Need another inch............ - Chevelle Tech
Performance Our High Performance area

 9Likes
Reply
 
LinkBack Thread Tools Search this Thread Display Modes
post #1 of 48 (permalink) Old Apr 25th, 17, 7:31 AM Thread Starter
Lifetime Premium Member
Bob
 
Join Date: Jul 2012
Location: Middle River, MD
Posts: 4,574
Question Need another inch............

No...that's NOT what she said last night...

I had a driveshaft made 2 years ago, after the stocker exploded through the traps at the track...

Ever since, it's had a mild vibration.
I "assumed" that I had simply hurt something else, and just lived with it...

Long story short....

Spline engagement at transmission yoke is barely over an inch, taking into consideration the shaft's length in regards to the seal...and has 1-5/8" of travel between where it is at ride height, and where it is when fully inserted onto the output shaft.

So, I think I'm about an inch short on total length, namely output shaft spline engagement ???

It doesn't even appear to be fully inside of the tailshaft housing bushing...

I have 2 options, I THINK....

One is to have/buy/make a 1" longer slip yoke, which is obviously the cheapest "fix"...

OR...

Another custom built driveshaft...

Has anyone here been in this predicament?

My yoke's length (just the part that slides through seal) is roughly 3-5/8", but I have seen one, while searching, that is 4-5/8"

Would that safely CURE the problem of my total length of driveshaft being 1 inch short?

1971 Chevelle SS "439" 2.1 tons of fun...
11.31@117 w/4.10's, 4200+ stall, QFT SS-830 carb
11.72@115 w/3.90's, 3300 stall, and Fitech GoEFI4
11.51@116 w/3.90's, 3300 stall, and Holley Sniper EFI
11.xx@??? w/3.90's, 4500 stall, and Holley Sniper EFI
rel3rd is offline  
Sponsored Links
Advertisement
 
post #2 of 48 (permalink) Old Apr 25th, 17, 9:02 AM
Lifetime Premium Member
Cory
 
Join Date: Mar 2011
Location: Wimberley, TX (SW of Austin)
Posts: 3,032
Re: Need another inch............

Seems to me that if you have been racing with the "short" driveshaft as it is that the longer slip yoke would be a logical improvement.
OTH, since you already had a driveshaft explode on ya - you know the correct fix..

'66 SS 396 #'s match/ POP - Aztec Bronze / Bronze Interior
'66 Malibu 454 Cortez Silver / Maroon Interior
'37 Chevy Coupe 235 Straight 6 - Cabana Cream`
'55 Chevy Gasser - 427, 4 speed
'72 Cutlass Supreme - Gold/White
dream66 is offline  
post #3 of 48 (permalink) Old Apr 25th, 17, 9:35 AM Thread Starter
Lifetime Premium Member
Bob
 
Join Date: Jul 2012
Location: Middle River, MD
Posts: 4,574
Re: Need another inch............

Quote:
Originally Posted by dream66 View Post
Seems to me that if you have been racing with the "short" driveshaft as it is that the longer slip yoke would be a logical improvement.
OTH, since you already had a driveshaft explode on ya - you know the correct fix..
It's actually been amazingly smooth, considering it has been this way since (I just checked) July of 2014...

I'm leaning towards a new yoke, because there never seemed to be any problem, aside from a mild vibration...I should have taken a quick video of the movement it has, when all bolted up and car on a drive-on lift...

1971 Chevelle SS "439" 2.1 tons of fun...
11.31@117 w/4.10's, 4200+ stall, QFT SS-830 carb
11.72@115 w/3.90's, 3300 stall, and Fitech GoEFI4
11.51@116 w/3.90's, 3300 stall, and Holley Sniper EFI
11.xx@??? w/3.90's, 4500 stall, and Holley Sniper EFI
rel3rd is offline  
 
post #4 of 48 (permalink) Old Apr 25th, 17, 10:00 AM
Lifetime Premium Member
Cory
 
Join Date: Mar 2011
Location: Wimberley, TX (SW of Austin)
Posts: 3,032
Re: Need another inch............

Unrelated question:

Notice from your signature that you once used a QFT SS-830. Do you have that carb available for sale?

'66 SS 396 #'s match/ POP - Aztec Bronze / Bronze Interior
'66 Malibu 454 Cortez Silver / Maroon Interior
'37 Chevy Coupe 235 Straight 6 - Cabana Cream`
'55 Chevy Gasser - 427, 4 speed
'72 Cutlass Supreme - Gold/White
dream66 is offline  
post #5 of 48 (permalink) Old Apr 25th, 17, 10:09 AM Thread Starter
Lifetime Premium Member
Bob
 
Join Date: Jul 2012
Location: Middle River, MD
Posts: 4,574
Re: Need another inch............

Quote:
Originally Posted by dream66 View Post
Unrelated question:

Notice from your signature that you once used a QFT SS-830. Do you have that carb available for sale?
Sorry, I don't. It's still in the Team Chevelle family, but was sold at least a year ago.

1971 Chevelle SS "439" 2.1 tons of fun...
11.31@117 w/4.10's, 4200+ stall, QFT SS-830 carb
11.72@115 w/3.90's, 3300 stall, and Fitech GoEFI4
11.51@116 w/3.90's, 3300 stall, and Holley Sniper EFI
11.xx@??? w/3.90's, 4500 stall, and Holley Sniper EFI
rel3rd is offline  
post #6 of 48 (permalink) Old Apr 25th, 17, 10:11 AM
Senior Tech Team
Vince
 
Join Date: Sep 2006
Location: Los Lunas, NM
Posts: 7,547
Re: Need another inch............

Quote:
Originally Posted by rel3rd View Post
It's actually been amazingly smooth, considering it has been this way since (I just checked) July of 2014...

I'm leaning towards a new yoke, because there never seemed to be any problem, aside from a mild vibration...I should have taken a quick video of the movement it has, when all bolted up and car on a drive-on lift...
have a new driveshaft and yoke and ujoints fabbed up and balanced
then you will be sure that it is correct
rel3rd likes this.
VinceS427bb is offline  
post #7 of 48 (permalink) Old Apr 25th, 17, 1:39 PM
Lifetime Premium Member
Marcus
 
Join Date: Sep 2005
Location: Sweden
Posts: 4,890
Garage
Re: Need another inch............

I had same problems. I bought a longer MW rear end yoke.
12 bolt yoke

Chevelle Malibu ss 64
489 BB with parts from Lewis racing
Alumitech radiator with dual spals
Th 400 Edge 9.5" converter
12 bolt Eaton posi Us gear 3.31 Toms KA 33 splines axles
Malibu ss 64 is online now  
post #8 of 48 (permalink) Old Apr 25th, 17, 2:01 PM Thread Starter
Lifetime Premium Member
Bob
 
Join Date: Jul 2012
Location: Middle River, MD
Posts: 4,574
Re: Need another inch............

Quote:
Originally Posted by Malibu ss 64 View Post
I had same problems. I bought a longer MW rear end yoke.
12 bolt yoke
Wow. Never even knew that was an option.

EDIT: Just realiized I have 1330 u-joints, which looks like a dead end at Mark Williams

1971 Chevelle SS "439" 2.1 tons of fun...
11.31@117 w/4.10's, 4200+ stall, QFT SS-830 carb
11.72@115 w/3.90's, 3300 stall, and Fitech GoEFI4
11.51@116 w/3.90's, 3300 stall, and Holley Sniper EFI
11.xx@??? w/3.90's, 4500 stall, and Holley Sniper EFI

Last edited by rel3rd; Apr 25th, 17 at 2:21 PM.
rel3rd is offline  
post #9 of 48 (permalink) Old Apr 25th, 17, 2:40 PM
Lifetime Premium Member
Marcus
 
Join Date: Sep 2005
Location: Sweden
Posts: 4,890
Garage
Re: Need another inch............

Quote:
Originally Posted by rel3rd View Post
Wow. Never even knew that was an option.

EDIT: Just realiized I have 1330 u-joints, which looks like a dead end at Mark Williams
Bummer! Yes only 1350. You could always use a conversion u-joint but maybe its cheaper and easier to get a longer slip yoke. That was my original plan before I found the thread with the longer MW yoke.

Chevelle Malibu ss 64
489 BB with parts from Lewis racing
Alumitech radiator with dual spals
Th 400 Edge 9.5" converter
12 bolt Eaton posi Us gear 3.31 Toms KA 33 splines axles
Malibu ss 64 is online now  
post #10 of 48 (permalink) Old Apr 25th, 17, 4:05 PM
Tech Team
Jack
 
Join Date: Apr 2011
Location: S/E Pa
Posts: 193
Re: Need another inch............

Call Denny's driveshaft and order a new driveshaft:
Denny's Driveshafts
1189 Military Road
Kenmore, New York 14217
800-955-1872
427L88 likes this.

Matthew 22: 37-39
R.I.P. Mike Romeo
http://i5.photobucket.com/albums/y19...T/IMG_3006.jpg
DragRac69 is offline  
post #11 of 48 (permalink) Old Apr 25th, 17, 5:57 PM Thread Starter
Lifetime Premium Member
Bob
 
Join Date: Jul 2012
Location: Middle River, MD
Posts: 4,574
Re: Need another inch............

I believe their website said they were 4-6 weeks behind? I can't wait that long....

In other news, I pulled the tailshaft housing off to check the bushing, and the egg shaped output shaft bushing fell out with it....now I get to yank the old Turbo 400 out once again...

Stopped at my transmission guys shop and he said it's an easy fix, but tranny has to be completely disassembled to replace it....

I have a new Spicer 1 inch longer yoke coming. That will put the yoke fully engaged into the tailshaft housing bushing, but not bottomed out.

Looks like I will still be back together and able to make the Outlaw Streetcar Shootout, so I may also swap in a looser converter...while it's apart again....

1971 Chevelle SS "439" 2.1 tons of fun...
11.31@117 w/4.10's, 4200+ stall, QFT SS-830 carb
11.72@115 w/3.90's, 3300 stall, and Fitech GoEFI4
11.51@116 w/3.90's, 3300 stall, and Holley Sniper EFI
11.xx@??? w/3.90's, 4500 stall, and Holley Sniper EFI
rel3rd is offline  
post #12 of 48 (permalink) Old Apr 25th, 17, 6:51 PM
Team Member
George
 
Join Date: Feb 2010
Location: Upper Sandusky, Ohio
Posts: 1,604
Re: Need another inch............

I got my Strange driveshaft thru Summit...had it in about a week. I was sweating the measurement thing till it was installed and sitting on the ground....my measuring skills are not good most times.

My '71 Malibu:
3665#
383, 11.7:1, Profiler 213 heads/ BMP Motown intake,

300/304 638/612 111lsa hyd roller, QFT 1050-an

Pertronix ignition, 1-3/4 to 1-7/8 headers, 3" exhaust

TH350 PTC 10" converter

12 bolt posi, 3.90 gears, MT ET S/S 275/60/15

355 times-12.70@106
125 shot-11.85@112
Geo71 is offline  
post #13 of 48 (permalink) Old Apr 25th, 17, 7:05 PM Thread Starter
Lifetime Premium Member
Bob
 
Join Date: Jul 2012
Location: Middle River, MD
Posts: 4,574
Re: Need another inch............

Well I did order my new converter...

1971 Chevelle SS "439" 2.1 tons of fun...
11.31@117 w/4.10's, 4200+ stall, QFT SS-830 carb
11.72@115 w/3.90's, 3300 stall, and Fitech GoEFI4
11.51@116 w/3.90's, 3300 stall, and Holley Sniper EFI
11.xx@??? w/3.90's, 4500 stall, and Holley Sniper EFI
rel3rd is offline  
post #14 of 48 (permalink) Old Apr 25th, 17, 7:31 PM
Lifetime Premium Member
Doug
 
Join Date: Jul 2002
Location: Md. US
Posts: 4,390
Re: Need another inch............

Bob,I might have mentioned this before,but have you ever had any dealings with Ron Hash?He's the driveshaft guy right across from Md Performance,called Perry Hall Power Equip.Ron is a little quirkey,but no one knows drivelines like him.He would be a good guy to talk to about drive line issues.

70 SS 454 LS-5 M-22 Bornwith Drivetrain-Sold New Baldwin Chevrolet
72 SS 454 El Camino W Code-427 4spd.
60',1.46, 6.63@103.59 10.45@128.1
My Showroom
Elky at Cecil https://www.youtube.com/watch?v=MQuBitMOA5w
Chevelle Resto Pics http://www.chevelles.com/forums/35-r...tion-pics.html
DougA is offline  
post #15 of 48 (permalink) Old Apr 25th, 17, 7:40 PM Thread Starter
Lifetime Premium Member
Bob
 
Join Date: Jul 2012
Location: Middle River, MD
Posts: 4,574
Re: Need another inch............

Quote:
Originally Posted by DougA View Post
Bob,I might have mentioned this before,but have you ever had any dealings with Ron Hash?He's the driveshaft guy right across from Md Performance,called Perry Hall Power Equip.Ron is a little quirkey,but no one knows drivelines like him.He would be a good guy to talk to about drive line issues.
Doug, he's more abrasive than my ex wife, lol. I drove right by his shop, on the way to Moxley's to have this driveshaft made.

1971 Chevelle SS "439" 2.1 tons of fun...
11.31@117 w/4.10's, 4200+ stall, QFT SS-830 carb
11.72@115 w/3.90's, 3300 stall, and Fitech GoEFI4
11.51@116 w/3.90's, 3300 stall, and Holley Sniper EFI
11.xx@??? w/3.90's, 4500 stall, and Holley Sniper EFI
rel3rd is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Chevelle Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address. Note, you will be sent a confirmation request to this address.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools Search this Thread
Show Printable Version Show Printable Version
Email this Page Email this Page
Search this Thread:

Advanced Search
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome