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#1
03-29-2009, 04:09 PM
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TRANSMISSION CODE
Can someone please ID this tranny code: 65 MJ 178 It is currently on my 71 lemans sport. I'm thinking TH 350 off a 65 pontiac. Anyone know for sure? Thanks, David
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#2
03-29-2009, 04:24 PM
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The only transmision available was a ST300(2 speed) untill 67 and a TH400 was offered. so it is definatly not a 65' mabey 75'
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#3
03-29-2009, 04:33 PM
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Where did you find the code?
Where is the modulator? Does it have a downshift cable?
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The difference between inlaws and outlaws? Outlaws are wanted |
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#4
03-29-2009, 04:59 PM
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I'd say it is probably a 1978 TH350.
The MJ in 78 was 7MJ, I thought? The 178 is probably the date code.
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John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
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#5
03-29-2009, 06:05 PM
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I found the code on passenger side-- small circular cover(servo?). Vacuum modulator is also on pass side at the rear. I have been looking at pictures, and I think it might be a ST300 off a 65 pontiac. David
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#6
03-29-2009, 06:13 PM
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You're right.
I found the ID for the ST300. The 65 is the year, the MJ is the code for the ST300, and the 178 is the julian date for the tranny.
__________________
John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
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#7
04-02-2009, 06:23 PM
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johnta1, Thanks for your help with the tranny ID. I'm not too crazy about having this 2 speed on my 71 lemans. Do you know if I can use a TH4oo? The engine is a 350 2bbl off a 73 pontiac. David
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#8
04-02-2009, 06:56 PM
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You can use a short shaft THM 400 without too much of an issue.
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