Thanks, that's what I thought. I have a spare 12 bolt and was thinking of changing out the 10 in it now, or using parts from it, but keeping the current ratio.
Thanks, that's what I thought. I have a spare 12 bolt and was thinking of changing out the 10 in it now, or using parts from it, but keeping the current ratio.
Are you having breakage with the 10 bolt?
They usually can take a fair amount of abuse......
I don't know your powertrain but honestly, if you are running a small block automatic on stock street tires, a 10 bolt is sufficient. A 12 bolt is nothing more than bragging rights unless you have 400 hp, sticky tires, manual trans or maybe all 3 of those things!
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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles
1966 Grande Parisienne, 396 1 of 23 factory air cars
Ya I'm sure the 10 bolt will suit me fine with a 350, mild cam and iffy 300hp. With my budget, I only putter around locally, cruise to the odd S&S and do an occasional highway blast. Tires aren't cheap and it's doubtful the old beast could spin them ... never mind smoke em, anyway....
If it were possible to change the internals, I might have done it but I think the 12 bolt I have, has maybe 2.76's??? Anyway, don't want to go lower gears so...just as well.
Your original is likely 3.08? 2.73 is the 12 bolt ratio likely if it's in the 2's. Not likely worth the trouble of changing diffs if it isn't necessary.
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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles
1966 Grande Parisienne, 396 1 of 23 factory air cars
But status quo says the 12 bolt is better so......
