SBC 72 GMC Suburban C1500-BBC 72 Chevy C10-SBC 72 GMC C5500-ToroFlow Diesel |
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12-18-2006, 04:21 PM
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#7 | |
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Global warming is a myth
Join Date: Apr 2003
Location: Henderson, NV
Posts: 208
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Re: factory 4speed
Quote:
Buddy
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Henderson, NV 1972 K5 - Lifelong project - Needs Time, Place, Help & Parts!! 1990 K5 with 37's 2003 Discovery SE7 - Wife's |
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12-18-2006, 04:50 PM
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#8 |
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Registered User
Join Date: Nov 2005
Location: DE
Posts: 76
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Re: factory 4speed
After some research, I dont know if I would want to use any of these trannys. 1st gear on the 420 (7.05), 465 (6.54), 435 (4.78). With a 3.73 rear i wont be going anywhere. 2nd gear is still lower than 1st on my 3spd. Maybe a muncie or saginaw would be worth the trouble of rigging stuff up to make it work.
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12-18-2006, 03:26 PM
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#9 |
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KEEP ON TRUCKIN'
Join Date: Jun 2005
Location: Sterling, Va.
Posts: 5,730
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Re: factory 4speed
I had a 465 in one of my 4X4's and it is a mule of a trans. I am putting a M21 in my two wheel drive with out any problems. My dad put a Saginaw in his '67 with no problems.
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JIM '97 GMC Sierra K1500 '95 Chevy Silverado C1500 '71 Cheyenne Z71 / LT1 & 4-Speed SWB K/10  Father/Son Projecthttp://www.youtube.com/watch?v=4l689JKXPnA http://67-72chevytrucks.com/vboard/payments.php "LIVIN' FREE FOREVER" 
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12-18-2006, 03:50 PM
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#10 |
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Registered User
Join Date: Nov 2005
Location: DE
Posts: 76
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Re: factory 4speed
So the 420, and 465 came 4wd trucks and the New Process 435 came in 2wd?
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12-18-2006, 05:01 PM
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#11 |
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Active Member
Join Date: Oct 2006
Location: wi
Posts: 188
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Re: factory 4speed
there is always the nv3500 or the nv4500, which are both nice trannys
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12-18-2006, 05:43 PM
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#12 |
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I am a Referee of life.
Join Date: Jun 2000
Location: Greensboro N.C.
Posts: 13,992
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Re: factory 4speed
If you're looking for a Hot Rod 4 speed you want to go with something besides the factory trans.You will need a floor shifter.The ones listed as original equipment are the "Farmer 4 Speed with granny gear."
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The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil" |
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12-18-2006, 05:51 PM
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#13 |
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Registered User
Join Date: Nov 2005
Location: DE
Posts: 76
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Re: factory 4speed
I want everything to work properly, I hate it when stuff is rigged up and never seems to work right. I thought that i could bolt in a 4sp that came on the pickup with out running into a bunch of issues.
I am worried about how the shift linkige will work, and how the shifter will come through the floor with the saginaw or m22. If I find a cheap one I might give it a shot. Thanks for all the help to everyone that replied. Last edited by smackmatic; 12-18-2006 at 05:53 PM. |
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12-18-2006, 11:25 PM
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#14 |
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Registered User
Join Date: Jul 2005
Location: Kernersville, NC
Posts: 599
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Re: factory 4speed
i run a 4 speed saginaw in my '69 with a mild 305. a saginaw will last as long are easy when u shift the gears, if you like to really slam gears, buy a muncie. i've blown 2 saginaws up in from slammin gears to hard. hurst makes a shifter to put the car type 4 speeds saginaws and mucie in the truck. jegs a summit sell them. assumin you have a 3 speed tranny know, the 4 speed saginaw will bold up with any modifacions to the driveshaft. if think the muncies will too but have never tried it. chris.
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12-18-2006, 11:31 PM
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#15 |
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KEEP ON TRUCKIN'
Join Date: Jun 2005
Location: Sterling, Va.
Posts: 5,730
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Re: factory 4speed
There is no rigging when putting a Muncie or Saginaw in one of these trucks. It fits in just like in a car and comes up through the floor in the correct spot. Both my truck with the Muncie and my dads truck with the Saginaw have bucket seats with consoles and have no issues what so ever. We are using the Hurst competition Plus shifters with the standard handles that come with it and it clears everything. I am sorry I can't get any pics for you because I am in Austria and both trucks are in Virginia. I came across this sight on ebay. They have everything for a Muncie Trans: riversidegear.com I am going to get the Overdrive setup for the M21. That will make my 500 + h.p. bigblock drivable on longdistance trips.
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JIM '97 GMC Sierra K1500 '95 Chevy Silverado C1500 '71 Cheyenne Z71 / LT1 & 4-Speed SWB K/10 Father/Son Projecthttp://www.youtube.com/watch?v=4l689JKXPnA http://67-72chevytrucks.com/vboard/payments.php "LIVIN' FREE FOREVER"
Last edited by Bishops Trucks; 12-19-2006 at 01:53 AM. |
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12-19-2006, 06:21 PM
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#16 | |
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Registered User
Join Date: Sep 2006
Location: Lancaster, PA
Posts: 270
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Re: factory 4speed
Quote:
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70 Custom/10, 396, Muncie 4spd, SWB SOLD 72 Cheyenne K20, 350, Granny 4spd, LWB, daily driver 72 Cheyenne Super C20, 350, Turbo 400, LWB, parts truck for 4WD Cheyenne |
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12-19-2006, 03:46 AM
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#17 |
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KEEP ON TRUCKIN'
Join Date: Jun 2005
Location: Sterling, Va.
Posts: 5,730
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Re: factory 4speed
For Muncie parts and info go to www.riversidegear.com
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JIM '97 GMC Sierra K1500 '95 Chevy Silverado C1500 '71 Cheyenne Z71 / LT1 & 4-Speed SWB K/10 Father/Son Projecthttp://www.youtube.com/watch?v=4l689JKXPnA http://67-72chevytrucks.com/vboard/payments.php "LIVIN' FREE FOREVER"
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12-19-2006, 09:47 AM
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#18 |
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Account Suspended
Join Date: Oct 2004
Posts: 1,276
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Re: factory 4speed
I have a muncie car 4 speed that I used in a Jeep for years and I was constantly adjusting the Hurst linkage and changing linkage bushings. If all you are looking for is a period correct 4 speed that is hastle free with no external linkage that would bolt right in, I would go with the SM 420 465 "Truck" 4 speeds. The key word here is Truck or Car . Never mind that 1st gear low ration. You only use it to creep when you have to. Otherwise you have a 3 speed, using 2-3 and 4.
Unless you realy want to drive like a sports car, I would just use the truck 4 speed. Your choice though. |
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12-19-2006, 10:42 AM
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#19 |
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Registered User
Join Date: May 2006
Location: Denver ,CO
Posts: 47
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Re: factory 4speed
Not that I am an expert, but I am in the process of converting to an NV3500 ... a lot more to it than I thought, but ...
Some have mentioned installing Muncies or Sagniaws ... were their "top loader" versions of these trannys? My truck had a 420/465 and it was with the shifter coming right out of the top of the unit. My '68 Firebird has an M21 and the shifting mechanism is slung to the side, and would not come through the same point in the tranny hump. It would be closer to the driver's side. My NV3500 came through about 6-8" further back on the tranny hump. Shifting was not impared by the seat. If interested, go to this link ... http://67-72chevytrucks.com/vboard/s...ghlight=nv3500 Thanks, Dave |
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12-19-2006, 02:38 PM
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#20 |
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Registered User
Join Date: Apr 2003
Location: Central PA....In the Berg of Nisbet
Posts: 790
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Re: factory 4speed
If your going to go through all the work to put a 4 in that truck, I'd just step up in the dollar department and put an NV4500 in it.
We got a acouple SM465s in trucks around here, and IMO, the ratios stink.......I love the low hole, and use it alot, but everything between 1st and 4th is wrong. NV4500 is alot better when you look at the numbers. My problem, especially when towing with our trucks............4th is too steep a gear, 3rd ain't steep enough.
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12-20-2006, 11:33 PM
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#21 |
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Registered User
Join Date: Mar 2006
Location: Pittsburgh
Posts: 1,694
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Re: factory 4speed
I have a 1967 2wd shortbed with a factory 4 speed and 283 motor. I don't know the rearend ratio but I don't even use first gear. I live in Pittsburgh that has many steep hills. I start off in 2nd gear and can go up any hill. I can only do about 55-60 mph anything faster kills my gas mileage. I don't have a tach so I don't know the rpm's at those speeds.
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