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vibration

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Old 02-21-2009, 05:30 PM
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vibration

ok i just cant win

i just had to pay 190 for a new ptu harness and 100 for a maf since both took a dump

car ran great for a day now i am getting some serious vibrations out of my drive shaft. during acceleration only till 25mph then it goes away.

i have been searching and reading.

it is either my u joints or carrier bearing
i believe you can replace both the carrier bearing and u joints correct?

i really do not have the money for a one piece right now
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Old 02-21-2009, 05:44 PM
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if it came down to it and i absolutly had to buy a new drive shaft which would be better?

http://www.conceptzperformance.com/C..._Type=300&UID=
no shipping or tax if paid in cash

or


http://www.z1motorsports.com/product...oducts_id=1573
290 shipped

Last edited by rtmorgan; 02-21-2009 at 07:17 PM.
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Old 02-21-2009, 05:50 PM
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i bet it's the carrier. it's easy to tell. just grab the ds anywhere and shake it. if it moves any, the carrier is bad. when mine finally went, i could hear it rattle and the car shook terribly. u-joints are more of a vibration. i'm not sure if you can change u-joints on that shaft though. but if i were you, i'd want to look for a used 1 piece. i looked when i was in the market, but i couldn't find one.

anyway, zlover disagrees with me, but i believe that if the carrier bearing goes, the likelyhood that it was caused by a bad u-joint is very likely. not to say that it guarantees that you have a bad u-joint, but it's likely the cause. it was for me anyway. i replaced the carrier then found that i still have a little intermittent shake that i believe is from a u-joint. so for that reason, i suggest a one-piece. this is also the theory that my local z mech supports. he believes it a little more strongly than i do.
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Old 02-21-2009, 06:10 PM
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well it was kinda just all of the sudden this started happening
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Old 02-21-2009, 07:18 PM
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well if you're short on money, i'd go with the cheaper one, cause the more expensive one looks like it's only barely better.
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Old 02-21-2009, 07:36 PM
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yeah thats what in thinking what do you think zlover?
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Old 02-21-2009, 07:41 PM
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well i'm not zlover, but don't forget to check the listed adds on tt.net.
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Old 02-22-2009, 12:14 AM
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300zxclub has group buy on AMZ aluminun drive shafts until the end of the month.

also, i'm pretty sure Z1 sells PTU harnesses for cheaper than 190.
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Old 02-22-2009, 08:38 AM
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yeah, i got my new ptu and the harness for $200 from the dealer.
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Old 02-22-2009, 09:09 AM
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ok crawled under the car today and pushed up on the drive shaft and it is definatly the center support shaft bearing. i also noticed a little grease with dirt on it on my diffy side u-joint.
i think if i spend the money to fix the bearing an u joint will go after and i will need a new shaft any ways so it looks like i will probally just end up getting a one piece and eliminating the bearing all together and free up a few horseys.

ohh btw is the one piece really that much of a difference in feel preformance etc.?
if it that noticeable?
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Old 02-22-2009, 01:36 PM
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i've heard many times that it wasn't noticeable. bardabe said his N/A with a light flywheel and one-piece was barely any different.
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Old 02-22-2009, 01:45 PM
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i didnt think it would be.

i think i am going to go with the one at coz.
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Old 02-22-2009, 03:57 PM
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lol ZLovers busy eating B-day cake, no time for Z cars, CAKE!!!
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Old 02-23-2009, 07:33 AM
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z1 motorsports.

did this swap a few years ago when mine when bad and never looked back.
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Old 02-23-2009, 07:40 AM
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thanks for the imput doms but i live like 30min from coz so no shipping for me and if i have cash no tax either so i am going to have to go with the one at coz (im short on cash due to the ptu incident and maf)
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Old 02-23-2009, 07:43 AM
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its cheaper to get the one a coz

and he seems to be a good guy and stands behind his products
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Old 02-23-2009, 07:53 AM
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Yeah do what you gotta do.

I never looked into the COZ driveshafts because I had heard so many good things about z1, and the guys were awesome to deal with.

The shipping is booty, and i think there actually like 50 bucks cheaper when I got mine.

Good luck with it, its a pretty easy swap, should take less then an hour if you know what youre doing.
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Old 02-23-2009, 08:03 AM
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yeah i took mine out when doing my lutch so i know how it is under there just not im the mood to do it i have been trying all week to get a 79 benz going for my brother. the damn thing has so many leaks.

H.O.A doesnt like leaks lol
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Old 02-23-2009, 10:46 AM
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did you look into the group buy ds? that might be a very good deal.
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Old 02-23-2009, 11:28 PM
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i already mentioned it to him once. AMZ aluminum (current price cheaper than a steel one)only 20 bucks for shipping as well.
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Old 02-24-2009, 05:16 PM
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Center Support Bearings suck....I imagine there's a little less drivetrain loss with a 1 piece driveshaft than with a 2 piece. That's why I'm going to upgrade.
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Old 02-24-2009, 05:45 PM
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^^^ ^^^ yeah that's why i mentioned it. cause you did! lol
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Old 02-25-2009, 05:43 AM
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Dropped a one piece in a few months back cause my center dealy went to **** on me. Had a little vibration at 75+ witht eh new one for a month or so but it smoothed itself out gradually. It's pretty close to perfect now, only starts to vibrate again up around 105.
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Old 02-25-2009, 09:04 AM
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new one is in!!
no vibration up to 100 so looking good
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Old 02-25-2009, 10:33 AM
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you got a one piece in already? i guess you picked it up? well that's cool. any difference in power?
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