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  •  » FYI Ford, Classic Mustang Tech Discussion
  •  » neverending surprise on driveshaft and slip yoke

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    11/07/2017 5:06 AM  #1

    Alessandro
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    From: Modena -Italy
    Registered: 7/08/2016
    Posts: 707

    neverending surprise on driveshaft and slip yoke

    Hi guys , 
    this t5 swap in my car is becoming a neverending story .
    As my driveshaft was  too old with little u joints i decided to buy new with right slip yoke and correct u joint.
    today i set it up and i cant reallize how can work with so short distance from end of slip yoke and transmission.
    wheels are totally extended and travel will be short when i will lift down.
    more and more when the rear will bounce and require 1 inch of freeplay 
    i cant understand if i got to short an axle that is made for t5 swap ...
    this pics was taken with suspended wheels -----------------  suggestion welcome ! 

     

    11/07/2017 8:18 AM  #2

    Michael H.
    I FYI 24-7

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    From: Laurel, MS
    Registered: 4/01/2013
    Posts: 869

    Re: neverending surprise on driveshaft and slip yoke

    I think that looks fine.  I've always been told as long as you had at least 1 inch of free play you were ok, and it looks like you have 1.5 inches of free play.

     

    11/07/2017 10:09 AM  #3

    Alessandro
    I FYI 24-7

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    From: Modena -Italy
    Registered: 7/08/2016
    Posts: 707

    Re: neverending surprise on driveshaft and slip yoke

    Michael H. wrote:

    I think that looks fine.  I've always been told as long as you had at least 1 inch of free play you were ok, and it looks like you have 1.5 inches of free play.

    when car will sit down distance will be short  and more when bouncing .
    when i try without rear spring and differential at max top  the slip will go in  much more than 1.5 inch 

    hope will gone right , in other case i will broke the tail trans 

       •Thread Starter
     

    11/07/2017 10:17 AM  #4

    BillyC
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    From: Chesapeake, Va.
    Registered: 4/02/2013
    Posts: 965

    Re: neverending surprise on driveshaft and slip yoke

    When I had my shaft shorten the guy that did it told me to measure the distance between the yokes with the car on the wheels then add 3/4". That's what I did and it works fine. Look at it this way, if anything yours might be to long, so you can shorten it if need be. Better than being to short.

    "anyone that stops learning is old, whether at twenty or eighty"Henry Ford
     

    11/07/2017 1:19 PM  #5

    Michael H.
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    From: Laurel, MS
    Registered: 4/01/2013
    Posts: 869

    Re: neverending surprise on driveshaft and slip yoke

    BillyC wrote:

    When I had my shaft shorten the guy that did it told me to measure the distance between the yokes with the car on the wheels then add 3/4". That's what I did and it works fine. Look at it this way, if anything yours might be to long, so you can shorten it if need be. Better than being to short.

    I agree.  With the weight of the car on the rear tires I have slightly less than 1 inch of clearance and mine is fine.
     

     

    11/07/2017 1:55 PM  #6

    Rudi
    Senior 24-7 FYI Addict

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    From: Stuck in the 50's Welland Ca
    Registered: 4/01/2013
    Posts: 3,774

    Re: neverending surprise on driveshaft and slip yoke

    Do you have the engine in yet?

    Good work ain't cheap, Cheap work ain't good!   Simple Man
     

    11/07/2017 5:20 PM  #7

    Alessandro
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    From: Modena -Italy
    Registered: 7/08/2016
    Posts: 707

    Re: neverending surprise on driveshaft and slip yoke

    Rudi wrote:

    Do you have the engine in yet?

     
    Yes ,  the engine is in . .

       •Thread Starter
     

    11/07/2017 6:25 PM  #8

    BillyC
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    From: Chesapeake, Va.
    Registered: 4/02/2013
    Posts: 965

    Re: neverending surprise on driveshaft and slip yoke

    BillyC wrote:

    When I had my shaft shorten the guy that did it told me to measure the distance between the yokes with the car on the wheels then add 3/4". That's what I did and it works fine. Look at it this way, if anything yours might be to long, so you can shorten it if need be. Better than being to short.

     
    CORRECTION! I meant he I'd to subtract 3/4" from the yoke to yoke measurement. Sorry.

    "anyone that stops learning is old, whether at twenty or eighty"Henry Ford
     

    11/07/2017 7:25 PM  #9

    MS
    Forum Originator

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    From: Canyon Lake, Texas
    Registered: 1/24/2013
    Posts: 11,716

    Re: neverending surprise on driveshaft and slip yoke

    IF the weight of the car was on the rear wheels, that gap looks about right.

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
     

    11/07/2017 9:03 PM  #10

    70 Coupe
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    From: Nebraska
    Registered: 2/12/2017
    Posts: 295

    Re: neverending surprise on driveshaft and slip yoke

    From what I have researched, I found that with loaded suspension at most you would need is 3/4", unless you have very soft suspension or are driving the vehicle extremely hard.
     

     

     

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