04-27-2020, 11:09 AM
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#25
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Senior Member
Join Date: May 2010
Location: Near Rising Sun, Maryland
Posts: 10,856
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Re: One of those annoying questions...
Quote:
Originally Posted by Bored&Stroked
Car: 32 Cabriolet, full fendered - 25T LZ gears, 39 Box - late style main shaft, gears, synchro, etc..
My problem is compounded due to me running 25T LZ gears in the tranny - which are not the best combination to have with a 3.54 rear. Truth be told the higher ratios of the LZ gearset do noting for performance . . . never did, never will.
BUT - the LZ cluster is the strongest of the 39 box gearsets - though I've managed to hurt them as well. It made me almost cry to see teeth shaved off of my prior 25T cluster (was a NOS gear) . . . but so be it.
Keep in mind that my engine is far from stock and I drive it hard at times. I think the dyno at Bob Ida's was the death of the last cluster. LOL
I spend a lot of time tuning my 39 gear boxes to be the best they can be - with the best parts, tight clearances, correct cluster shafts, etc.. I can't make them any better - but I also can't make them any stronger. They are what they are . . .
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Okay B&S, thank you for your response. This answers the questions on why you weren't having as much fun driving those back roads after installing 3.54 rear gears.
__________________
John
"Never give up on what you really want to do. The person with big dreams is more powerful than one with all the facts". Albert Einstein
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