APIKOL rear diff mount installed
you must undo the silver audi crossmember (says 'Germany' in the pic) and unbolt & slide out the diff mount<img src="http://farm3.static.flickr.com/2156/2261567564_2161bc94cd_b.jpg" alt="apikol diff mount" /></a>
stock vs apikol - my stock mount was cracked all the way around in the thin areas. the main rubber "arms" were good tho.
<img src="http://farm3.static.flickr.com/2419/2260772999_bf00b6a40e_b.jpg" alt="stock vs. apikol" /></a>
Driving impression: (quick coffee run)
-wow, shifting has improved. the "thud" is gone and shift action is positive and heel-toe has a satisfying smooth action. took away the play.
-I noticed it goes into reverse much easier now, as does 1st.
- increased low speed noise (1st/2nd) seems to transmit drivetrain nose to the body and noticeable increase in vibration. I can feel it in the pedals and a dash rattle that would occaisionally act up is now almost constantly buzzing.
- it is not bad, so don't read too much into it- but it is an increase in NVH
-i'm not crazy about the additional harshness but the shifting has gotten better.
-If the Apikol has good durability than it will be worth it.
It does make me curious if a new OEM would be better all-around, however, looking at the design of the OEM rubber bushing-I am not confident in it's long term durability.
The tradeoff of more flex for reduced vibs & noise/ to the Apikol's better shift action- that is my assumption here.
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2. there is more drivetrain vibes
I can see where this could be a pre-existing condition and the stiffer mount simply exposes it, where the soft OEM mount insulates it from you.
I cannot say you are wrong, as I do not know if there is some other cause, and it was hidden. Your explaination sounds plausible and possible. I will start inspecting the rest of the drivetrain.
Reading my original post, it makes it sound worse than it really is- the tough part about the internet! the vibes are not severe or even 'bad'- it is simply increased slightly. I cannot guarantee someone would even notice the difference-my g/f didn't.
My car is not raced, I use it as a daily driver and I'm pretty easy on it. With that in mind, take my comments as someone w/ a stock B5 w/ sport suspension & 18's.
If I were tracking it or had it lowered/drove hard, I wouldn't say anything. The performance difference is noticable.
Also, I have only put <-5 miles on it! I have not even gone above 40mph yet!
I am taking a long trip up the coast this weekend so when I get back, I'll give a much better review of it.
If it is not clear, I am happy with the mount so far.
The shift action and elimination of that 'thud' on acceleration/decelleration is a joy.
Heel/toe'ing out of turn and getting on the gas is smooth and seamless- where as before, the slop made the shift more work and the speed change does not feel sloppy.
One more question for you--- how is the urethane holding up? any feedback w/ lots of miles? Thanks.
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