WANTED: 67 Camaro M21 Tranny

[PxTx]

I'm guessing there was too much play in the tail of the trans. Either the output shaft was fatigued or the bushing was worn too much? Anyone else have thoughts on this kind of Muncie failureÖ

Paul T

[T Billigen]

Do you guys use a scatter shield when you run your cars at the reunion? Very dangerous to run a solid lifter chevy without one! [img]/ubbthreads/images/graemlins/scholar.gif[/img]

[JoeC]

It appears that something caused the trans to lock solid then the momentum of the spinning wheels, rear end, drive shaft, and Dyno caused the output shaft to shear in half and shatter the bell and trans housing. It is difficult to say without a close look at all the parts.

[Denis]

Just got back from the trans shop with the car, and a box of bits.

Appears to have been caused by the U-joint coming apart, a worn tail shaft, or both. Everything else came about as a consequence of the above. Pretty friggin' dramatic. None of the guts are worth reusing, gears look pretty worn already and not worth salvaging. Only piece that survived is the side cover and the shifter--finally, a good reason to mount the shifter on the crossmember.

Mr Maynard has most of what I need to replace the trans and bellhousing, need to follow up with him for the main case after he's had a chance to check his stash. Driveshaft will need to be trued and balanced, floor will need some mending, engine needs to come out to reweld on a broken bellhousing mounting boss (I found the broken piece).

Whew, what a day! Nothing another $5-6K won't fix.

[Chevy454]

[ QUOTE ]
Do you guys use a scatter shield when you run your cars at the reunion? Very dangerous to run a solid lifter chevy without one!

[/ QUOTE ]

I don't think NHRA requires a scattershield on stick cars until you run in the 11's. Also, you take a risk of this happening regardless if you're running at the track or, as the case may be, running on a dyno...this could have happened on a cruise just the same. I've tore up more stuff on the highway than on a track by far!

[T Billigen]

Even back in the 60s, ALL hipo chevys with solid lifters were required to have a scatter shield! I think it applied to all makes with solid lifters. How fast you ran did not matter. Then about 1970 you were also required to have a drive shaft hanger. It's funny that the people at the strip you are running at would let you run without one. It would be interesting liability issue if someone would get injured. [img]/ubbthreads/images/graemlins/dunno.gif[/img] [img]/ubbthreads/images/graemlins/[/img]

[JoeG]

Not looking to say anyone should do this or that,but Motion covered his rear[plus it was required on some tracks] by making Schiefer blow-proof clutch-flywheel and Lakewood scattershields NHRA approved ,standard equipment on PhaseIII cars. I myself did use a drive- shaft loop hanger,but you are right it can happen anywhere-----Some of you fellas have machines with 11sec territory power but because of the tires you use for being considered stock you can't harness full power--but it's still there so they are potential 11 sec machines------ Just some friendly conversation [img]/ubbthreads/images/graemlins/beers.gif[/img].-----Don't mind me when something like what happened to Denis occurs I jump up on my soap-box

[sYc]

So far, 4 different tracks have allowed us to race, with no supercar failing tech, (even the Pure stock Drags, which do not require a shield), have not ran into this problem. But hey, in this day and time, any incident is a liability issue, whether at the track or at a show. Figure in several million dollars worth of rare musclecars and watch the price of having fun rise. Even though most shows will not bother to get insurance (think about that the next time you attend a show), we do, and insurance alone at SCR6 will cost over $1500.00.

Are all of the costs involved and risks taken worth it, simply to watch a few "old" cars make a pass or two down the strip? To me, and several others, YES.

[T Billigen]

That is a good idea to have the insurance! But it won't replace those original drive train parts! [img]/ubbthreads/images/graemlins/haha.gif[/img] [img]/ubbthreads/images/graemlins/haha.gif[/img] [img]/ubbthreads/images/graemlins/[/img]

[sYc]

I am assuming, that since we both know that damage can occur at any given time, anywhere, as evident by the dyno mis-hap, that you are advocating never starting supercars, but rather pushing them where ever they need to go? [img]/ubbthreads/images/graemlins/eek.gif[/img]

Well,I guess we will just have to agree to disagree on this (and of course the merits of Super Chevy shows). [img]/ubbthreads/images/graemlins/naughty.gif[/img]