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#1
09-22-2013, 11:30 AM
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68 Lemans Transmission ID
Gave my son a 68 LeMans I bought a few years back and need to get it road worthy. Truth is I have yet to even crawl under the car. What automatic transmission is in a 68 Lemans, 350, shifter on the column? And what is a direct replacement?
Thanks Shawn
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#2
09-22-2013, 05:28 PM
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Easy if it's original.
Look on the shifter read out. If it has 3 speeds on it - D, S, L it's a 350 Turbohydromatic If it has 2 speeds on it - D, L then it's a 2 speed tranny, (Tempestorque?) Anyway, if it's a 2 speed, a TH350 should bolt in easy enough, other than the column shifter would need changed. A TH400 could bolt in but the driveshaft would have to be shortened or changed to a TH400 one. Also, the crossmember will probably need changed, along with the column shifter. 
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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! W.E.C moment "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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#3
09-22-2013, 07:04 PM
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2-speed is officially the ST300, not a powerglide - there are no interchangeable parts between the two!
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#4
09-22-2013, 08:12 PM
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THM 350 was not introduced until 1969, so if it does have one, someone added it and if they did, thank them! If it is the original ST-300 2 speed, the THM 350 is a direct bolt-in.
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#5
09-23-2013, 07:02 AM
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And Steve is correct.
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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! W.E.C moment "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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#6
09-23-2013, 09:05 AM
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Thanks guys!
Shawn
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"Don't let fatigue make a coward of you." |
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