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#1 |
Registered User
Join Date: Oct 2006
Location: Pennsylvania
Posts: 19
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identifying a four speed trans.
Can some one help me identify this tranny. I thought it was a muncie but now I don't know. It has a 10 bolt side plate and an emblem that looks like an N and a P together in the casting. Thanks
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#2 |
Registered User
Join Date: Dec 2000
Location: Ringtown,PA
Posts: 555
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Re: identifying a four speed trans.
not a muncie, i would say a new process 4 speed. possibly the overdrive one. they work nice im told. Dev.
__________________
68 chevy 406 small block, budget drag racer, new best e.t 11.91 @112 67 nova numbers matching 327 4 speed 13.6 @ 102mph 70 longhorn c-30 402/4 speed 70 c-10 swb 402, muncie 4 speed 94 s-10 350/th350 3:73 posi 71 c-20 402/th400 towrig for racetruck. 72 4wd lifted on 35's 72 350/3 speed winter beater |
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#3 |
Registered User
Join Date: Oct 2006
Location: Pennsylvania
Posts: 19
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Re: identifying a four speed trans.
fast_dev,
I bought this about 10 years ago from a junk yard. They said it came out of a school bus. I had in my truck for years. If there is an overdrive in it I don't know about it. Thanks, I'm going to check on that new process. |
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#4 |
Questionable
Join Date: Mar 2005
Location: Atlanta
Posts: 13,376
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Re: identifying a four speed trans.
Please read this thread:
http://67-72chevytrucks.com/vboard/s...=muncie+tranny It will have all the info you need.
__________________
If I've got anything up for grabs, it'll be here: 7-hole gauge cluster for a 67-72 p/u FREE (link) I can't check the forum daily. If I don't reply to you within 24 hours, drop me a PM! I'm (hopefully) still alive and will reply faster to a PM. |
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#5 |
Questionable
Join Date: Mar 2005
Location: Atlanta
Posts: 13,376
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Re: identifying a four speed trans.
PS - it would help to remove the linkage. The easiest way to tell what it is will be to look at the shape of the side plate, count the number of bolts and compare to the PDF link given in that thread: http://go.mrgasket.com/pdf/trans_id.pdf
Looks like a T10, but which one is not clear. You will need to inspect the plate to know for sure.
__________________
If I've got anything up for grabs, it'll be here: 7-hole gauge cluster for a 67-72 p/u FREE (link) I can't check the forum daily. If I don't reply to you within 24 hours, drop me a PM! I'm (hopefully) still alive and will reply faster to a PM. |
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#6 |
Senior Member
![]() Join Date: Jul 2004
Location: Estherville, Iowa
Posts: 3,371
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Re: identifying a four speed trans.
Pretty sure that is an overdrive unit. It would be the New Process NP 440, or MY6, basicly an A833 Chrysler with overdrive. The front shift linkage is reversed. The OD trannys shift into what would be fourth on a normal tranny (direct) for third gear and then shift into "normal" 3rd position for 4th or overdrive. Easy way to tell is to turn the front shift linkage counter-clockwise to shift it and spin the front shaft. If the rear shaft turns faster than the front it is an overdrive unit. If the rear turns slower than the front it is not an overdrive unit. Hope that helps.
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1968 C10 307 3spd Long Fleet ------ http://67-72chevytrucks.com/vboard/s...d.php?t=201103 1970 C10 305 Super T10 Long Fleet --- http://67-72chevytrucks.com/vboard/s...d.php?t=202285 1971 C20 383 TH350 Dana Posi ----- http://67-72chevytrucks.com/vboard/s...d.php?t=206894 2001 GMC Sierra 1500 C3 6.0 Last edited by Green Machine; 01-03-2007 at 07:52 PM. |
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#7 |
Sleep-Deprived
Join Date: Sep 2002
Location: Tulsa, Oklahoma
Posts: 445
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Re: identifying a four speed trans.
You'll need one of these (1. for manual clutch) (2. for hydraullic clutch):
__________________
1971 K/10 Long Fleetside 350/350 - 6" Lift 1969 C/10 SWB 292 - Sold It |
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#8 |
Sleep-Deprived
Join Date: Sep 2002
Location: Tulsa, Oklahoma
Posts: 445
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Re: identifying a four speed trans.
Here's a couple more pics I stole
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1971 K/10 Long Fleetside 350/350 - 6" Lift 1969 C/10 SWB 292 - Sold It Last edited by 69_hafton; 01-03-2007 at 10:18 PM. |
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#9 |
Registered User
Join Date: Oct 2006
Location: Pennsylvania
Posts: 19
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Re: identifying a four speed trans.
Thank you everyone for the info. 69 hafton, I have a bell housing like pic 1. I didn't know they made a housing for hydraulic clutches. I plan on buying a kit that bolts to the housing to change to a hydraulic setup.
green machine, thanks for the info. I was reading an article about the upside down linkage bracket, which mine is like. I'm not sure I fully understand the shift pattern. Are you saying go from 1st to 2nd to 4th and then 3rd.? Thanks |
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#10 |
Sleep-Deprived
Join Date: Sep 2002
Location: Tulsa, Oklahoma
Posts: 445
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Re: identifying a four speed trans.
The shift pattern is the same as any four speed. I believe what Green Machine is getting at is internally the 3rd & 4th gears are reversed from a normal four speed on the mainshaft (?). The front shift lever on the side cover is the 3rd & 4th lever and is inverted because of this from a normal 4 speed (like yours is). Second pic is of a normal non-OD a833 from a Chrysler vehicle.
__________________
1971 K/10 Long Fleetside 350/350 - 6" Lift 1969 C/10 SWB 292 - Sold It Last edited by 69_hafton; 01-04-2007 at 02:05 PM. |
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