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The Terminator
Driveline
Royal Purple Racing ATF in T56 Magnum
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<blockquote data-quote="bubblehead93" data-source="post: 14346387" data-attributes="member: 96609"><p>years ago, I can remember a bunch of testy forum discussions about this... bottomline, there is nothing in a cobra t56 that synchromesh can hurt... i rebuilt mine... other than a tired input shaft bearing... after 12 years of hard driving, most of it with synchromesh... the inside was like new... including the blocker rings... replaced them out of principle... also, the GM t56s used synchromesh... this is not heavy weight gear oil, pretty light weight stuff, just heavier than ATF... I think the use of ATF is all about parasitic loss and likely an attempt to beat the gas guzzler tax, just like cars today with 5W-20 oil... it is all about gas mileage... in 03 they were unsuccessful with the guzzler tax, because I paid it when I bought it... I think in 04 they were able to beat it...</p></blockquote><p></p>
[QUOTE="bubblehead93, post: 14346387, member: 96609"] years ago, I can remember a bunch of testy forum discussions about this... bottomline, there is nothing in a cobra t56 that synchromesh can hurt... i rebuilt mine... other than a tired input shaft bearing... after 12 years of hard driving, most of it with synchromesh... the inside was like new... including the blocker rings... replaced them out of principle... also, the GM t56s used synchromesh... this is not heavy weight gear oil, pretty light weight stuff, just heavier than ATF... I think the use of ATF is all about parasitic loss and likely an attempt to beat the gas guzzler tax, just like cars today with 5W-20 oil... it is all about gas mileage... in 03 they were unsuccessful with the guzzler tax, because I paid it when I bought it... I think in 04 they were able to beat it... [/QUOTE]
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Royal Purple Racing ATF in T56 Magnum
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