C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Modify Slip Yoke for D44 swap.

Thread Tools
 
Search this Thread
 
Old Apr 14, 2012 | 08:52 PM
  #1  
87stocker's Avatar
87stocker
Thread Starter
Racer
 
Joined: Aug 2007
Posts: 305
Likes: 1
From: DRAYTON VALLEY ALBERTA
Default Modify Slip Yoke for D44 swap.

Is it an option to simply shorten the yoke so the drive shaft will have some slip to it still. Ive heard of people having 1/8" after its in but I dont. I would rather not pay to get my shaft shortened and rebalanced. If I look at my yoke and where the original seal groove is, I think I can simply shorten the yoke to allow the slip to have the factory allowance. Im only talking 1/4".
Reply
Old Apr 14, 2012 | 09:02 PM
  #2  
James93LT1's Avatar
James93LT1
Drifting
Veteran: Air Force
Veteran: National Guard
20 Year Member
 
Joined: Oct 2004
Posts: 1,477
Likes: 80
From: Hawaii
Default

Are you using a auto (D36) drive shaft? Manual (D44) has a shorter drive shaft due to D44s longer pinion snout.
Reply
Old Apr 14, 2012 | 09:09 PM
  #3  
87stocker's Avatar
87stocker
Thread Starter
Racer
 
Joined: Aug 2007
Posts: 305
Likes: 1
From: DRAYTON VALLEY ALBERTA
Default

Yes I am using an auto shaft. I am aware of the shorter manual shaft, but here in this part of the world there isnt access to shorter ones, any cheaper than paying for the shorten and rebalance.

Just a tech question that can hopefully help everyone else out in the future.
Reply
Old Apr 14, 2012 | 09:11 PM
  #4  
rodj's Avatar
rodj
Le Mans Master
25 Year Member
 
Joined: Aug 2000
Posts: 8,838
Likes: 31
From: Australia
Default

Originally Posted by 1987stocker
Is it an option to simply shorten the yoke so the drive shaft will have some slip to it still..
Do you have no freeplay at all ?

Joby puts his D36 DS back in with no mods
http://www.joby.se/corvette/mods/2001-0X11_diff/
Reply
Old Apr 14, 2012 | 09:23 PM
  #5  
87stocker's Avatar
87stocker
Thread Starter
Racer
 
Joined: Aug 2007
Posts: 305
Likes: 1
From: DRAYTON VALLEY ALBERTA
Default

None at all. Yah I read that link in depth. Im just wondering of yoke modification is a good option. Ive read of some doin it but is there any down side to it. I've heard of some removing splines from the inside so it slips in further. And also the way im suggesting.
Reply
Old Apr 14, 2012 | 10:06 PM
  #6  
87stocker's Avatar
87stocker
Thread Starter
Racer
 
Joined: Aug 2007
Posts: 305
Likes: 1
From: DRAYTON VALLEY ALBERTA
Default

Ttt
Reply
Old Apr 14, 2012 | 10:37 PM
  #7  
James93LT1's Avatar
James93LT1
Drifting
Veteran: Air Force
Veteran: National Guard
20 Year Member
 
Joined: Oct 2004
Posts: 1,477
Likes: 80
From: Hawaii
Default

http://forums.corvetteforum.com/c4-p...riveshaft.html
Reply
Old Apr 14, 2012 | 10:47 PM
  #8  
87stocker's Avatar
87stocker
Thread Starter
Racer
 
Joined: Aug 2007
Posts: 305
Likes: 1
From: DRAYTON VALLEY ALBERTA
Default

Good price indeed and thanks for the link. However I have access to a machine shop a welding shop and I have many tools myself. I'm looking for a fix from home or close to home. I like saying I did that.

Not being rude but I just need an answe based on the question I asked. Can I or can't I do this. What are the downsides and upsides to this method.

Thanks again for the replys so far and to come.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Apr 15, 2012 | 12:46 AM
  #9  
87stocker's Avatar
87stocker
Thread Starter
Racer
 
Joined: Aug 2007
Posts: 305
Likes: 1
From: DRAYTON VALLEY ALBERTA
Default

My yoke is bottoming out" spline on spline" inside the transmission. There is a little over 1/2" of slip yoke still visible outside still when installed. So if I remove some spline so I can use that 1/2" of of slip yoke, will that work? I know it's hard to visualize. But I'm sure someone can picture it. "freeplay" no I don't. But I do have in-used slip yoke, but spline on spline will not allow it. I hope this is clearer.
Reply
Old Apr 15, 2012 | 12:55 AM
  #10  
WVZR-1's Avatar
WVZR-1
Team Owner
20 Year Member
Veteran: Army
Active Streak: 30 Days
Liked
 
Joined: Sep 2003
Posts: 25,394
Likes: 2,741
Default

Originally Posted by 1987stocker
My yoke is bottoming out" spline on spline" inside the transmission. There is a little over 1/2" of slip yoke still visible outside still when installed. So if I remove some spline so I can use that 1/2" of of slip yoke, will that work? I know it's hard to visualize. But I'm sure someone can picture it. "freeplay" no I don't. But I do have in-used slip yoke, but spline on spline will not allow it. I hope this is clearer.
I had deleted the post before I saw your response here!

If you've excess of 1/2" you could "possibly" shorten the yoke UNLESS it's "bottoming" on the plug in the end of the slip yoke! If shortening the yoke puts the output shaft on the plug then it's a "no go"! You need substantial clearance end of output shaft to the plug.

Now if you your "spline on spline" comment means that the there's insufficient spline length on the output shaft for the yoke to "slip further" and you're intentions were to remove splines internally I'd think it "ill advised"!

You still didn't mention where "home" is!!

Last edited by WVZR-1; Apr 15, 2012 at 01:04 AM.
Reply
Old Apr 15, 2012 | 01:04 AM
  #11  
87stocker's Avatar
87stocker
Thread Starter
Racer
 
Joined: Aug 2007
Posts: 305
Likes: 1
From: DRAYTON VALLEY ALBERTA
Default

Originally Posted by WVZR-1
I had deleted the post before I saw your response here!

If you've excess of 1/2" you could "possibly" shorten the yoke UNLESS it's "bottoming" on the plug in the end of the slip yoke! If shortening the yoke puts the output shaft on the plug then it's a "no go"! You need substantial clearance end of output shaft to the plug.

You still didn't mention where "home" is!!
Thanks. That makes sense. Home is Drayton valley Alberta Canada.
Reply
Old Apr 15, 2012 | 01:18 AM
  #12  
WVZR-1's Avatar
WVZR-1
Team Owner
20 Year Member
Veteran: Army
Active Streak: 30 Days
Liked
 
Joined: Sep 2003
Posts: 25,394
Likes: 2,741
Default

Originally Posted by 1987stocker
Thanks. That makes sense. Home is Drayton valley Alberta Canada.


I believe I'd approach "the fix" this way, buy an inexpensive used steel tubed drive-shaft that uses 1310 joints and have it shortened to the correct length or have a steel tubed drive-shaft built using new components.
Reply
Old Apr 15, 2012 | 01:33 AM
  #13  
87stocker's Avatar
87stocker
Thread Starter
Racer
 
Joined: Aug 2007
Posts: 305
Likes: 1
From: DRAYTON VALLEY ALBERTA
Default

Originally Posted by WVZR-1
I believe I'd approach "the fix" this way, buy an inexpensive used steel tubed drive-shaft that uses 1310 joints and have it shortened to the correct length or have a steel tubed drive-shaft built using new components.
Thanks for all the advise, sorry for the confusion. I think I'll measure some things with regards to the yoke. And if I decide that can't be done then I will get my factory aluminum shaft shortened and rebalanced.

How much play is needed in that slip yoke. Can I run with no play, like I have currently. Or do I need some?
Reply
Old Apr 15, 2012 | 01:45 AM
  #14  
WVZR-1's Avatar
WVZR-1
Team Owner
20 Year Member
Veteran: Army
Active Streak: 30 Days
Liked
 
Joined: Sep 2003
Posts: 25,394
Likes: 2,741
Default

Originally Posted by 1987stocker
Thanks for all the advise, sorry for the confusion. I think I'll measure some things with regards to the yoke. And if I decide that can't be done then I will get my factory aluminum shaft shortened and rebalanced.

How much play is needed in that slip yoke. Can I run with no play, like I have currently. Or do I need some?
You need to remove I believe something near 1" on an aluminum shaft to be able to weld a "NEW" aluminum end-yoke to it. The end-yoke needs to be new! The new/used steel tube I believe might be less expensive!

You might make "an offer" to GSDave for his. That might be the "least" expensive option! Buy his, 2 u-joints and re-balance!
Reply
Old Apr 15, 2012 | 02:14 AM
  #15  
87stocker's Avatar
87stocker
Thread Starter
Racer
 
Joined: Aug 2007
Posts: 305
Likes: 1
From: DRAYTON VALLEY ALBERTA
Default

Originally Posted by WVZR-1
You need to remove I believe something near 1" on an aluminum shaft to be able to weld a "NEW" aluminum end-yoke to it. The end-yoke needs to be new! The new/used steel tube I believe might be less expensive!

You might make "an offer" to GSDave for his. That might be the "least" expensive option! Buy his, 2 u-joints and re-balance!
I do beleive I mentioned the fact that it was aluminum when I talked to my machine shop here. They did not mention anything about length of material needing to be removed. Or anything about using a new end. But I will check Monday.

Thanks again.
Reply
Old Apr 15, 2012 | 05:40 PM
  #16  
87stocker's Avatar
87stocker
Thread Starter
Racer
 
Joined: Aug 2007
Posts: 305
Likes: 1
From: DRAYTON VALLEY ALBERTA
Default Yes it works.

I tried it today. I put a glob of grease on the output shaft about 3/4" tall and slid the shaft in to see if it hit and it didnt. I have pretty steady hand with a die grinder. I cut it near perfect and cleaned the rest up with a file. I polished the old unused surface rusty area up with some scotchbrite and hit the whole thing with a 1200 grit and polishing compound to get it perfect. I took probably 7/16" off total and now with the transmission at proper height I have enough play to push the shaft forward and slip it out of the rear yoke. Now anyone doing this can do it without buying a 6sp shaft or getting their A4 shaft shortened. It Cost me time. And now its another thing I can say I did myself.



Reply

Get notified of new replies

To Modify Slip Yoke for D44 swap.





All times are GMT -4. The time now is 04:32 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE