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Old 01-03-2010, 08:07 PM
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Default I need new axles

So with my new found horsepower and torque, and the 5 speed and a set of slicks, I'm thinking I need to upgrade the rearend in my car. Currently I have a 12 bolt with 3.73 gears and limited slip.

I do want to keep my current 12 bolt, but have no ideas what axles to go with. I also though t about changing to a 3.90 gear as I think the car will drive down the street better with just a touch mor erpm. Seems like with the TKo600 right now my car wants to run down the street right at an rpm that makes it want to buck and jump all the time, so I figured I would add just a bit more rpm and it should be great.

Any suggestions you guys can give would be much appreciated. I was also thinking I should do the c-clip eliminator thing I hear about, as I think this car could go 10's now, maybe.......

Thanks for the help

jeff
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1969 Chevelle SS, 505 CID BBC 686hp, Tremec TKO600, 12 bolt 3.73 rear 5 speed
2007 Trailblazer SS, LS2, 4L70E, AWD, 4.10 gears Its a 475 hp daily driving grocery getter
2006 Cadillac CTS-V LS2 and a 6 speed
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Old 01-03-2010, 08:44 PM
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I just had Dave rebuild a 12 bolt for me. We went with all Strange components. The 33 spline axles are monsters, and really nicely made. The folks at Strange are also very good to deal with. We also went with the Moser/Ford style ends. Also upgraded to 1350 series yokes for a little extra security.



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Old 01-03-2010, 09:27 PM
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Quote:
Originally Posted by piette View Post
So with my new found horsepower and torque, and the 5 speed and a set of slicks, I'm thinking I need to upgrade the rearend in my car. Currently I have a 12 bolt with 3.73 gears and limited slip.

I do want to keep my current 12 bolt, but have no ideas what axles to go with. I also though t about changing to a 3.90 gear as I think the car will drive down the street better with just a touch mor erpm. Seems like with the TKo600 right now my car wants to run down the street right at an rpm that makes it want to buck and jump all the time, so I figured I would add just a bit more rpm and it should be great.

Any suggestions you guys can give would be much appreciated. I was also thinking I should do the c-clip eliminator thing I hear about, as I think this car could go 10's now, maybe.......

Thanks for the help

jeff
I've got a nice 4.10 posi I'll sell ya for $1000
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Old 01-03-2010, 11:21 PM
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I've got a nice 4.10 posi I'll sell ya for $1000
Wouldnt that be irony at its best!!

Jeff
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1969 Chevelle SS, 505 CID BBC 686hp, Tremec TKO600, 12 bolt 3.73 rear 5 speed
2007 Trailblazer SS, LS2, 4L70E, AWD, 4.10 gears Its a 475 hp daily driving grocery getter
2006 Cadillac CTS-V LS2 and a 6 speed
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Old 01-04-2010, 09:23 PM
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You need to do what outcast did at a minimum. c-clip eliminators tend to leak.I have a steel main cap on the torque side of my spool(differential) it is from mark williams you should also have your axle tubes welded to your center and upgrade to 1/2" wheel studs with a support cover. This may seem a bit overkill but a manual trans is alot harder on the rear end.
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Old 01-04-2010, 09:38 PM
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Quote:
Originally Posted by piette View Post
Wouldnt that be irony at its best!!

Jeff
lots of iron-y, and I'd even throw in a 2.73 10-bolt open for even more iron-y
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Old 01-05-2010, 11:32 PM
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Quote:
Originally Posted by 68 nova 10.5 View Post
You need to do what outcast did at a minimum. c-clip eliminators tend to leak.I have a steel main cap on the torque side of my spool(differential) it is from mark williams you should also have your axle tubes welded to your center and upgrade to 1/2" wheel studs with a support cover. This may seem a bit overkill but a manual trans is alot harder on the rear end.
So assuming you had a basically empty 12 bolt, what would you go with for parts?

Jeff
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1969 Chevelle SS, 505 CID BBC 686hp, Tremec TKO600, 12 bolt 3.73 rear 5 speed
2007 Trailblazer SS, LS2, 4L70E, AWD, 4.10 gears Its a 475 hp daily driving grocery getter
2006 Cadillac CTS-V LS2 and a 6 speed
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Old 01-06-2010, 12:34 AM
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moser 33 spline axles with bearings for moser housing ends (big ford) moroso brute strength post unit or eaton clutch type, the 1350 style yoke and mark willams main cap. t/a support cover or equivelent also a good time to upgrade to disc brakes . note the housing ends dictate a diffrent caliper bracket so they need to be matched if you stick with the stock brakes the hole in the backing plate needs to be bigger............Glenn
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Old 01-06-2010, 04:08 PM
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Quote:
Originally Posted by 68 nova 10.5 View Post
moser 33 spline axles with bearings for moser housing ends (big ford)
Glenn,
when runningthe Ford housing ends with aftermarket axles, would these still use the axle retention setup, as a stock Ford does?
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Old 01-06-2010, 10:36 PM
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Quote:
Originally Posted by 1966_L78 View Post
Glenn,
when runningthe Ford housing ends with aftermarket axles, would these still use the axle retention setup, as a stock Ford does?
Exactly the reason to use them it is a far stronger design
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