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Broken diff questions

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Old Mar 30, 2008 | 12:41 PM
  #21  
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Wow. I would never drive a car in that bad of condition unless i cleaned up all the rust and replaced the frame. Bent frame will contribute to a broken diff due to nothing lining up perfectly. Brake lines look like there ready to let go.. Flame on.


Originally Posted by DTE Powertrain

Well Jan, since you seem to have a very difficult time providing the whole *accurate* story here everytime you come on here to unjustifyably bash us, I'll set the record straight for you again.

In every business, there is always one customer that one cannot be pleased no matter what is done for them- even if you give them the keys to your shop, your house, the deeds to your insurance policies and your first born. You are that customer and Lord knows....we certainly tried to work with you, but you are entirely impossible to deal with and continually smacked us in the face for it time-and-time again.

You didn't mention here that your car was a rusty, corroded wreck salvage that was drug out of a junk yard and patched-up enough to get back on the road.... You didn't mention that you have been driving around with both airbags deployed from the crash it was in and that you simply waded up the airbag material in a ball to stuff it back into the steering wheel- only to seal it up with duct tape.... You didn't mention that the frame was bent in the crash- even though you "say" it's straight... You didn't mention that the steering wheel position was off approx. 100* from center, even though the car was heading straight.... You didn't mention that the brake lines were nearly rusted through, the upper shock mounts were already more than half rusted through and the rear suspension bushings were sloppy and moved back-and-forth with the car just setting there..... You didn't mention how *BOTH* motor mounts bolts were completely missing form the chassis, as were other misc. hardware throughout the car... How many *hard* miles did it have on it- 130,000+????

The issues with that car go on and one Jan and it was *YOU* who chose to drive that unsafe, junk car around on public streets, when you shouldn't have. There is *SO* much driveline deflection and free-play slop in that rear suspension, I didn't want to even take it on a test drive when it was first completed here. We had a gut feeling that we would have problems with you and that car; hence the reason I took those detailed photos like I did, because I *knew* you would play down the mechanical issues down to a lesser degree than was actually there. You proved me right....


Also, since you seemed to have forgotten- When you left here the first time after we upgraded the differential, I *STRONGLY* suggested that you fix that car before you drive it again, because it was in such poor mechanical condition. You said you understood, but then you refused to do anything more about it we later found out...

After you shattered your first differential, I asked you if you had fixed any of those mechanical issues I warned you about and you stated that you hadn't, but in your "expert" opinion, that was not the cause for the differential fracture. I wasn't going to argue with you, even though I knew better, so I gave you the benefit of the doubt by giving you a **$600+** DISCOUNT on the second differential -AND- set up the new one for **FREE** for you. We didn't have to do that in light of the situation, but we did anyway out of good faith and yet, it still wasn't enough for you, so you smacked us in the face for it anyway!

Then you called about a week later and you had shatted *another* differential!! Again, I asked you if you had fixed any of the negative mechanical issues with your car and to my surprise, you *still* hadn't touched *any* of it and that you weren't going to either, because you thought your car was "just fine". This time, I didn't warranty anything, because you absolutely refused to listen to anyone and fix that worn-out car before you took it back to the track and you got very rude on the phone.


The bottom line is this:
- You purchased a HP differential from us to use in a completely worn out car that you refused to fix...
- We warned you about that worn-out chassis and that you should take care of it first, but you refused to listen and did nothing...
- You broke a differential anyway, (no surprise) we took care of you and *again* warned you to take care of that car this time. You once again refused to listen and did nothing...
- You broke another differential (no surprise) and you wanted us to fix it again on our dime... I don't think so for the reasons clearly stated above.

Jan, if you installed a brand new engine in your car that already had an old, clogged radiator in the chassis that led to engine over-heating and ultimate failure- is it the engine's fault for the clogged radiator that caused it to overheat? Of course not and it's a wonder that *any* differential lives in that rusty, corroded, worn-out chassis of your car- let alone anything else. You *need* to get that thing fixed or return it back to the junk yard....


Old and tired are one thing Jan..... but your car is ***WAYYYYYYYYYY*** beyond that and the photos attached clearly show that. That car should *not* be on the road, let alone on a drag strip!!! It's entirely unsafe on many levels!!!!!

We tried to work with you on multiple levels Jan and you refused... We tried to offer you some free, sound advice to get that car fixed so you wouldn't have any of this happen again and you refused to listen.... We even professionally answered your other questions you asked of us via email about other things since all of this happened- even though you come on here and bash us every chance you get and you *still* smack us in the face for it and bash us anyway...

There is nothing more we can do for you Jan and it's too bad that you had to be one of THOSE customers that just can't be pleased no matter if Jesus came down here himself to take care of you. You are impossible to deal with and you refuse to look at the facts that are staring you straight in the face regarding that very unsafe car you're driving aorund. I'm glad I don't live near you to see that car on the roads....


Phil
Good luck....
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Old Mar 30, 2008 | 03:16 PM
  #22  
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Bent frame = dangerous for a whole smörgåsbord of reasons

I've yet to hear of a basic Stage 5 breaking personally, and my modified one is running like a champ, but it's for a road course.

But going to a 4.1 over a 3.42 will always lead to a weakening rear. That's simply from having to have more gear teeth, not shocking there.
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Old Mar 31, 2008 | 12:32 PM
  #23  
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I may have misspoke - The DTE gear sets may have been 3.73, the first RPM gearset was 3.73, and the RPM Built Getrag gear set that did not break was a 3.42. The new RPM Built C6 Z06 unit going into my car as this battle rages on is also a 3.42. Sorry if I caused anyone undue adjida (?) I'm just a dragrace guy. I HAVE NO ISSUES WITH DTE REGAURDING THE REAR ENDS BREAKING - Just the time it took to get up and running again after each broken event - A lot of effort by OTHERS went into keeping my C5 on the Drag Strip and Phil had more important issues to deal with, which was certainly his choice!

The lag between broken DTE rearends kept me out of Hot Rod Magazines Pump Gas Drags as the ONLY Corvette invited to compete, The Super Chevy Show at Rt 66, and the NMRA/NMCA Shoot out at Rt. 66. Rodneys Rear Ends got me INTO Hot Rod Magazines Drag Week where I broke the 4 year standing C5 Pro Charged record of 9.62 by running a 9.60, and the LSX shoot Out in Memphis, Tenn.

We have all moved on and Phil is doing great at what he does best, Rodney came to my rescue voluntarily and has helped me tremendously. Hopefully 2008 will be a year the I can repay the Guys (Dan Bills FLP, Chuck Johnson FLT, Rodney RPM, Doug ECS) that have come through for me in really ROUGH times running this 9 sec 2000 C5 at levels not seen by many Street Legal Corvettes by running all year and not breaking anything. Very few guys know what its like to break something on their Vette and NOT have a place to go and get a replacement that will NOT BREAK also! SEE YOU ALL AT THE DRAGS!!!!!!!!!!!!!!!!!!!!!!!!

JR

Last edited by JR-CRUZN-C5; Mar 31, 2008 at 12:36 PM.
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Old Mar 31, 2008 | 03:15 PM
  #24  
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Originally Posted by BERGN8R
I broke two from DTE, both 4.10's. I was running an LS1 with bolt-on. I had run a best time on 12.37 with the 4.10s. First time it blew everything to pieces on a 4500 rpm launch with very quick clutch engagement, on a very sticky track running ET Streets. My tuner felt the ring gear gave up first as teeth were broken off deep. Phil from DTE disagrees and should be adding to this discussion shortly. The second was a lazy 3700 RPM launch that broke three teeth off. I actually finished the run but ran 13.0 and drove it home. I replaced it with a new Z06 diff based on the recommendation of Chuck Mallett. I have not broken that one but I haven't beat on it as hard either. I toasted my clutch last year trying get a kinder, gentler launch. My wife would shoot me if she knew how much I spent on three diffs.

Phil, I will beat you to the punch, yes, my C5 is old and tired but all of the old parts still work! DTE does have many satisfied customers from what I can tell, I'm just not one of them.

I dont think its a DTE problem. I launched my car last year at 629RWHP/57x RWTQ on a STOCK differential. Ran 10's last year and no problems. I think if I was running 12's and had a diff. problem I would start looking deeper than the diff. Not taking sides with either party but breaking diffs on a 12 second pass???? I would point to other parts
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Old Apr 1, 2008 | 11:22 AM
  #25  
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I think Phil was right - Probably was the Motive Gears he was sent. I tried talking to Motive Gear's head guy at Rt 66 where Motive Gear was the event sponser. I tried to find out if the gears were made in China - The guy from Motive gear offered nothing and did not even want to check out the "broken teeth" I had with me. I aready said I have no issues with DTE about the breakage!

JR
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Old Apr 2, 2008 | 12:59 PM
  #26  
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Originally Posted by DTE Powertrain

In every business, there is always one customer that one cannot be pleased no matter what is done for them- even if you give them the keys to your shop, your house, the deeds to your insurance policies and your first born.

You are that customer and Lord knows....we certainly tried to work with you, but you are entirely impossible to deal with and continually smacked us in the face for it time-and-time again.

Phil
Good luck....

I have the exact same situtaion with a customer here! Don't worry truth will always win the arguement! Good luck to both parties involved.
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Old Apr 2, 2008 | 01:40 PM
  #27  
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I broke a stage 2 3.90 DTE diff on a 3 to 2 downshift at WOT probably about 5500 rpms. Pushing a 383 w/ ~ 500 whp. Can't attribute fault anywhere. Diff was potentially damaged by guy I bought it from. I called DTE to see what they could do to help me but it was too old. Everyone at DTE was polite to me but there was simply nothing to be done without more $$$ so I went back to stock diff with the brace. No problems since.

Edit: This was on street tires so I really don't know wtf happened. If DTE happens to see this maybe venture a guess? The brace was on correctly and saved my tranny case. TIA

Last edited by Boob; Apr 2, 2008 at 01:44 PM.
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Old Apr 4, 2008 | 12:09 AM
  #28  
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Dang Phil gets mad.
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