WARNING! EVO Front Differential Issue?!

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Oct 21, 2005 | 07:35 AM

#16

Tsurara

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From: MA

Quote:

Originally Posted by joeymia

Are Quaife diffs still a pain in the *** to get? I was thinking of putting one in when i do a clutch swap.

RoadRaceEngineering has 20 in stock

http://www.roadraceengineering.com/evo.htm

P.S. I love you Mike W. and John M. !

Oct 21, 2005 | 08:20 AM

#17

sleet

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From: Ft. Lauderdale

Damn that sucks!

Oct 21, 2005 | 08:21 AM

#18

GEARS

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From: KALAMAZOO

Quote:

Originally Posted by ace33joe

Yeah, I would like to know what are the symptoms of this problem.

The car would act like it doesn't have a limited slip/viscous coupling between the front and rear pinion shafts and the car would easily light up the front tires if you mash the gas in 1st from a 3000rpm roll.

To check and see whether or not your front differential is broke where it plugs into the viscous coupling you needs to:

Have transmission in neutral
Have E-brake on
Raise car up on hoist
Now check and see if you can spin both front wheels easily in the same direction. Make sure you have the car in neutral and the E-brake on or this test won't work.

If the end snout is not broken viscous is working you will be able to spin them but it'll take quite a bit of effort.

If the end snout is broken it'll spin with ease.

Oct 21, 2005 | 08:27 AM

#19

EVIL_EVO_VIII

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From: Lake Mary,FL

Quote:

Originally Posted by GEARS

Hey Jon, whats your opinion on the 05's lsd's? Are they strong as ppl say they are? Ive read somewhere that they are almost as strong as the quaiffe, this true?

Oct 21, 2005 | 08:32 AM

#20

GEARS

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From: KALAMAZOO

Quote:

Originally Posted by EVIL_EVO_VIII

Hey Jon, whats your opinion on the 05's lsd's? Are they strong as ppl say they are? Ive read somewhere that they are almost as strong as the quaiffe, this true?

We haven't seen anyone break them but I'm sure there are some people on here who could break it and rightfully deserve to since they have to...

We offer a 1 year warranty on them and can rebuild the unit for cheap if it ever wears out.

Jon@TRE

Oct 21, 2005 | 08:49 AM

#21

4ringturncoat

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From: MI

How about the 04's? Going Saturday to find out!

Oct 21, 2005 | 09:12 AM

#22

Zeus

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From: Austin, TX

Quote:

Originally Posted by EVIL_EVO_VIII
Hey Jon, whats your opinion on the 05's lsd's? Are they strong as ppl say they are? Ive read somewhere that they are almost as strong as the quaiffe, this true?

Quote:

Originally Posted by GEARS

Jon,

You guys offer the OE 05 LSD's now? I'm not a fan of clutch types in a daily driver, and have not looked to see what type the Ralliart is.

Oct 21, 2005 | 09:21 AM

#23

XxBLACKMAMBAxX

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From: Deadly Viper Assasination Squad

How much do you sell the RalliArt diff for outright without install? I would install it myself, thanks

Oct 21, 2005 | 09:26 AM

#24

marksae

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From: SF, CA

Could this type of failure be induced when launching the car off the apex berms at the track? This would send a shock load down the driveline even though a "drag" launch has not been done. Turn 15's berm at Thunderhill causes my suspension to bottom out if I hit it. It probably sends my front left wheel into the air too.

Oct 21, 2005 | 03:05 PM

#25

joeymia

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From: FL

Quote:

Originally Posted by Tsurara

RoadRaceEngineering has 20 in stock

http://www.roadraceengineering.com/evo.htm

P.S. I love you Mike W. and John M. !

thanks

Oct 21, 2005 | 03:42 PM

#26

ace33joe

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From: Used to be in Nor Cal, now working in Seoul

Thank you for your kind explanation, Jon.

Oct 28, 2005 | 10:57 PM

#27

osunick

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From: Palo Alto, CA

Quote:

Originally Posted by roger smith

Yeah. 05's+ have helical front LSD like the Japanese ones have always had. The quaife is also a helical type LSD I believe.

03, 04 have VCU POS - Viscous coupling unit piece of s'

Nothing wrong durability-wise with a VCU. The VCU is part of the center diff and has nothing to do with the TC problems of the 03's and 04's, which are related to the FRONT diff. The Evos I-VI have gone strong with their VCU units, I highly doubt it's any less durable than the ACD. Porsche and Mercedes have both replacied their complex electronic diffs with VCU's because they're light and durable.