The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 07-18-2006, 01:27 AM   #1
epthree04
Registered User
 
epthree04's Avatar
 
Join Date: Apr 2006
Location: Tucson
Posts: 86
Manual 4spd Tranny Options

I have a 4spd with a granny gear on my 70 chevy with a 350 and 4barrel carb. the tranny right now is kinda lame for everyday driving and i want a different option without having to get a new driveshaft. i was thinking of getting a saginaw 4spd but i heard that i will need a shorter driveshaft. also i dont care about the location of the shifter really but i dont want it so far back to hit my bench seat. i am totally new to the older trucks. i was into sport compacts since i was 13. so thanks for the help!
epthree04 is offline   Reply With Quote
Old 07-18-2006, 05:31 AM   #2
JimKshortstep4x4
Senior Member
 
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
Talking Re: Manual 4spd Tranny Options

I would look at a Muncie M-20 as a possible transmission for your truck. It would fit nicely and it is a strong transmission with a slightly lower first gear than the M-21, M-22.

Jim
JimKshortstep4x4 is offline   Reply With Quote
Old 07-18-2006, 06:03 AM   #3
special-K
Special Order

 
special-K's Avatar
 
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,861
Re: Manual 4spd Tranny Options

What do you mean about your present trans shifting lame?Are you refering to it not being good for speed-shifting or is there another problem?These truck 4spds have a tendencey of lasting forever,but they`re not good for racing.They`re more like a 3spd w/an underdrive.
The car-type performance 4spds are great in trucks that mainly cruise and not hauler too often.They are a direct bolt-in when replacing a 3spd/column shift.The M22 has a different spline-count and will require a matching yoke and clutch assembly.The Saginaw Super T10 is also a great choice.These transmissions don`t just swap-in when replacing a truck 4spd.
__________________
"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed"

GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project)
GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling)
Tim

"Don't call me a redneck. I'm a rough cut country gentleman"

R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~
special-K is offline   Reply With Quote
Old 07-19-2006, 01:49 AM   #4
epthree04
Registered User
 
epthree04's Avatar
 
Join Date: Apr 2006
Location: Tucson
Posts: 86
Re: Manual 4spd Tranny Options

well i shouldnt have said it is lame but lame for me. i dont do any hauling whatsoever so i want something that is more for everday driving. also something that would be fun to bang through the gears every once in a while!
epthree04 is offline   Reply With Quote
Old 07-19-2006, 08:14 AM   #5
Jim_PA
Registered User
 
Join Date: May 2005
Location: PA
Posts: 2,696
Re: Manual 4spd Tranny Options

Quote:
Originally Posted by epthree04
well i shouldnt have said it is lame but lame for me. i dont do any hauling whatsoever so i want something that is more for everday driving. also something that would be fun to bang through the gears every once in a while!
In that case, I would look for a super t-10. They are basically a newer version of the muncie, and have at least 4 different gear ratios to choose from. Parts should be cheaper, and more readily available.
Jim_PA is offline   Reply With Quote
Old 07-19-2006, 08:19 AM   #6
wibilly
Senior Member
 
wibilly's Avatar
 
Join Date: Nov 2005
Location: northwestern wi
Posts: 2,111
Re: Manual 4spd Tranny Options

i saved a np883 from a truck i scraped for my 67 project, 4 speed manual with 4th being overdriven
__________________
common sense isn't so common anymore
wibilly is offline   Reply With Quote
Old 07-20-2006, 12:54 AM   #7
jimfulco
Registered User
 
Join Date: May 2003
Location: Shreveport LA
Posts: 3,170
Re: Manual 4spd Tranny Options

www.dandltransmission.com has ratio guides and ID info for common car-type 4-speeds. Multiply your rear end ratio by the low-gear ratio and hope for a number around 9.5 or 10, maybe a bit more if you're using tall tires.
jimfulco is offline   Reply With Quote
Old 07-20-2006, 01:22 AM   #8
epthree04
Registered User
 
epthree04's Avatar
 
Join Date: Apr 2006
Location: Tucson
Posts: 86
Re: Manual 4spd Tranny Options

well i have to say i dont know anything about transmissions for chevys so no matter what i will probably have to shorten the driveshaft and then change out the x-member? also is the x-member bolt on or welded into place? i am very new to this whole thing so bare with me! i am trying to educate myself on everything little by little!
epthree04 is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 10:39 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com