Re: Well, the Chevelle is D.O.A.....
 

A little donation for someone who has helped me through PM's and entertained me with awesome posts about projects. And.......................built me some pretty nice carbs!

Re: Well, the Chevelle is D.O.A.....
 

I don't know what to say, other than "thank you".

Re: Well, the Chevelle is D.O.A.....
 

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: VintageMusclecar</div><div class="ubbcode-body">I don't know what to say, other than &quot;thank you&quot;. </div></div> [img]<<GRAEMLIN_URL>>/beers.gif[/img]

Re: Well, the Chevelle is D.O.A.....
 

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: VintageMusclecar</div><div class="ubbcode-body">http://i33.photobucket.com/albums/d7...pssrh8xb1f.jpg
http://i33.photobucket.com/albums/d7...psjdx34rvx.jpg[/URL] </div></div>


Battle scars should be left permanently in my humble opinion. I left the damage unfixed under mine from a Differential explosion. Lakewood Driveshaft loop might be in order Eric. Sorry about the setback, you'll get it back on the road soon and have a blast in it.

Tommy

Re: Well, the Chevelle is D.O.A.....
 

Eric, sorry to see your busted up stuff. Be happy you weren't on the street when that happened. You know I have a twin to your car right? Mine has the OEM 283 shaft in it [whatever that is] with the L-88 and I run 11:90's [ten years] with it with no problem. And I'm sure the staging lanes are FULL of cars like ours with junk drive shafts running week after week with no issue. The vibration I think was telling you something wasn't right, something was flopping around. Perhaps the shaft already had a 'whip' [or was way out of balance] in it that just exaggerated it self at speed. Or I see you car sits pretty low in the back...maybe too low, maybe the rear pinion angle is off...I'll bet a good stock shaft would be fine....

Re: Well, the Chevelle is D.O.A.....
 

One thing's for damn sure...

When I break something, I <span style="font-weight: bold"><span style="font-style: italic"><span style="text-decoration: underline">really</span></span></span> break it. [img]<<GRAEMLIN_URL>>/rolleyes.gif[/img]

http://i33.photobucket.com/albums/d7...psfliao0n4.jpg

http://i33.photobucket.com/albums/d7...pse3u832mt.jpg

http://i33.photobucket.com/albums/d7...psr743yn59.jpg

I think the car's on the verge of earning a new nickname:

&quot;Scrapmetal&quot; [img]<<GRAEMLIN_URL>>/no.gif[/img]

The Quicktime bellhousing is junk too. The one ear on the case that managed to hang on (lower pass. side) bent that mounting tab on the bellhousing.

It's going to be a loooong road back at this rate.

Jim;

I have seen your EE car, I commented on it before re: how much I liked it. [img]<<GRAEMLIN_URL>>/beers.gif[/img]

I'm at a loss on this driveshaft issue other than to conclude that the shaft was just a P.O.S. from the get-go.

My old `67 Chevelle (the one I had before this one) ran 11's on nuts and 10's on the hose with a mild &quot;wanna-be&quot; LS6, 400 Turbo and 4.10 gears. I used a stock driveshaft in it and never had a single problem with it either.

As far as driveline angles go, I am 100% positive they were right--to within 1/2° of perfect as was concurred by two driveshaft shops I'd consulted with just before this shaft let go.

I've no choice at this point to chalk this up to &quot;sh*t happens&quot;.

Re: Well, the Chevelle is D.O.A.....
 

Wow. That is carnage of biblical proportions. Old Testament stuff and the first Autogear case I've ever seen broken.

Re: Well, the Chevelle is D.O.A.....
 

Put a Turbo 400 in it so you can still drive it this year........... [img]<<GRAEMLIN_URL>>/worship.gif[/img]

Re: Well, the Chevelle is D.O.A.....
 

That's a very strong possibility at this point.

If I could somehow manage to unload some of these carbs I've got piling up around me I <span style="font-style: italic">might</span> be able to put a &quot;real&quot; stick trans back in.

Re: Well, the Chevelle is D.O.A.....
 

Better yet........Send it over here and we'll LSA it.........LOL.....and you can have it back in two weeks......

Re: Well, the Chevelle is D.O.A.....
 

Thanks, but no. [img]<<GRAEMLIN_URL>>/wink.gif[/img]

Re: Well, the Chevelle is D.O.A.....
 

Leave it a stick...

Re: Well, the Chevelle is D.O.A.....
 

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: MosportGreen66</div><div class="ubbcode-body">Leave it a stick... </div></div>

This^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Re: Well, the Chevelle is D.O.A.....
 

Eric, I'm not sure I understand how a new lightweight hi-perf driveshaft is only rated for 4000rpm. I'm sure I&quot;m missing something.

That is terrible carnage. I never would have imagined that failure would have torn the trans off the bell!

Verne [img]<<GRAEMLIN_URL>>/dunno.gif[/img]

Re: Well, the Chevelle is D.O.A.....
 

I want to keep a stick in it if at all possible, but after this incident, whatever goes back in the car will be as bullet-proof as I can afford to make it. I have a few manual trans options I'm considering, I'll just have to wait to see how things shake out over the next week or two.

I checked the Quicktime (now owned by Lakewood) website and it appears they do offer a repair &amp; re-certification service for their bellhousings, so hopefully I don't have to throw this one on the scrap pile along with the trans &amp; driveshaft.

Verne;

It wasn't a high performance drive shaft, it was a stock replacement unit.

Look over this chart, it explains everything. It all has to do with length, tube diameter and material:

(My driveshaft was 60&quot; and 3&quot; mild steel tube)

http://www.markwilliams.com/Images/critspeed.jpg

I have decided one thing for certain--even if it means cutting/altering the driveshaft tunnel, the car <span style="font-weight: bold">will</span> have a 4&quot; drive shaft in it this time.

This is about how I feel right now.

http://i.stack.imgur.com/Ie2uP.gif

Re: Well, the Chevelle is D.O.A.....
 

I bought this for my Nova when I went back to a Muncie. Real nice piece and great people to deal with. A driveline vibration disappeared after this (not that my car does not have enough vibrations due to solid mounts)
This was $467 to my door in 2013. It is a 3.5&quot; by 54.75&quot;. The 3.5 inch is tight in the tunnel, but doable.

http://i1043.photobucket.com/albums/...pse2f9a2d1.jpg

Re: Well, the Chevelle is D.O.A.....
 

Aluminum?

Re: Well, the Chevelle is D.O.A.....
 

Yes it is

Re: Well, the Chevelle is D.O.A.....
 

Eric, really sorry to hear about the mishap. I had something similar happen to me going about 100 mph when the trans tailshaft grenaded. I'm all for more HP, but for only a 25 HP loss on a non competition car, I think it seems more practical to go back to the stock oil pan. LOTS of hipo engines running just fine with a stock pan and that eliminates the needs for expensive and custom driveshaft and all the other issues.

Re: Well, the Chevelle is D.O.A.....
 

It wasn't just 25 HP, it also resolved a serious windage issue which was causing oil pressure to drop rapidly above 5500 rpm. These 4.25&quot;+ stroke cranks open up a whole `nother can of worms when it comes to oil control.

I'm considering picking up another identical Milodon pan and reducing the front sump depth by ~1/2&quot; which would allow the engine to sit at OEM height.

Re: Well, the Chevelle is D.O.A.....
 

Tim -- you said ... This was $467 to my door in 2013. It is a 3.5&quot; by 54.75&quot;. The 3.5 inch is tight in the tunnel, but doable

You didn't indicate what year Nova -- but aren't Nova driveshafts normally about 51-51 inches? ... TAZ

Re: Well, the Chevelle is D.O.A.....
 

Sorry - should read 51-52 inches ...

Re: Well, the Chevelle is D.O.A.....
 

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: earntaz</div><div class="ubbcode-body">Tim -- you said ... This was $467 to my door in 2013. It is a 3.5&quot; by 54.75&quot;. The 3.5 inch is tight in the tunnel, but doable

You didn't indicate what year Nova -- but aren't Nova driveshafts normally about 51-51 inches? ... TAZ </div></div>

It is a 67. That should explain the difference. One other item to add, although I do not think it makes a big difference, I have a Ford 9&quot; in the car

Tim

Re: Well, the Chevelle is D.O.A.....
 

Thanks Tim -- that explains it. I had a 64 wagon with a 355 but I don't remember how long the DS was. How is everything in Waukesha these days? I am originally from the Shawano area and now in south Texas -- snow is a four-letter-word. LOL

TAZ

Re: Well, the Chevelle is D.O.A.....
 

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: earntaz</div><div class="ubbcode-body">Thanks Tim -- that explains it. I had a 64 wagon with a 355 but I don't remember how long the DS was. How is everything in Waukesha these days? I am originally from the Shawano area and now in south Texas -- snow is a four-letter-word. LOL

TAZ </div></div>

Here it is................May 10th...................55 degrees.....................drizzle............... ..feels like Memorial Day.

Besides that..............life is good! Took the Nova out for a good beating yesterday and now everything in the universe seems right! [img]<<GRAEMLIN_URL>>/3gears.gif[/img]

Re: Well, the Chevelle is D.O.A.....
 

A suitable replacement transmission has been located and will be ordered tomorrow.

What it <span style="font-style: italic">isn't</span>:

<span style="text-decoration: line-through">Muncie</span>

<span style="text-decoration: line-through">B/W T10</span>

<span style="text-decoration: line-through">Richmond</span>

<span style="text-decoration: line-through">Gforce</span>

<span style="text-decoration: line-through">Liberty</span>

What it <span style="font-style: italic">is</span>:

It is a manual and should eliminate any further potential for breakage. It's almost a direct bolt-in for the Muncie save for a little crossmember re-location, and best of all it does <span style="font-weight: bold"><span style="text-decoration: underline">not</span></span> require cutting the trans tunnel, PLUS it's a few inches LONGER than a Muncie which = a shorter driveshaft. (Along those lines, I've also found a 12 bolt pinion yoke that's apparently 1&quot; taller than an OEM yoke which takes another inch off the driveshaft)

More details soon.

Re: Well, the Chevelle is D.O.A.....
 

Jericho ?

Re: Well, the Chevelle is D.O.A.....
 

Check your PM's.

Re: Well, the Chevelle is D.O.A.....
 

Ya' don't need the clutch after first gear ... ??? Yee Hah!!!

Re: Well, the Chevelle is D.O.A.....
 

Nope, not a Jerico.

I'll spill the beans as soon as it arrives.

Re: Well, the Chevelle is D.O.A.....
 

DOUG NASH
4 SPEED
or
5 Speed.... 4+1

TREMEC
?

Re: Well, the Chevelle is D.O.A.....
 

Nope and nope.

Re: Well, the Chevelle is D.O.A.....
 

Mopar A-833?


Jason

Re: Well, the Chevelle is D.O.A.....
 

TreMec

Re: Well, the Chevelle is D.O.A.....
 

I still don't understand this one. There must be thousands of Chevelles out there that have turned 4000 rpm in high gear (1:1) many times on stock driveshafts. Munice + 12-bolt = stock length shaft, right? The factory offered 4:10s which would put the driveshaft at that speed barely above legal posted speed limits. I wonder what was going on in your car that made it spit out the shaft?

Re: Well, the Chevelle is D.O.A.....
 

Not a Mopar and not a Tremec.

I'll post up the details once it's here.

John, at this point all I can conclude is that the shaft was junk from the beginning. That still doesn't explain why the 2nd shaft also had a vibration (out of balance or warped also??), but at this point it's water under the bridge. All I can do is pick up the pieces (literally) and move forward.

Re: Well, the Chevelle is D.O.A.....
 

You're killing me!

http://www.richmondgear.com/index.ph...t-5-speed-w-od

????????????????????????????????????????

Re: Well, the Chevelle is D.O.A.....
 

oooops

you already crossed out the Richmond

kan't reed weell

Re: Well, the Chevelle is D.O.A.....
 

That was actually my first choice, but as per a call directly to Richmond yesterday, that box won't be available until July at the earliest.

Re: Well, the Chevelle is D.O.A.....
 

The part that confuses me...it came apart under no real load. At what RPM would this have failed on the ground with traction /weight and increase friction-resistance in the driveline ? It could have been much worse. How much depth was in the yoke engagement, how did it slip under rotation? Could there have been a bind adding stress to the shaft during torque / suspension cycling? Any clues on what's left of the Muncie or the shaft (tubing, wall thickness, cracks) itself?

I enjoy doing Destructive &amp; NDT testing on Welded-Fabricated components here at work....I find all failures interesting as they each tell a story. I'm looking forward to seeing this back together !


BIG