Broke the rear end and drive shaft. WTF

[locrzn#92]

Well got to the track last night and broke the rear end on the second pass. Who ever said the nitto Nt05'Rs were shitty Drag Radials. Launched hard and when it hit second gear I heard the carnage begin. Cut a 1.66 60ft and still limped thru the 1/8 @7.58. Wow, they broke it big time, plus the drive shaft and who knows what else. I took it to my tuners shop last night and he'll evaluate it today. It sucks big time cause I'm here without any ride and will have to rent a car. I had put the new camaro rearend in and now I have to drive 230 miles and pick up my old rear and bring it back to springfield mo to have it installed and find a drive shaft and whatever else is broken underneath. I'm hoping it didn't damage the tailshaft on the tranny. Fuck drag racing with an IRS rear. Same thing happened to my vet and I should have learned my lesson, but didn't. Don't sell your rear if you purchase a camaro, keep your g8 rear for a rainy day.

[gr8lover]

Hope its not too bad--- sorry to hear about it!!!! good luck!!!

[locrzn#92]

Guess I'll find out later, we are here in springfield for the street machine nationals and hadn't run my car all year so thought I'd run it since the track is only 20 miles away. Getting ready to find a rental and probably head home this afternoon. Last time I'm racing the old g8, just to nice a car to fuck it up. Don't really want to spend anymore money on it either.

[ULTRA Z]

That sucks i hope damage is min. and you get it back to running soon

[SullysDetailing]

That sucks. With drag radial you need a built 9", custom fab 8.8", or all rear end and tranny bushing upgraded and stronger axles in the rear. Also BMR sells a driveshafter cover to keep it from messing things up when it brakes.

Also I custom driveshaft from your local drive shaft shop shouldn't be to expensive. I know in South Florida there just a couple hundred bux

Sent from my SAMSUNG-SGH-I997 using Tapatalk

[wnt2gofst]

NO way you broke stuff it isn't possible. We just had this conversation in another thread.


All kidding aside that sucks man. But time to build it stronger for the next time.

[locrzn#92]

The worst thing is I don't have a truck and trailer anymore. I sold them after I quit racing my vet.

[Doug Hilliard]

Well got to the track last night and broke the rear end on the second pass. Who ever said the nitto Nt05'Rs were shitty Drag Radials. Launched hard and when it hit second gear I heard the carnage begin. Cut a 1.66 60ft and still limped thru the 1/8 @7.58. Wow, they broke it big time, plus the drive shaft and who knows what else. I took it to my tuners shop last night and he'll evaluate it today. It sucks big time cause I'm here without any ride and will have to rent a car. I had put the new camaro rearend in and now I have to drive 230 miles and pick up my old rear and bring it back to springfield mo to have it installed and find a drive shaft and whatever else is broken underneath. I'm hoping it didn't damage the tailshaft on the tranny. Fuck drag racing with an IRS rear. Same thing happened to my vet and I should have learned my lesson, but didn't. Don't sell your rear if you purchase a camaro, keep your g8 rear for a rainy day.
So sorry to hear this. I was wondering if the Camaro rear was better than our stock one; maybe not so much given your experience.

[BigV8]

Damn. Are you running a stall? You said launched hard. Hope it works out for the better.

[-Ray-]

Sorry to hear you broke it.

[locrzn#92]

I'd say that the camaro is no better then the stock g8. I had at least 45 passes on the stock diff. and never had a problem except when I went to the lsx shootout and I had a one wheel peal once. I know why that happened, I didn't get the rear warmed up as I usually do and got rushed up to the line as I was late getting back to the track because of construction in st louis. I usually either put it on the jack and warm it up or drive it around the pits some so it gets some heat in the rear. It never did it after the one pass, when I came back for my next pass it was warmed up and left perfectly. I'm gonna get the old rear out of the shop tomorrow and drain it then clean the hell out of it so it will be ready for fresh gear lube. I'm hoping nothing else is broken, won't know til Monday when Wes can get it on the hoist and take a better look at it. No I don't have a stall, but if I did this probably wouldn't have happened, the torque converter actually give it a little cushion before it hits the tires, mine just dead hooks off the stock converter and shocks the tires harder then having a stall in my opinion. There are many cars running a stall much faster then mine and haven't had this problem. I'll have a nice set of drag radials forsale with 10 miles and 1.5 passes on them. I'm not racing anymore IRS cars, I've blown too much money fixing them, I've learned my lesson. So, for all you guys trashing the Nt05r's, your wrong big time. Mine hooked like a mother fucker, I've got the 60' time and the broken diff to prove it. I will say this about the Nitto's, they don't hook as good on the street as the M/t's, but at the track they are equal in my opinion.

[Doug Hilliard]

Thanks for you input on the Camaro diff; I hope you can get it back together without too much cost.

[Daniel Linnett]

Sorry to hear of the mishap! dont be sharing bad luck, I dont need to fix that too. Replacing head gaskets after I forgot to turn on my methanol kit :(

[wreckwriter]

Sorry it happened to you but it's a bit of an anomaly. Mine has held up for 2 seasons being raced every weekend on slicks.

It's a bad luck thing, has little to do with the tires.


Sent from my DROID2 using Tapatalk

[GeorgeInNePa]

Sorry it happened to you but it's a bit of an anomaly. Mine has held up for 2 seasons being raced every weekend on slicks.

It's a bad luck thing, has little to do with the tires.


Sent from my DROID2 using Tapatalk

Slicks hit softer than drag radials, for the most part. Lots more sidewall flex.

[travis gore]

sorry to hear about the carnage.

[locrzn#92]

I'm done racing this car and thinking about selling it after we get the rear back in. I'm just not going to ruin a nice car like this one. I've been wanting to build a turbo car and now might be the time. I've always wanted another late 70's malibu, I'd probably do a wagon, they really like the back bumper with big hp and thats what I'll probably do if I could sell my g8. I love my car, but not going to tear up more stuff like I did my vet. I agree on the slicks, soft sidewall and doesnt shock the tires. Mine didn't break internally, it appears to have rotated and broke the mount. It probably started the process when it started to wheel hop on the frist pass. When it rotated the u joint on the drive shaft broke. The track tractor pulled me back to the pits.

[Darkmanx]

Sorry about your luck . Pedal control could of prevented it ?

[locrzn#92]

Na, it was domed to break. Slicks and a converter might have helped. Your not gonna pedal it if its hooking, why would you want to. I did that on the first pass and got back into it and it shifted prematurely to second (guys never are premature, Right?) and then started spinning again, not a very good pass on the that run. I was one of the first cars out and when I came back there had probably been 30 cars run which helped put some heat into the track for a better hook on the second pass.

[wreckwriter]

What was your launch method?

[G8GT721]

What was your launch method?

I'm curious too, I just bought some nt05r


Sent from my iPhone using Tapatalk

[locrzn#92]

Launch method is just how I've always done, bout 800 rpms or little above. Just trying to get the converter to flash a little higher. I did the same thing with the stock rear for my best ets and 60 ft times. I think the lower gear just makes it hit the tire harder and broke the top mount caused the pinion to change its attitude and broke the u joint or the yoke on the rear as far as I can see. My car set pretty low and it was dark so we couldn't really see the damage and won't know exactly til in the morning.

[wreckwriter]

That's not much harsher than my leave from idle. I'd guess the wheel hop did the damage. Real sorry it happened to you.


Sent from my DROID2 using Tapatalk

[locrzn#92]

I'm getting my old rear cleaned up, what would be the best to clean the internals with. Would carb cleaner be too harsh? I wnat to have it ready for new royal purple.

[ULTRA Z]

I'm done racing this car and thinking about selling it after we get the rear back in. I'm just not going to ruin a nice car like this one. I've been wanting to build a turbo car and now might be the time. I've always wanted another late 70's malibu, I'd probably do a wagon, they really like the back bumper with big hp and thats what I'll probably do if I could sell my g8. I love my car, but not going to tear up more stuff like I did my vet. I agree on the slicks, soft sidewall and doesnt shock the tires. Mine didn't break internally, it appears to have rotated and broke the mount. It probably started the process when it started to wheel hop on the frist pass. When it rotated the u joint on the drive shaft broke. The track tractor pulled me back to the pits.

1320 g force makes a kit that will solve this breakage so you can keep you car and race it all you want just saying if you sell you will loose more than what it would take to get that 9" rear the axles and the new driveshaft

just my way of thinking though you got a beast and I don't think racing a car is ruining it.

[locrzn#92]

I know, I've got over $42K in it with the paint, wheels, maggie, exhaust. I'm definetly not spending another $5k on it. I'm still considering my options, nothing set in stone yet.

[Boostpatrol]

I have a 9" kit thats never been used in boxes for anyone looking for an end to breakage.

[locrzn#92]

Thanks boost, but just can't consider spending that kind of money. I'm sittin on two houses right now and keeping my finances in tact until I sell my house at the lake.

[Darkmanx]

How much boost

[Boostpatrol]

6000 shipped. has a 250 posi upgrade which puts it at 6750 retail plus shipping.

[locrzn#92]

I"m running 9lbs of boost, 447 on mustang. Got the old rear all cleaned up and dusched out and ready for new royal purple. Hopefully I'll have it running again by Thursday and Wes will retune for the 2.92's. I'm excited actually, I never liked this rear anyway and the 2.92 is more fun to drive with the blower, 3.45's are more suited for NA cars.

[ULTRA Z]

I know, I've got over $42K in it with the paint, wheels, maggie, exhaust. I'm definetly not spending another $5k on it. I'm still considering my options, nothing set in stone yet.

I knew you had a good bit in it :) heck worst case just don't take it to the strip till you decide you want to get the rear my prediction is you will miss this car lol Can't blame me for trying to keep the G8 Community strong lol Your car is NICE VERY VERY NICE

[locrzn#92]

Ultra, thanks for the comments. I will not race it in the near future, I would miss it for sure. Sometimes we say things that we regret later or we don't follow thru on. Selling the car is one of them, probably won't happen. Drag radials are already for sale on the board, thats a given.

[wreckwriter]

I've been gonna get rid of mine several times after stuff went wrong :)

[G8GTSBM]

I wunder how the Camaro ZL1 DIFF would work?

(Drivetrain – It is revised with a stronger driveshaft and rear axle system, featuring a larger and stronger cast iron differential housing, stronger axles and heavy-duty limited-slip differential. This patent-pending system is designed to ensure that ZL1's tremendous power is delivered smoothly to the ground.)

[ULTRA Z]

I bought mine to be a daily driver till its payed in full 10 months from now :) then its a toy strictly a you got beat by a 4 door car toy so my mods are well a year away still :( i don't have the power to break anything yet :(

[locrzn#92]

I got the news today on the total damage, broke the rear mount, the big one, flattened the exhaust on one side, cut the evap line from the tranny (I think thats what he said) tore up the insulator in the driveshaft tunnel, the rear u joint or couple, don't think thats what they are called anymore, tore the cv boot, cv axle appears to be ok. Didn't bend the drive shaft that we can see. Basically it fucked a bunch of stuff up. Wes has the old 2.92 rear and is putting it in today. He will get the rest of the stuff done and I should have it back by thursday if he can get the parts needed. Oh well, shit happens when you put the power down and it happened to me. I'll let you know when we get er done.

[ULTRA Z]

I got the news today on the total damage, broke the rear mount, the big one, flattened the exhaust on one side, cut the evap line from the tranny (I think thats what he said) tore up the insulator in the driveshaft tunnel, the rear u joint or couple, don't think thats what they are called anymore, tore the cv boot, cv axle appears to be ok. Didn't bend the drive shaft that we can see. Basically it fucked a bunch of stuff up. Wes has the old 2.92 rear and is putting it in today. He will get the rest of the stuff done and I should have it back by thursday if he can get the parts needed. Oh well, shit happens when you put the power down and it happened to me. I'll let you know when we get er done.

dang I wish i was well a nuff off i could send you a 6grand gift card for 1320 LMAO you know with christmas coming up but i'm not :( keep us updated

[locrzn#92]

I'm good, thanks for the almost offer you made. Ha. I've not heard of the rear mount breaking off one of these rear ends. Maybe it had a casting flaw in it and didn't show up when the housing was made. Thats a pretty dam good size mount. It probably fractured on the first pass when it started to wheel hop. Just glad it didn't happen further down track, like going thru the top end lights. Who knows what could have happened. Could have it done today, guess I'll hear later this morning.

[SpeedRacerX]

I'm good, thanks for the almost offer you made. Ha. I've not heard of the rear mount breaking off one of these rear ends. Maybe it had a casting flaw in it and didn't show up when the housing was made. Thats a pretty dam good size mount. It probably fractured on the first pass when it started to wheel hop. Just glad it didn't happen further down track, like going thru the top end lights. Who knows what could have happened. Could have it done today, guess I'll hear later this morning.

Interesting. To this day, there is a 3.70 G8 GXP Diff for sale on eBay with a broken large rear mount. Last I talked to them, they rewelded it but the auction does not show it rewelded, still shows it broken off.

Could be a casting flaw or the slightest drop or hard bump on the outside of that mount when moving or installing might be enough to start a fracture. I'm just guessing with no facts though...

[locrzn#92]

Your guess is as good as mine, we don't know exactly what happened either. We will probably weld it back on later, I don't know exactly what I will do with the rear. Nothing wrong internally as far as we know, diff was moving just fine with no issues.

[locrzn#92]

I didn't see that diff on ebay, I saw a bunch but no broken mount diff.

[Greg@PacePerformance]

Here is the GXP rear. (http://cgi.ebay.com/ebaymotors/09-G8-CARRIER-ASSY-3-70-LIMITED-SLIP-92223667-ZF-OEM-/220736625663?pt=Motors_Car_Truck_Parts_Accessories&fits=Submodel%3AGXP&hash=item3364ed9bff)

Sorry to hear about the breakage. That sucks.
I don't know if I would weld that rear cover or not. You can buy a new rear cover for around $80.00 FYI.
The ZL1 is going to have a cast iron rear I'm sure just for this reason.

[locrzn#92]

I was thinking about that rear cover and thats probably the best way to go, that way I can resale the rear.

[locrzn#92]

SLO, thanks for the post and I think mine looks just like that one. I'll get that one back home on Thursday and order a rear cover, that rear only had a few thousand miles on it and 1.5 runs at the track.

[desertg8]

sorry to hear about that. you probably ran quicker 60 foot times without it breaking. with the stock cam, hoosier drag radials, and the 3600 stall my best was 1.61 with the stock cam. That was launching at idle and flashing the convertor. With the cam my 60 foot has slowed a bit. Maybe for the best considering what happened to you.

[GRRRR8]

There are companies that make beefed up covers for the Camaro that should work in our cars as well.

[locrzn#92]

I'm just gonna buy the rear case from greg@pace and sell the camaro rear. I still haven't gotten the parts from gm, guess I'll get the Monday and I'll get to pick it up Tuesday. Just 3 more days for the rental company for the truck. Sucks but thats life.

[locrzn#92]

Finally getting my car back tomorrow, dumb ass Reliable Chevrolet got the part in last week but didn't tell my tuner/shop that was do the repair that they had the coupler. Ass holes, I could have gotten it last weekend and saved myself at least $200.00 in fees for my rental car. I'm sure they won't give us a break on the coupler either. So, because their idiots I'm out a bunch more money. So, at least its fixed and I'll give it hell tomorrow. I've got the dr's and camaro rear for sale if anyone is interested. Just need to get the new rear cover with the mount next week and I'll put it on the forsale board.

[todds87ss]

Here is the GXP rear. (http://cgi.ebay.com/ebaymotors/09-G8-CARRIER-ASSY-3-70-LIMITED-SLIP-92223667-ZF-OEM-/220736625663?pt=Motors_Car_Truck_Parts_Accessories&fits=Submodel%3AGXP&hash=item3364ed9bff)

Sorry to hear about the breakage. That sucks.
I don't know if I would weld that rear cover or not. You can buy a new rear cover for around $80.00 FYI.
The ZL1 is going to have a cast iron rear I'm sure just for this reason.

that says it's for a 5 spd auto (and manuals)...is this the V6 rear?

[GeorgeInNePa]

that says it's for a 5 spd auto (and manuals)...is this the V6 rear?

That's a GXP diff.

I have a bad diff in the garage. I can sell the rear half of the case, cheap...

[locrzn#92]

How much? New they are $80.00 bucks. I had forgotten you had put a camaro rear in yours.