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EF diff swap to EL. Now with virbration 

 

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 Post subject: EF diff swap to EL. Now with virbration
Posted: Thu May 21, 2009 5:30 pm 
Stock as a Rock
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Location: perth
WA, Australia

Hi,

Just changed the diff in my ef futura to an el fairmont ghia 3.45 diff. I changed everything over. That is upper and lower control arms and used the el rotors and axles. Pretty much disk to disk unbolt and bolt on swap. I was just wondering if i have missed anything or done something i shouldn't have as i'm getting a weird vibration while decelerating from higher speeds, say 100. Everything is done up tight including tailshaft.

The only thing i can think of is that the watts link between the ef and el are different spec. I used the old ef one which now seems silly but at the time i didnt think would matter. I know the pinion on the diff for the watts link is 20mm lower on the el but i dont think the actual watts link arms changed at all. But whether or not this is what is causing this vibration at deceleration got me stumped.

Any reply would be greatly appreciated.

 

_________________

1995 EF Futura
Port and Polished 94DT Tickford Head - Crow valve springs - 68mm Throttle Body - Wade 1673
4499 Pacemakers - 2.5" exhaust - Ti J3 Chip - 2J1 Techedge Logger -EL Tickford 3.45LSD -
XR low springs - Boge Turbo Shocks - Front DBA slotted Rotors - BA ESS shifter - Shift Kit

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 Post subject: Re: EF diff swap to EL. Now with virbration
Posted: Thu May 21, 2009 5:40 pm 
Getting Side Ways
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Ride: BA on gas. EL on gas. XF on gas.

Location: Greenacres/Adelaide
SA, Australia

Lowers are the same, uppers are different EF to EL, Watts is the same.
But it still sounds like diff angle....

 

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 Post subject: Re: EF diff swap to EL. Now with virbration
Posted: Thu May 21, 2009 5:53 pm 
Stock as a Rock
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hmmm... so should i have changed the upper arms or used the ef ones.

Also i remember seeing there is 3 holes, maybe for adjustment, on the axle where the upper control arm connects to it whereas the ef only has one. Not sure if i have to change that. :S

 

_________________

1995 EF Futura
Port and Polished 94DT Tickford Head - Crow valve springs - 68mm Throttle Body - Wade 1673
4499 Pacemakers - 2.5" exhaust - Ti J3 Chip - 2J1 Techedge Logger -EL Tickford 3.45LSD -
XR low springs - Boge Turbo Shocks - Front DBA slotted Rotors - BA ESS shifter - Shift Kit

Top
 Profile  
 
 
 Post subject: Re: EF diff swap to EL. Now with virbration
Posted: Thu May 21, 2009 8:16 pm 
Stock as a Rock
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Location: perth
WA, Australia

ashcook wrote:
nice signature you have there, took a little while for me to see it


Heheh... Made me laugh so hard when I read it.

Does anybody know exactly what needs to be changed between el and ef or if what I have done is right?

 

_________________

1995 EF Futura
Port and Polished 94DT Tickford Head - Crow valve springs - 68mm Throttle Body - Wade 1673
4499 Pacemakers - 2.5" exhaust - Ti J3 Chip - 2J1 Techedge Logger -EL Tickford 3.45LSD -
XR low springs - Boge Turbo Shocks - Front DBA slotted Rotors - BA ESS shifter - Shift Kit

Top
 Profile  
 
 
 Post subject: Re: EF diff swap to EL. Now with virbration
Posted: Thu May 21, 2009 8:25 pm 
Getting Side Ways
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Age: 45

Posts: 1953

Joined: 1st Feb 2006

Gallery: 25 images

Ride: BA on gas. EL on gas. XF on gas.

Location: Greenacres/Adelaide
SA, Australia

Use the EL uppers. Look under the car and see if the diff angle is inline with the tailshaft.

 

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 Post subject: Re: EF diff swap to EL. Now with virbration
Posted: Fri May 22, 2009 12:56 pm 
Getting Side Ways
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Location: Melbourne
VIC, Australia

undo the tailshaft and rotate it 180 degrees from the pinion flange.
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 Post subject: Re: EF diff swap to EL. Now with virbration
Posted: Fri May 22, 2009 1:47 pm 
Oompa Loompa
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Are the EL upper arms that you used Tickford ones or Std EL ones? And are you running lowered springs?
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 Post subject: Re: EF diff swap to EL. Now with virbration
Posted: Fri May 22, 2009 2:17 pm 
Stock as a Rock
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Posts: 103

Joined: 7th Jul 2008

Location: perth
WA, Australia

TP351 wrote:
Are the EL upper arms that you used Tickford ones or Std EL ones? And are you running lowered springs?


The el upper arms are out of the el fairy ghia so i'm assuming they are tickford ones(maybe wrong on the assumption). I'm using lowered springs out of an xr6.

MadMatt wrote:
Use the EL uppers. Look under the car and see if the diff angle is inline with the tailshaft.


Yeah i will have to check this out properly one the weekend.

eboost wrote:
undo the tailshaft and rotate it 180 degrees from the pinion flange.


i'll also try this. Is it something to do with balance?

ashcook wrote:
I think I've seen on site somewhere before someone having the same issue and it was a matter of changing the position in those 3 mount holes you mentioned.


Yeah i seem to remember something somewhere but i want some confirmation so i dont root it up further. Surely there has to be someone who has done this before.

Thanks for the help so far. Cheers

 

_________________

1995 EF Futura
Port and Polished 94DT Tickford Head - Crow valve springs - 68mm Throttle Body - Wade 1673
4499 Pacemakers - 2.5" exhaust - Ti J3 Chip - 2J1 Techedge Logger -EL Tickford 3.45LSD -
XR low springs - Boge Turbo Shocks - Front DBA slotted Rotors - BA ESS shifter - Shift Kit

Top
 Profile  
 
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