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Perrin Differential Cover


elchrispy

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Is anybody here using a Perrin rear differential cover? I have to take mine off to replace my gasket anyways and was considering picking one up. The only problem is that they say it requires some subframe modification. I am a little bit hesitant to pull the trigger on this without knowing exactly how much cutting/massaging will be required. Any input or knowledge is greatly appreciated.

 

For a reference, here is the piece I am talking about:

http://www.maperformance.com/image.php?id=147&type=D

 

Thanks!

2007 Spec.B
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Check NASIOC?
[URL="http://legacygt.com/forums/showthread.php/proper-flip-key-interesti-159894.html"]Flip Key Development Thread[/URL] "Genius may have its limitations, but stupidity is not thus handicapped." - E. Hubbard
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It looks nice but are you looking to rally your spec b anytime soon? Does perrin say that it has any performance avantages other than looking effin sick?

 

The only advantage (which isn't much of one) is that it holds slightly more oil than the stock piece.

 

But yeah, it looks awesome and that's really why I want it haha. The only reason I'm really considering it is because I do already have to remove my cover so it would be convenient to do at the same time.

2007 Spec.B
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Perrin says you have to trim down a few of the fins.
[URL="http://legacygt.com/forums/showthread.php/proper-flip-key-interesti-159894.html"]Flip Key Development Thread[/URL] "Genius may have its limitations, but stupidity is not thus handicapped." - E. Hubbard
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Perrin also says that an angle grinder will fix you up. Grind down a few fins, and grind a little bit of the crossmember and you'll be all set.
[URL="http://legacygt.com/forums/showthread.php/proper-flip-key-interesti-159894.html"]Flip Key Development Thread[/URL] "Genius may have its limitations, but stupidity is not thus handicapped." - E. Hubbard
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Perrin also says that an angle grinder will fix you up. Grind down a few fins, and grind a little bit of the crossmember and you'll be all set.

 

Cool, thanks for the information. Just curious, was this published somewhere or did you ask somebody from Perrin?

2007 Spec.B
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I went to perrin's website and asked "Live Help".

 

:rolleyes:

[URL="http://legacygt.com/forums/showthread.php/proper-flip-key-interesti-159894.html"]Flip Key Development Thread[/URL] "Genius may have its limitations, but stupidity is not thus handicapped." - E. Hubbard
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I went to perrin's website and asked "Live Help".

 

:rolleyes:

 

Haha, I searched so hard everywhere else and never even thought to ask Perrin themselves... lol

 

I just found one on NASIOC for pretty cheap so I might go ahead and do this. Pics to come if it happens.

2007 Spec.B
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Remember that there were R160 and R180 models. You need the R180 one.
[URL="http://legacygt.com/forums/showthread.php/proper-flip-key-interesti-159894.html"]Flip Key Development Thread[/URL] "Genius may have its limitations, but stupidity is not thus handicapped." - E. Hubbard
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I'm just saying, why...

 

If your going to be racing the car around a track for long distances yea, maybe...its your money. Do you know what you have to do to replace the cover ? Theres quite a bit of labor involved, you need to lower the diff from the chassis.

 

When I bought a replacement rear diff for my 05, after I installed it, I found out I could not get the fill plug out. Some monkey over torqued it. I had to remove it from the car, because I couldn't get all the bolts out of the cover with it in the car on the jack.

305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD).  CHECK your oil, these cars use it.

 

Engine Build - Click Here

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I'm just saying, why...

 

If your going to be racing the car around a track for long distances yea, maybe...its your money. Do you know what you have to do to replace the cover ? Theres quite a bit of labor involved, you need to lower the diff from the chassis.

 

When I bought a replacement rear diff for my 05, after I installed it, I found out I could not get the fill plug out. Some monkey over torqued it. I had to remove it from the car, because I couldn't get all the bolts out of the cover with it in the car on the jack.

 

That's part of why I posted this thread, to just see what everybody thought about it.

 

Like I said, I have to replace the differential gasket so the cover has to come off already.

2007 Spec.B
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If you have money burning a hole in your pocket, get it. Just don't expect to notice any difference.
[URL="http://legacygt.com/forums/showthread.php/proper-flip-key-interesti-159894.html"]Flip Key Development Thread[/URL] "Genius may have its limitations, but stupidity is not thus handicapped." - E. Hubbard
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  • 1 month later...
Did you ever get this installed? I'm not looking to install the cover (unless I found one for under $50) but I do need to replace the cover gasket. I failed miserably this weekend trying to lower the diff. I got stuck on the bolts through the bushings on the rear diff carrier. I couldn't for the life of me get them to break free. Not even with heat and 250 ft/lbs impact wrench. If you did get yours done, do you have any tips?
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