Gear questions?
Gear questions? i have a couple questions about gears.
i have an M6 with 3:42's right now and was thinking about 3.73's or 4.10's
i need to know the pros and cons of changing out the gears? IE. gas mileage, traction, Top end, and cruising. is my rpm's going to be alot higher when im cruising down the parkway at 75 mph? thanks alot --steve--
i have an M6 with 3:42's right now and was thinking about 3.73's or 4.10's
i need to know the pros and cons of changing out the gears? IE. gas mileage, traction, Top end, and cruising. is my rpm's going to be alot higher when im cruising down the parkway at 75 mph? thanks alot --steve--
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From: Your Reality Check Bounced...
keep the 342's and start saving for a 12bolt....410's especially, and 373's have a lot thinner teeth than the 342's and can handle power. You'll rip the teeth off the 410's for sure if you ever get traction....and the 373's won't handle much more than the 410's.
good point, i have definatly heard people talking about breaking teeth of the gears. im just gunna save up for a new clutch and rear. when i get a 12 bolt ill probally put 373's
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From: Lincolnton, NC
I had mine rear rebuilt with all new internals, 4.10's and TA cover. IF, you are not a drag racer at the strip or do not do high RMP launches your stock rear will be fine. I would replace all the bearings with new when you do the swap and add a TA cover for added strength. Go to a 12 bolt if your a drag racer.
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Originally Posted by JoSeY
keep the 342's and start saving for a 12bolt....410's especially, and 373's have a lot thinner teeth than the 342's and can handle power. You'll rip the teeth off the 410's for sure if you ever get traction....and the 373's won't handle much more than the 410's.
Not true, the gears are the same thickness. The only difference between 3.42s and 4.10s in the pinion gear has less teeth, making the pinion gear itself smaller. The ring gear has the same number of gears. In fact the ring gear itself is a thicker unit in a 4.10 setup since it needs to make up the space for the smaller pinion gear. Typically the pinion gear will break first since it is smaller.
With that said, I've had my 4.10s in my stock 10bolt for over 7 months now without incident. They are a GREAT gear for an M6 car. IMHO, M6s should have come with this gear from the factory, especially with stock power. It is absolutely fine for highway driving also. I only run street tires on my car, so I am not worried about breaking anything... If you plan on running sticky tires, save for a 12-bolt.
Tommy
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Verdad Gallardo TECH Fanatic
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From: Your Reality Check Bounced...
The TEETH is what I said was skinnier in the 410's....which is why anyone that goes out to the strip w/some good traction will have problems w/the 410's sooner than later....very sooner than later
