Kill Stick - Chevelle Tech
Transmission & Driveline Transmissions and Differentials

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post #1 of 18 (permalink) Old Jun 2nd, 20, 3:23 PM Thread Starter
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Kill Stick

Drivetrain Vibration- since completing my resto of my 71 El Camino I have only 200 test miles on it as I have had many problems raise there ugly head, wrong overheating reading-my fault, bad tires , bad tower clamps and a nagging vibration. I notice that driveshaft I had made by local machinist had no weights attached to it and he said he balanced it. so my gut feeling was take it out and have it checked. This am I drove to Springfield, Mo (100mi) to Power Train industries. Rick said be there by 7:30 and by 8;30 they had shaft all jigged up in machine and brought me in to see. In front of my eyes I could see this thing wobbling, the tech put gauge in three spots and it was 30 to 45 deg. Out. The owner Bob came in and said this shaft is all wrong. Too small 2-1/4 in dia and should be 3' W/ 454 AND M22. he also said material and thickness was wrong. the last thing he said was that I was very lucky that I did not take this vehicle up over 75mpg to 100mph or this shaft may have come up and slapped me upside my head. Now you know why I called this article KILL STICK. They are gonna built me correct driveshaft w/ no run out and I'll have it by Friday. It just sickens me as to how many times to w. have to deal w/ lying incompentant people and vendors and products. I am so sick of finding wrong or bad parts. even when I make a mistake i post it so no one else will do it. The only good thing we have going is this forum. people who have had similar problems or know how to head them off. everyone chips in and that is very helpful.
One bit of trivia, on the wall of Power Train Specialties is a picture of Joe Elmore & Chuck Hansen
anyway be safe and always follow gut and your heart don't get hurt. thanks for everyones help always.
Tony
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post #2 of 18 (permalink) Old Jun 2nd, 20, 3:43 PM
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Hank
 
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Re: Kill Stick

I got to the point with my car that I started asking myself if I was losing it after all these years. Seemed like everytime I took the car out at first something else would turn up. Most things ended up being faulty new parts that I had put in the car. Since then I have read many threads that made me feel like I wasn't the only one.

71 Malibu, Cottonwood Green, 396 BBC, AutoGear M22W 4 speed, 12 bolt 3:55 posi.
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post #3 of 18 (permalink) Old Jun 2nd, 20, 3:43 PM
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Re: Kill Stick

Wow, a 3 inch tube should be minimum. Glad you had it checked before you or someone else got hurt.


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post #4 of 18 (permalink) Old Jun 2nd, 20, 7:51 PM
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Re: Kill Stick

Here is what I have. Its a 1970- El Camino with a 454 (LS-5) and the M-22 transmission. I wanted to make sure my measurements were correct. So I measured the tube O.D. at the large O.D. and the Small O.D.
So here is what I found on my 454-M-22 El Camino driveshaft: The swedged down area of a factory driveshaft is 2 & 3/4" O.D. The large Dia. of the driveshaft is 3 & 1/4" O.D.
If you want to be real correct, The 1970-454 Chevelles had the 3-R Chevrolet drivelines. The " U " joints had " NO " snap rings. I also measured three or four other 1970 driveshafts. They were all the same.
I do believe you will find a LOT of 1970 454s going up and down the road with 2 & 3/4" at the(small,O.D.) choke down and 3 & 1/4" O.D. at the large Dia. I am sure my driveshaft is correct. I ordered my LS-5/M-22 in Feb. of 1970. It was built in March. ( BALT). Not at all sure if any of this may help?
Bob
P.S. The rear yoke on my CRV rear end is a 9210-GM.


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1970 SS LS-5/M-22 El Camino- Org. Owner-AACA 2016-Senior Grand National Winner---MCACN-GOLD-2013
1970 ( FRAUD) SS 468 Station Wagon - Driver.

Last edited by Robinls5; Jun 2nd, 20 at 8:09 PM.
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post #5 of 18 (permalink) Old Jun 2nd, 20, 8:29 PM
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Re: Kill Stick

Factory driveshaft on the right with 1310 u-joints and a 1310-1350 conversion joint on the rear.

New 3.5” custom length steel driveshaft from Driveshaft Specialist on the left with 1350 Spicer solid body u joints and new trans yoke. $472 shipped to my door.


1972 Chevelle, 454, 200-4r non-lockup, 12 bolt 3.73
1981 Camaro Z28, 355, TH350, 3.73
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post #6 of 18 (permalink) Old Jun 2nd, 20, 9:46 PM
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Re: Kill Stick

Thanks for sharing Tony. Smooth cruising to you sir!

Gene
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post #7 of 18 (permalink) Old Jun 2nd, 20, 11:22 PM
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Bob
 
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Re: Kill Stick

I would guess the old driveshaft above the black one is from a 396 car. It not from a 454 car. The Org. 3-R-454 Shafts had " NO " grease fittings, Solid cross, NO cross drilling.
I just like the look of the old style G.M. driveshafts. Hey now, To each his own. Whatever it takes to make " The wheels go around ".
Bob


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1970 ( FRAUD) SS 468 Station Wagon - Driver.
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post #8 of 18 (permalink) Old Jun 3rd, 20, 12:39 AM
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Re: Kill Stick

I'm with Steve- I opted for a 3 1/2" chrome moly with 1350 joints. It was a 150.00 upgrade in the kit I got from Silver Sport.
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post #9 of 18 (permalink) Old Jun 3rd, 20, 8:28 AM Thread Starter
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Re: Kill Stick

Whatever is CORRECT & SAFE! I'll rely on these experts building mind. They knew exactly what is needed to be built for a 71 and my combo.
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post #10 of 18 (permalink) Old Jun 3rd, 20, 8:44 AM
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Steve
 
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Re: Kill Stick

You would guess wrong.

That driveshaft is from a 307 car.

Thus the requirement for an upgrade to something with beefier u joints to go between my MJ467 and the Moser 12 bolt.

Quote:
Originally Posted by Robinls5 View Post
I would guess the old driveshaft above the black one is from a 396 car. It not from a 454 car. The Org. 3-R-454 Shafts had " NO " grease fittings, Solid cross, NO cross drilling.
I just like the look of the old style G.M. driveshafts. Hey now, To each his own. Whatever it takes to make " The wheels go around ".
Bob

1972 Chevelle, 454, 200-4r non-lockup, 12 bolt 3.73
1981 Camaro Z28, 355, TH350, 3.73
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post #11 of 18 (permalink) Old Jun 3rd, 20, 8:49 AM
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Steve
 
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Re: Kill Stick

Yah, I thought about that - but they said this one was good for an easy 800hp and about 6500-7000 rpm critical speed safely at the length I'm at (3/4" shorter than stock.)

I'm "only" at 538hp right now - if I go above 700hp, I'll be swapping out for a much beefier transmission like a 4L80e or TH400+gear vendors or something, which will require a new driveshaft anyway.

Quote:
Originally Posted by shelteredv View Post
I'm with Steve- I opted for a 3 1/2" chrome moly with 1350 joints. It was a 150.00 upgrade in the kit I got from Silver Sport.

1972 Chevelle, 454, 200-4r non-lockup, 12 bolt 3.73
1981 Camaro Z28, 355, TH350, 3.73
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post #12 of 18 (permalink) Old Jun 3rd, 20, 10:40 AM
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Re: Kill Stick

PIMA (Pain In My A$$) is my car's name. I don't even want to try to list all the part failures it has had. This is the second summer for not running, but it is close to being put back together.

I had a slight higher RPM vibration. This is my second tear down in 5,000 miles, and after replacing/modifying several parts, I noticed the pilot bearing was shot. The transmission kit I got had a roller bearing for a pilot bearing, and there was no bearings left in the pilot. I replaced it with a non-magnetic pilot bushing from National, so we should be good there. My QuickTime bell housing was not centered, so that is probably what took out the pilot. It was .014 TIR and I got it to .006 TIR, so it should be good now.

PIMA is a good name for my car. I do miss driving it, and it'll be running soon...I hope.

'69 Chevelle SS (ON THE ROAD NOW!
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post #13 of 18 (permalink) Old Jun 3rd, 20, 10:56 AM
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Re: Kill Stick

I forgot to mention, after blowing the spider gears in the differential 3 times, I now have a new Moser rear end housing, Eaton TrueTrac differential, Strange 30 spline c-clip axles, and a 3-1/2 inch aluminum driveshaft w/1350 joints.


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'69 Chevelle SS (ON THE ROAD NOW!
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Engine parts: (Heads, cam & lifters from Lewis Racing Engines)
ZZ502 Short block
AFR 305 CNC 106cc Chambers 8002 springs
Bullet HR ADV Dur 295/297 238/242 @ .050 .680/.650-110 LSA-108 ICL Morel lifters
Holley Avenger MPFI
612HP/594TQ
T-56 Magnum trans with hydraulic McLeod RST
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post #14 of 18 (permalink) Old Jun 3rd, 20, 12:55 PM Thread Starter
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Re: Kill Stick

Damn Mark, I am gonna have rename mine. I know I'll use B#t*h. that's it. or is it YOU M^*[email protected] F^*+"R but thats usually when i screwed up or dropped my wrench for fifth time. We should put a small booklet together "Things I,ve called My car"
Tony
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post #15 of 18 (permalink) Old Jun 3rd, 20, 6:58 PM
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Re: Kill Stick

The old 307 driveshafts are not that bad. When I pulled the 307/350T out of my wagon and replaced the 307 with a 468 & a 700R, I cut down the 307 shaft and used it on my wagon. 46--48.000 miles the old shaft And it is still hangin tough.
My wagon is a driver no racing. After running out of Cubic Dollars trying to pick up a tenth or two, I said racing is fun and also VERY expensive. What was the HOT item last year, Well it sucks this year so open your wallet ...Again?
Bob
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1970 ( FRAUD) SS 468 Station Wagon - Driver.
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