3.73's vs 4.10 10-bolt 'strength'
01-23-2010, 09:48 AM
#1
3.73's vs 4.10 10-bolt 'strength' I know 10-bolt and strength don't really belong in the same sentence, but I am curious as to if a 10-bolt could hold up to more abuse with a numerically lower gear ratio, ie 3.73 vs 4.10?
I know theoretically the 3.73's would be stronger due to less torque multiplication, but do they have a larger/stronger pinion also? How about 3.42's even?
The reason I am asking this is that since I have the M29 trans, my effective gearing is lower, thus the need for a numerically higher gear (ie 4.10) is not needed. So if I were to say, run some drag radials, would I have a lesser chance of grenading my 10-bolt with 3.42/3.73 vs 4.10? Just curious as to those with experience with this through an M6.
I know theoretically the 3.73's would be stronger due to less torque multiplication, but do they have a larger/stronger pinion also? How about 3.42's even?
The reason I am asking this is that since I have the M29 trans, my effective gearing is lower, thus the need for a numerically higher gear (ie 4.10) is not needed. So if I were to say, run some drag radials, would I have a lesser chance of grenading my 10-bolt with 3.42/3.73 vs 4.10? Just curious as to those with experience with this through an M6.
01-23-2010, 10:55 AM
#2
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"You're thinking is on the right track".... JMO, but part of the reasoning that the larger diameter ring & pinions last (ie: Ford 9", Dana 60, GM 12 Bolt) is due to the fact of the larger contact area promoting more strength.
Due to the fact of the 7.5-7.625" Diameter of the F-Body 10 bolt, you will have "more metal" so to speak by utilizing the 3.73's over 4.10's.
Tho with a stick, you're on borrowed time no matter what you do if you try to enjoy the cars Engine and Tranny benefits....
Due to the fact of the 7.5-7.625" Diameter of the F-Body 10 bolt, you will have "more metal" so to speak by utilizing the 3.73's over 4.10's.
Tho with a stick, you're on borrowed time no matter what you do if you try to enjoy the cars Engine and Tranny benefits....
01-23-2010, 11:21 AM
#3
So a 3.73 has more material contact than 4.10, thus helping make them 'stronger' correct? Then I assume my stock 3.42 gears have even more contact than 3.73?
Either way I know they can still break easily, I broke my original 170k rear basically stock hooking on street tires.
Either way I know they can still break easily, I broke my original 170k rear basically stock hooking on street tires.
Last edited by kgkern01; 01-23-2010 at 11:40 AM.
