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#1
07-14-2026, 12:01 PM
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Thanks John...those Service Craftsmen News updates are a Great tool. What issue is that one in ? I only have late 62 through 63 issues I use for my Lemans.
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#2
07-14-2026, 12:28 PM
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No. 3 July 1968 issue.
They are very nice to have for sure. 
__________________
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
07-15-2026, 09:41 AM
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John, your comment regarding the transmission type is spot on. The normal automatic transmissions, ST, TH350. and TH400 all used a flexplate mounted torque converter which would place a twisting force on the flexplate under load. The Tempestorque version of the powerglide had the torque converter mounted on a shaft behind the transaxle and was driven by a long shaft or "ropeshaft" as it is commonly referred to, that was bolted directly to the crankshaft. So, with this particular design there was never any twisting force applied to the flexplate (flywheel) except when the started motor was engaged. My guess is that the engineers were worried about metal fatigue in the thin metal flexplate when they switched from the older Jet Away / Slim-Jim design with an actual flywheel to the new Turbo-Hydramatic Transmissions. with only flexplate/ring gear set up for the new block mounted starters.
Thanks, JK |
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