What breaks on a 10 bolt?
09-29-2008, 07:49 PM
#1
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What breaks on a 10 bolt? Everything? 
I have a line lock coming from SJM to help heat up my drag radials for "chevy fest" (and I just put on new brakes and dont want to ruin them).
Im on a stock 10 bolt with a 6 speed, I just want to know what parts exactly are going to break. Do the gears just shear off the ring and pinion, or something not so bad?
I have a line lock coming from SJM to help heat up my drag radials for "chevy fest" (and I just put on new brakes and dont want to ruin them). Im on a stock 10 bolt with a 6 speed, I just want to know what parts exactly are going to break. Do the gears just shear off the ring and pinion, or something not so bad?
Last edited by NateLS1; 09-30-2008 at 05:32 PM.
09-29-2008, 07:53 PM
#2
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The real problem is the case itself is weak. If your car hooks and has some power, the case distorts and walks the pinion away from the ring gear, then all hell breaks loose. There are some ways to make the case a little stronger with good covers, welding axle tubes, and stud kits, but at the end of the day you are only placing a band-aid on a light and weak case casting.
-Tim
-Tim
09-30-2008, 06:20 AM
#4
10 bolt will last a long time at your pwer level. My original one lasted 125000 miles, literally 100s of 1/4 mile passes and countless burnouts on the street. The only thing that went bad in it was that the clutches finally wore out leaving me with a one wheel peel. I have about 60 passes on the current 10 bolt with 11.5" wide hoosiers that dead hook every time with 1.56-1.59 60 foots every time. Just dont put 4.10 gears in one. the teeth are too small.
09-30-2008, 06:40 AM
#5
He's got an M6 though. So even with stock power levels and DR's if you beat on it, it will be a time bomb.
If you are hitting it hard outta the hole it won't last probably as long as you hope for. But if you wanna run a good time then you gotta drive it like you hate it.
Who knows it could last you a few years or a few weeks...Your chances are better if you leave the stock 3.42's in though. As far as whats fails, probably the pinion or the spyder gears. Us automatic guys don't shock the drivetrain like what a 5k clutch dump can do, that's what kills em'.
If you can launch and find that sweet spot where you ain't shocking the drivetrain then it may last you a good while.
If you are hitting it hard outta the hole it won't last probably as long as you hope for. But if you wanna run a good time then you gotta drive it like you hate it.
Who knows it could last you a few years or a few weeks...Your chances are better if you leave the stock 3.42's in though. As far as whats fails, probably the pinion or the spyder gears. Us automatic guys don't shock the drivetrain like what a 5k clutch dump can do, that's what kills em'.
If you can launch and find that sweet spot where you ain't shocking the drivetrain then it may last you a good while.
09-30-2008, 06:53 AM
#6
Here is the sticky in the REARS and GEARS section.....
https://ls1tech.com/forums/gears-axles/510589-when-will-my-10-bolt-break.html
Danno is correct, a M6 cars hits a WHOLE lot different then a auto. People have beefied up the rear to the MAX BUT unfortunately one thing is never going to change, the ring gear size and if you go up on the ratio, the contact pattern is even less.
Also Line lock, like said is the best thing you can have and getting the tires wet is key, but GET OUT OF THE WATER before actually burning the tires.
If you plan on racing the car like a man, and giving it all it has, it needs a Bias ply, and it needs a good rear and DS.
As long as you have that, given the clutch you can do off the limiter launches, just watch the feet.
https://ls1tech.com/forums/gears-axles/510589-when-will-my-10-bolt-break.html
Danno is correct, a M6 cars hits a WHOLE lot different then a auto. People have beefied up the rear to the MAX BUT unfortunately one thing is never going to change, the ring gear size and if you go up on the ratio, the contact pattern is even less.
Also Line lock, like said is the best thing you can have and getting the tires wet is key, but GET OUT OF THE WATER before actually burning the tires.
If you plan on racing the car like a man, and giving it all it has, it needs a Bias ply, and it needs a good rear and DS.
As long as you have that, given the clutch you can do off the limiter launches, just watch the feet.
Last edited by BlackScreaminMachine; 09-30-2008 at 07:02 AM.
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09-30-2008, 08:17 AM
#8
I have broken mine twice; first was the zezel, then the gears. I did powershift quite a bit which I know helped that. When the Zexel went it was 2 of the core bolts that hold it together backed out and snapped off on the carrier mains. I put 4.10s with a tru-trac in it before I replaced the 10bolt with an S60. Still beat the living **** out of it for about 30k miles without breaking them. My carrier bearings started to whine so i replaced the rear instead of dropping more money in that POS. That is what I've broke and had about what mods you have on yours on my 99 at the time.
09-30-2008, 09:14 AM
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At the top of 1st, mine exploded w/ just bolt ons and 3.42's. the only salvageable part was the right axle...
If you get enough traction, and launch at high rpm, it will let go eventually.
If you get enough traction, and launch at high rpm, it will let go eventually.
09-30-2008, 05:35 PM
#12
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Apparently if I slip my clutch on the launch it doesnt hold up so well for the rest of the run. I have a ls7 clutch. This is what I have been told. Im gonna go for a 4000 rpm launch so I dont bog, and barely slip the clutch.
09-30-2008, 05:55 PM
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I have rebuilt a ton of broken rears on local cars here , Broken axles, gears , spinders..... over all the rear cant take the power....need to upgrade to a 12 bolt
10-01-2008, 06:25 AM
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Hopefully its not your only vehicle if not run it until it breaks you can save for a 12 bolt over the winter, like someone said if its a long drive try to trailer it, I ran the stock 10bolt with dr's and spray for years with no problem until the 4:10s went in then it lasted a week but your best bet is to save for a moser or strange 12 bolt
10-08-2008, 01:46 PM
#17
spider gears I've blown apart the spider gears in three posi's. One ended up getting in the 4.11 and shearing the teeth off of the ring and pinion gears. Then I started preloading the rear (zbars and adj. ta bar) and it lives through 1.60 60's, but I have a 4.11, 4000 stall on an auto. Prolly best to get a used posi carrier, 8mm and 7/16 wrench, 1 1/4, 5/8, and 1/2 sockets, gasket, and 2 quarts of fluid (not that I've done this a lot) and carry it with you or else you might be left broke at the strip. "Chrome don't get you home when the rear's blown!"
Last edited by liveatstrip; 10-08-2008 at 01:51 PM.
10-09-2008, 11:31 PM
#18
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Nothing will save a 10 bolt, trust me i've had 5. 2 with stock power, The last 10 bolt had GM 4.10s auburn posi, welded axles, diff cover with "ultimate axle braces and it lasted me less than 1100 miles
10-20-2008, 06:34 AM
#20
10 bolts are the scourge of mankind and should be banned, recalled and melted into scrap to make chinese cars. Blew another one this weekend and it probably cost me a race.