: Learning from the pain of the power hungry.....
BMDMAX 01-16-2005, 09:45 PM I recently broke a wheel stud on the 02 truck. The thread cracked off and jammed inside the lug nut. My Aircat impact had the balls to get the lugnut off of the stud but it slicked every bit of thread right off of it.
Replacing a wheel stud on the rear assembly is an crappy process, no way to do it on the truck because of the e-brake shoes. If you ever have to do this job you will need the axle oil seal, the outer axle seal and the outer bearing retaining nut tool from kent moore. You can remove the retaining nut with ease but tightening it back up to the proper clearance spec without it would be real trouble. You probably could fabricate one with a socket and a grinder but having a good contact at a dealership for a loaner tool works better. ;)
While I had it apart I figured I would service the rear diff since it was due anyway. The fluid had no shortage of metal flakes and there were some big metal chunks coming out. Censored The ring and pinion and spider gears were perfect but the locker cam gear and governer gear are smoked.
Anyone running big power can probably expect the same damage. You must pull the locker out to repair the damage so I am hoping some manufacturer will come out with something soon.
Here is a shot of the rotor. You can see the tool you need to remove the retaining nut I mentioned earlier.
http://bmdmax.u27.infinology.net/images/Rotor.jpg
Here is a shot of the axle. It is a beefy unit.
http://bmdmax.u27.infinology.net/images/Axle.JPG
http://bmdmax.u27.infinology.net/images/Axle2.JPG
Here are a few shots of the hub assembly. You can see the keyed retaining nut and snap ring that holds in the key.
http://bmdmax.u27.infinology.net/images/Hub2.jpg
http://bmdmax.u27.infinology.net/images/Hub3.jpg
Here is the differential and the damage on the cam gear / governer assembly. The locker gear is puny in comparison to the rest of the rotating parts back there.
http://bmdmax.u27.infinology.net/images/Differential.jpg
http://bmdmax.u27.infinology.net/images/Damage2.jpg
http://bmdmax.u27.infinology.net/images/Damage3.jpg
I am reassembling the axle here.
http://bmdmax.u27.infinology.net/images/Axle4.JPG
I did add a nice PML cover when I put it back together but I forgot to take a photo. I will get a shot of it and post it though. It added about a quart and a half of capacity and cost about a hundred bucks less than the Mag-Hytec.
If you have never pulled the cover and are running extra power you should definitely take a look. :( Until I get a better solution drag racing is going to be a real *****. Censored
TheBac 01-16-2005, 10:02 PM Sorry to see that happen to you , Brandon. Hate to ask what the cost would be to fix it.
Tom http://dieselplace.com/forum/attachment.php?attachmentid=107
GMC-2002-Dmax 01-16-2005, 10:10 PM chevmeister locker took a dumper in his dually, he carries a lot of weight and pulls a lot of weight........
Load or tq is killing them,
Diesel Power blew his rearend too..........as of lately mine seems OK, but I have noticed some instances when I have rolled on it hard and only gotten a 1 legger :mad: Censored :mad: Censored
If mine is smoked I hope someone has an answer as well...........
T:cool: NY
BMDMAX 01-16-2005, 10:11 PM Sorry to see that happen to you , Brandon. Hate to ask what the cost would be to fix it.
Tom http://dieselplace.com/forum/attachment.php?attachmentid=107
The parts to fix the G80 are not too bad. The cam gear (the larger gear with a bunch of small teeth) is about 45 bucks. I did not price the governer assembly but even with some clutch disks for the G80 I bet you could rebuild it for less than a hundred bucks. The killer is pulling the diff out and all the work to re-shim etc, etc. I figure if I am going to do all that put in better stuff and only fix it once.
I can still drive it but I feel like a peg-leg pirate. Arrrrggh matey. :eek:
TheBac 01-16-2005, 10:22 PM Here's a smiley just for you then, Brandon.
http://dieselplace.com/forum/attachment.php?attachmentid=948
BTW, how do you drive with the hook and the parrot?
Tom http://dieselplace.com/forum/attachment.php?attachmentid=107
On the serious side....I would have thought the rear end was the one part of the driveline we didn't have to worry about.
BMDMAX 01-16-2005, 10:44 PM Here's a smiley just for you then, Brandon.
http://dieselplace.com/forum/attachment.php?attachmentid=948
BTW, how do you drive with the hook and the parrot?
Tom http://dieselplace.com/forum/attachment.php?attachmentid=107
On the serious side....I would have thought the rear end was the one part of the driveline we didn't have to worry about.
LMAO Tom, good smiley. :D
We don't have to worry about the gears or case but that locker has pusswagon parts for sure.
Tony, Got Juice smoked his too. Looks like we need to start a club. ):h
GMC-2002-Dmax 01-16-2005, 11:00 PM Tony, Got Juice smoked his too. Looks like we need to start a club. ):h
I am going to add to my SIG.........
G80 one legger................:eek:
TheBac 01-16-2005, 11:05 PM We don't have to worry about the gears or case but that locker has pusswagon parts for sure.
Tony, Got Juice smoked his too. Looks like we need to start a club. ):hpusswagon!!! I remember thats what we used to call a van in the 70's.
I didn't realize Tony did in his too. Boy, you'd think a carrier that big would have stronger internals. :eek:
Tom http://dieselplace.com/forum/attachment.php?attachmentid=107
Got Juice? 01-16-2005, 11:07 PM I am going to add to my SIG.........
G80 one legger................:eek:
I was thinking more like
G-80.... The War Amps):h
GMC-2002-Dmax 01-16-2005, 11:09 PM I am not sure I have done it in yet, but I will know when I get it to the track and try some 2wd runs............):h
Last time I did a standing roll~on it spun both thru 4 gears but every once in a while I get the right rear only...............
So I may have to drop the rear cover and peak.............:eek:
Los Lobos 01-17-2005, 02:45 AM Add me to the club or should it be a gang? I noticed last night it was fully locked up when I was turning in the parking lot and not under power. Someone else recently commented I only had a one tire fire also. Sounds like an on again off again thing.
Maybe if we start wearing a patch on one eye we won't notice the other tire not spinning. ARRGGGHHHH!!!
Blinky 01-18-2005, 11:17 AM BMD,
Is this something caused by repeated burnouts and/or donuts, drag racing, or sled pullin'? Or was it caused by just drivin' her hard and fast with added HP? How much added HP? Stacked programs and drugs?
I see in your sig that you list a SC Lvl IV and multiple programs and drugs.....just curious.....
Thanks.
BMDMAX 01-18-2005, 12:22 PM BMD,
Is this something caused by repeated burnouts and/or donuts, drag racing, or sled pullin'? Or was it caused by just drivin' her hard and fast with added HP? How much added HP? Stacked programs and drugs?
I see in your sig that you list a SC Lvl IV and multiple programs and drugs.....just curious.....
Thanks.
Blinky,
I have only drag raced my truck, no sled pulling. Since I have a 2WD that I run with slicks no shortage of burnouts. Very few street burnouts since the tires get expensive. ;) The truck is driven fairly hard daily at 500HP/1000TQ and on the bottle depending on what I am running has seen 740HP/1442TQ.
No shortage of abuse as far as power but my driving habits applying that power have been within reaon. No donuts, powerslides or spooling up the speedo to about 80MPH with the truck going about 5MPH. :eek: I like to go fast in a straight line with good hooks. :cool:
Blinky 01-18-2005, 01:29 PM Very cool BMD...... :cool:
You're running alot more power than I do ... and in this case that is a very good thing:D
I feel much better now......):h
Thanks.
Got Juice? 01-18-2005, 01:45 PM No donuts, powerslides or spooling up the speedo to about 80MPH with the truck going about 5MPH. :eek: I like to go fast in a straight line with good hooks. :cool:
No donuts, powerslides or spooling up the speedo to about 80MPH with the truck going about 5MPH. :eek: I like to go fast in a straight line with good hooks. :cool:
No donuts, powerslides or spooling up the speedo to about 80MPH with the truck going about 5MPH. :eek: I like to go fast in a straight line with good hooks. :cool:
No donuts, powerslides or spooling up the speedo to about 80MPH with the truck going about 5MPH. :eek: I like to go fast in a straight line with good hooks. :cool:
No donuts, powerslides or spooling up the speedo to about 80MPH with the truck going about 5MPH. :eek: I like to go fast in a straight line with good hooks. :cool:
No donuts, powerslides or spooling up the speedo to about 80MPH with the truck going about 5MPH. :eek: I like to go fast in a straight line with good hooks. :cool:
What fun is that?):h
:eek: No Showboating at all?:rolleyes: :eek: ):h
BMDMAX 01-18-2005, 02:28 PM Well, I do have SOME fun. :D I have roasted the tires for good measure a few times. Last time I had the pizza cutters on they laid down dual 150' stripes.
Everytime you read about the big showboaters with the donuts or huge street burnouts it is usually followed by the rear diff grenading completely, the trans getting wasted or the motor / turbo coming up lame.
My income-to-stupidity ratio is not quite high enough to allow such hi-jinks. :(
Now if I had buckets o' cash I would probably have to buy a tire shop to support my bad habits..... :ro)
Blinky 01-18-2005, 02:42 PM My income-to-stupidity ratio is not quite high enough to allow such hi-jinks. :(
Filing that one away for future use..... very funny BMD):h
Got Juice? 01-18-2005, 02:59 PM My income-to-stupidity ratio is not quite high enough to allow such hi-jinks. :(
I believe my ratio is balanced.... And I am sure i would have the $$$$ to replace my rearend in the bank; BUUUUUT----->
I blame GM and their Turbocharger Failure Rate on my truck. Sheesh;) Most turbos have a 50% or better safety margin built into them):h Most Turbos last as long as the engine):h Most Turbos Don't mind Barking like dogs at lesser Vehicles):h Most Turbos are easy to replace):h Sheesh.... to think that one could blow a turbo using a 200.00 Wastegate):h When a 1.99 Set of Juicegrips(TM) can accomplish the same result:ro)
Burner 01-18-2005, 04:28 PM what does AA do differently in the Dodge than the GM? The 'other' rear looks a bit stronger..... I think the axels are a weee bit larger as well.
Start shooting.............flame suit is on. ):h
Burner
Frank Blum 01-18-2005, 07:51 PM Are you guys with the power changing the fluid more often? Later! Frank
Burner 01-18-2005, 10:24 PM No burning spears?
Cool :ro)
what does AA do differently in the Dodge than the GM? The 'other' rear looks a bit stronger..... I think the axels are a weee bit larger as well.
Start shooting.............flame suit is on. ):h
Burner
Diesel Power now runs the Dodge OEM AAM torsen type dif. It fits in the GM trucks as Nick has proved.
Dodge uses bigger axle tubes in the rear.
Dodge uses axle tubes in the front ):h
Burner 01-18-2005, 10:30 PM I wonder how it will hold up?
I guess we'll find out when Nick does some figure 8's in the lot, eh? :ro)
Burner------------------> :D
blizzardplowman 01-18-2005, 11:05 PM My income-to-stupidity ratio is not quite high enough to allow such hi-jinks. http://www.dieselplace.com/forum/images/smilies/frown.gif
Now if I had buckets o' cash I would probably have to buy a tire shop to support my bad habits.....
ROTHLMAO- that is just to darn funny- is it for an actual lack of cash or the shortage that would be created because the better half don't under stand the need.. for speed?):h
Nick..... hows it hangin?
BTW BMDMAX, thanks for taking the time to take and post the quality photos. How were the e-brake shoes? Some were having issues of premature e-brake shoe wear and they didn't use the thing. Something about dragging shoes.
This does relate to me some as my truck has a similar e-brake setup.
I think that small gear is for the locker governer.... I think it detects rpm differences and releases the flyweight when the difference occurs. The flyweight cams the tapered block into the sidegears, forcing clutch engagement.
But after a certain speed, centrifical force keeps keeps the flyweight out so it will not lock.
partsguy662 01-19-2005, 12:14 PM Hoot, since you disect every truck you buy, and you've had both now..Could you see a major difference between the actual locker between the dodge and GM? If so, what were they? :confused:
Hoot, since you disect every truck you buy, and you've had both now..Could you see a major difference between the actual locker between the dodge and GM? If so, what were they? :confused:
GM uses what I described above.... a cam operated clutch pack locker.
Dodge uses a torsen style differential that has no clutches and is nothing like any locker. It is a proportional "biased" differential that tranfers torque by way of worm gears.
http://www.sonic.net/garyg/zonc/TechnicalInformation/images/Figure1.gif
http://www.sonic.net/garyg/zonc/TechnicalInformation/images/Figure5.gif
Read about it here.http://www.sonic.net/garyg/zonc/TechnicalInformation/TorsenDifferential.html
Here's mine http://www.getdieselpower.com/my04dodge_files/mag-hytec/images/DSCN5298.jpg
More pics of mine.... (http://www.getdieselpower.com/my04dodge_files/mag-hytec/index.htm)
partsguy662 01-19-2005, 12:28 PM Very interesting...thanks hoot
Slick 01-19-2005, 03:19 PM Since most of us launch in 4-wheel drive, and Brandon has a 2x4...could we say his rear is taking twice the punishment? I think the other failures I have heard of have been from doing donuts or burnouts.(Got Juice?, and Nick, don't know for sure on the others)
Got Juice? 01-19-2005, 03:45 PM Burnouts? Never Done one.... but i have been guilty of 'aggressive tire rotation'
or after tire rotation F/R making the tires centre tread match the side tread from the front tires.... LOL
BMDMAX 01-19-2005, 03:54 PM Nick..... hows it hangin?
BTW BMDMAX, thanks for taking the time to take and post the quality photos. How were the e-brake shoes? Some were having issues of premature e-brake shoe wear and they didn't use the thing. Something about dragging shoes.
This does relate to me some as my truck has a similar e-brake setup.
I think that small gear is for the locker governer.... I think it detects rpm differences and releases the flyweight when the difference occurs. The flyweight cams the tapered block into the sidegears, forcing clutch engagement.
But after a certain speed, centrifical force keeps keeps the flyweight out so it will not lock.
Hoot,
No problem. Thanks for the tip on the potential Dodge replacement. From what I can tell that unit is made by AAM and is the TracRite GT model. AAM considers it to be a limited slip unit (sans clutches) and not a locker. Anybody know for sure?
My e-brake shoes were in pretty good shape, no odd wear or dragging tha I could see. I am in a low salt low rust area so that may help.
Got Juice? 01-19-2005, 05:13 PM That would be my first choice in a rear diff.
TORSEN
TORque SENsing
I noticed on AAM's site no bias application ratio is listed???? or did i miss it?
BMDMAX 01-19-2005, 06:04 PM That would be my first choice in a rear diff.
TORSEN
TORque SENsing
I noticed on AAM's site no bias application ratio is listed???? or did i miss it?
Hell, I would be happy with just the Dodge part number. Any of your Dodge crew know what it might be?
Got Juice? 01-19-2005, 06:16 PM Hell, I would be happy with just the Dodge part number. Any of your Dodge crew know what it might be?
I believe that they do .. I will ask and post results here
BMDMAX 01-19-2005, 07:06 PM Thanks!
DIFFERENTIAL TRAC-RITE
DESCRIPTION
The Trac-Rite™ differential is a helical gear differential.
The differential has two side gears, six pinion
gears and six pinion brake shoes.
NOTE: The differential is seviced as an assembly
only if damaged, but can be disassembled for
cleaning. The assembly should be cleaned every
time a bearing is changed due to damage.
OPERATION
When one wheel begins to spin the pinion gears on
that side are forced toward the pinion brake shoes.
The pinion brake shoes then cause frictional drag on
the opposite pinion gears and the side gear. These
friction forces transfer the power to the opposite
wheel. Once the frictional forces are overcome, differentiation
will occur. The torque will be continually
biased by the frictional forces to the high traction
wheel.
Clear as mud. I was wrong though... I didn't know this one had any type of clutch mechanism.
Burner 01-19-2005, 09:32 PM :confused: Which is better? Will the worms make it to 500k for the "regulars'....
BIGBLOCKBILL 01-19-2005, 11:37 PM If it's based on the Torsen design it should work fine and last forever ,even with abuse. I have a Currie version of a Torsen in my '65 Ford F100 and have beat the crap out of the truck for the last 5 yrs. with this unit. No issues around turns and it still fries both tires everytime I side-step the clutch at 5000 grand. Much more driveable than Detroits and spools I have in other trucks.:D I read somewhere about problems with the Dodge units,might want to research that some more before making the swap.
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