Re: Best alternative to a TruTrac
[Re: crash520]
#1977076
12/27/15 01:43 PM
12/27/15 01:43 PM
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Joined: Aug 2011
Posts: 2,853 Pattison Texas
CSK
master
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master
Joined: Aug 2011
Posts: 2,853
Pattison Texas
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LOL It is not a wheel bearing problem, there is NO support at the spline end of the axle with this type of carrier, the side gear will move around & lets the axle move.
1968 Charger COLD A/C Hilborn EFI 512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim 2020 T/A 392 Stock 11.79 @ 114.5
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Re: Best alternative to a TruTrac
[Re: crash520]
#1977396
12/27/15 09:03 PM
12/27/15 09:03 PM
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Joined: Oct 2013
Posts: 247 Brisbane Australia
crash520
OP
enthusiast
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OP
enthusiast
Joined: Oct 2013
Posts: 247
Brisbane Australia
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You are correct, there is nothing holding the axle in the center section, that wheel movement you see is the axle pivoting at the wheel bearing, the end float in that clip is set at 0.004" with a DTI, the bearing is tight in the housing, I am holding the wheel at 3 and 9, pushing with one hand pulling with the other, (just like you do on the front wheels to check for loose bearings).I can tighten the adjuster on the wheel bearing to no end float and still wobble the wheel. Futher to this, I swapped centers back to the factory open center (single spinner)used the same axles, same bearings, same set up only now Im using 0.008" axle end float, (ONLY THING I HAVE CHANGED IS THE DIFF CENTER, WHICH THE SIDE GEARS HAVE NO MOVEMENT GO STICK YOUR FINGER IN ONE IF YOU HAVE ONE LAYING AROUND) guess what,,,,,,,, noise is gone so those suggesting its the wheel bearing, think again.
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Re: Best alternative to a TruTrac
[Re: crash520]
#1977449
12/27/15 10:19 PM
12/27/15 10:19 PM
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Joined: Oct 2013
Posts: 247 Brisbane Australia
crash520
OP
enthusiast
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OP
enthusiast
Joined: Oct 2013
Posts: 247
Brisbane Australia
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Screamin, Cass has been talking to Eaton on this, he has multiple video's showing the side movement and agree's there is a problem, he spoke to them at SEMA and all they are saying is, its in spec, regarding the side gear movement, Cass is still arguing this with Eaton, when I first raised it with Cass, about 12-18 months after I purchased it, and about 2000Miles on it, I had been chasing the rattle from new, thinking it was exhaust, tailshaft, on and on you name it, then one day I just grabbed the wheel and wobbled it to find out it was as indicated, I knew the axle spine fitted well, figured I best just pull the third member for now and woek on the noise, now, at that point I reached out to Cass, I didnt buy it directly from him, a mate did, anyway Cass is an awesome guy as well all know, Eaton sent out a new replacement at no charge, again I praise them for this service as technically it was out of warranty, both Cass and Eaton went above and beyond, something rare in my country. Yes I can poke an axle into the bare Trutrac center and it will move side to side,,, lots. When compared to mopar single spinners or cone/clutch, their side gears have no movement. Im at a lose for now, I will pull one of them apart to see if there is a reason why they are like that, maybe they need to be that loose for whatever reason, the other thing is I have a 0 offset on my wheels maybe if I had more wheel out (less backspace) thus loading the axle more it would make no noise, who knows,
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Re: Best alternative to a TruTrac
[Re: crash520]
#1977609
12/28/15 01:01 AM
12/28/15 01:01 AM
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Joined: Jan 2003
Posts: 104,346 Garden Grove, CA
OzHemi
Penguin-hating Ginger
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Penguin-hating Ginger
Joined: Jan 2003
Posts: 104,346
Garden Grove, CA
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anyway Cass is an awesome guy as well all know 100%... I got my 9" center (with trutrac) and axles from Cass. (For the 9" diff in my Torana ) Sure is a shame though with all the issues on your's..
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Re: Best alternative to a TruTrac
[Re: crash520]
#1978821
12/29/15 08:07 PM
12/29/15 08:07 PM
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Joined: Jul 2006
Posts: 4,319 Puyallup, WA
StealthWedge67
master
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master
Joined: Jul 2006
Posts: 4,319
Puyallup, WA
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I'll offer that my experience with the Detroit locker has been just fine. Been running one in my 8.75 for 3 years now. People say they are noisy; I rarely hear a thing. People say they clunk in & out... I occasionally feel it "shift" or "unlock" when slowing while going around a corner, but as long as you know what it is... no big deal. Durability wise: its been bombproof. The only issue I have with it is that as you get on and off the gas, it will want to push the car left or right as it unlocks and locks. This is no big deal, until you chop the throttle a couple of times at the top end of the drag strip at 115 mph. Then, it will get your attention. As I look to do more racing over the next few years, I will likely be going to a spool partly because of that issue. If it weren't for the racing thing, I'd be happy as a could be with my locker.
LemonWedge - Street heavy / Strip ready - 11.07 @ 120
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Re: Best alternative to a TruTrac
[Re: crash520]
#1978896
12/29/15 09:46 PM
12/29/15 09:46 PM
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Joined: Dec 2014
Posts: 5,777 ohio
ruderunner
master
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master
Joined: Dec 2014
Posts: 5,777
ohio
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As someone whos logged at least 100000 miles in detroit equippped trucks, I love em.
Spendy but bulletproof and always there since there's not really anything to wear out like clutches.
Angry white pureblood male
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Re: Best alternative to a TruTrac
[Re: crash520]
#1979377
12/30/15 04:02 PM
12/30/15 04:02 PM
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Joined: Jan 2003
Posts: 74,976 U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 74,976
U.S.S.A.
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Stanton, good question! Pretty much what I asked in my first post, I guess my options are, Detroit locker, cone style, clutch pack style and spool, are there any others to throw in the mix? When I track it, it will have slicks and I'm pushing for around 500 RWHP, we should hit 600 flywheel easily. 727 and not a transbrake. If you have that much power, and slicks, you should cross ANY type of CONE type off your list or you'll be back in it again , CONE types are GARBAGE by design .
running up my post count some more .
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Re: Best alternative to a TruTrac
[Re: StealthWedge67]
#1979735
12/30/15 11:24 PM
12/30/15 11:24 PM
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Joined: Jan 2003
Posts: 27,421 Balt. Md
383man
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 27,421
Balt. Md
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I'll offer that my experience with the Detroit locker has been just fine. Been running one in my 8.75 for 3 years now. People say they are noisy; I rarely hear a thing. People say they clunk in & out... I occasionally feel it "shift" or "unlock" when slowing while going around a corner, but as long as you know what it is... no big deal. Durability wise: its been bombproof. The only issue I have with it is that as you get on and off the gas, it will want to push the car left or right as it unlocks and locks. This is no big deal, until you chop the throttle a couple of times at the top end of the drag strip at 115 mph. Then, it will get your attention. As I look to do more racing over the next few years, I will likely be going to a spool partly because of that issue. If it weren't for the racing thing, I'd be happy as a could be with my locker.
I agree as I have been running a Detroit Locker in my 8-3/4 about 6 years. But I have never had any problems of it making my car go to one side or the other. After I go through the traps I just lift the throttle and it slows down straight as an arrow even when braking or downshifting.
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