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#1
03-11-2003, 01:43 PM
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Was the M22 trans stanard on all 455 T/A's or did it also come with m20+m21?Thanks for any info.
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#2
03-11-2003, 01:43 PM
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Was the M22 trans stanard on all 455 T/A's or did it also come with m20+m21?Thanks for any info.
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#3
03-11-2003, 04:14 PM
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The M22 was the 4 speed Muncie used behind '71 & '72 Pontiac 455HO engines in performance 2 door A-bodys, Formula's, & T/A's.
The Muncie behind a '73 T/A with 455, should be a close ratio M21, coded FC. Have a '73 brewster green 4spd T/A project with this original trans, 3.42 rear, & A/C. M22 was not avail in '73, at least in the Pontiac line (believe it was still a Corvette item).
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Buzzards gotta eat... same as worms. |
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#4
03-11-2003, 06:44 PM
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OPH, are you sure the M22 wasn't available in 73? I thought the SD-455s still got the M22.
1971 Trans Am 455 HO - Cameo white 1973 Trans Am 455 - Buccaneer red 1984 Trans Am 305 - Royal blue
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1971 Trans Am 455 H.O. - Cameo white 1982 Recaro T/A 305 - Black 
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#5
03-11-2003, 06:51 PM
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http://www.iwaynet.net/~gl&lisk/1973ta.html
OPH thanks for the info,I'm still unsure what this 73 T/a (455 ZZ code)should have,I know 73 SD had the M22,at least I think they did?I was looking at the above link are they wrong ? |
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#6
03-11-2003, 06:58 PM
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OPH they say the FC code is a m22 is that a type O, (I know your a pro from all your post's+you seem to right all the time)or did you make a mistake.Sorry to doubt you.
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#7
03-11-2003, 09:20 PM
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On the '73 M22 avail, basically drawing from several practical sources. One disassembling & rebuilding quite a few big output Muncies, two M21's which were original VIN matching out of '73 455 D-port T/A's. Have not had the opportunity to rebuild an original Muncie out of an original '73SD car, but hope that day will one day come.
Also have chased down big output M22's for close to 15 years. In doing so, have examined very many real '71+ M22's, & have never run across one with '73 features & Pontiac application VIN...this just strikes me odd. One would assume with 1420 455 D-port 4spd T/A's being built in '73 + the production of 4 spd SD cars, would have run across one... Just went back through 1/73 dated master Parts book. Ck'ed countershaft & gear listings, no listing for M22 gears but listed M21 gears for '73 application. To confuse matters more, just ck'ed '73 service manual & it showed basically same text when it came to describing the Muncie trans useage as '71 Pontiac Service manual, no where did either call the trans an M22, but can see how this could be interpreted for '73. The service manual can be interpreted several ways, it was after all printed WAY before production began. As a similiar flawed example of Service Manual info, the '71 Service manual lists a 4.33 gear avail optionally for '71 8.2 10bolt A-body use with close ratio HD Muncie. Even lists an axle ID code for 4.33 HD Safe-T-Track. Unfortunately, no such axle was installed in a production '71 A-body. This axle was cancelled along with several high compression engine options....the axle still made it into '71 Service manual, though, & we can see this info on several well put together internet tech info sites today. Believe the book is still out on this one. About 8 years had a 4/73 or 6/73(?) dated Master Parts book, sold it to a SD restorer in CT, would love to see what that parts book, any dealer tech service bulletins & sales bulletins stated. Only have two contacts who own '73 4spd SD cars. One actually knows quite a bit about his car...very hands on guy. Will try & get his input as well.
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Buzzards gotta eat... same as worms. |
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#8
03-14-2003, 06:27 PM
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Seldom ck SeePee Q & A, other than when have a litle extra time, & just for grins.
 The timing on this CP post is PERFECT to our above discussion.Favorite cartoon character on said board has to be "Foghorn Leghorn" Jerry Coffee, the fellow has always cracked me up.  Ck out CP topic number 45682, as Horst & a fellow by name of '73 Green have some excellent feedback to following... Huddled around the inquisitive "young roosters", "Foghorn Leghorn" declares... "I do say, I do say boy, there were no M22's in Pontiacs & no M21's after 1970" (both statements wrong). Very entertaining reading, remind me to throw away my #'s match M22's as they did not come in my '71 & '72 HO 4spd cars. Guess I better throw the numbers match M21 out of my '73 455 4spd T/A away too... Here's to FogHorn & SeePee  (big raspberry)
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Buzzards gotta eat... same as worms. |
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#9
03-15-2003, 09:26 AM
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Imaginary transmission code out of my '73 Trans Am.
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So long, farewell. |
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#10
04-22-2003, 02:39 AM
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I bought a '73 TA, new in 5/73, and it had an M-22. I don't have any proof, and I never even double checked the codes, but when you popped the side cover there was no mistaking those gear tooth angles. Or the distinctive whine. Only car I ever sold I wish I had back.
"What could have happened, did."
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"What could have happened, did." |
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