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Old 12-27-2020, 04:19 PM   #101
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Originally Posted by smoothdurban View Post
My counter shaft was loose on my brand new T5 so they do appear to assemble them loose from the factory. I tried Paul's counter shaft retainer and peelable shims so I was able to set the preload correctly but I can't say it made any noticeable difference.

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I switched my poly mount out for a factory rubber one and I can say it did dampen some vibrations but it wasn't nearly as dramatic as the huge damper or Ben's hybrid torque rods.


I like the idea of the counter weight on the rear diff.
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Has anyone mentioned the OEM T5 counterweight that bolts onto the tail housing? I've only ever seen one at a junkyard, and I wish I had grabbed it. It could be interesting to experiment with different weights bolted onto the transmission itself.
Yeah so I was thinking that the dampening should be on the trans itself... It really seems like the source of the vibration. I went with a rubber isolater for the shifter as the bolts can rattle loose like was stated in previous posts.

Ben it seems a number of people have gone with 2 piece driveshafts to help alleviate drive line angle issues. But the vibration still exists.

It's been a while but I think when pinion angle is off its a different vibration that the trans itself. Others can chime in I'll be switching to a getrag in the future and will see how I prefer that.
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Old 12-27-2020, 04:55 PM   #102
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I have one installed. It helped noticeably.

Sent another one to Mike K. Likely we will have to wait until Spring for his veredict.
You should weigh it so we can make our own.
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Old 12-27-2020, 05:01 PM   #103
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It was about 4 lbs of butyl and iron.
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Old 12-27-2020, 05:17 PM   #104
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Huh, I'll have to see if I have that damper weight kicking around still, the trans I grabbed had it.

I'm also using a factory 2pc driveshaft with the dampened rear half. The trans I'm prepping to go into the car now has that machined retainer as well, so we'll see how that all plays out.
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Old 12-30-2020, 06:30 PM   #105
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Just finished up swapping in a two piece driveshaft with the Ford F6ZZ4841BA yoke. Also using a 740 support bearing in my 245 as well. Think I might need a rebalance with the new yoke and a bit of angle tweaking but THE NOISE IS GONE! It's like night and day, trans is a Z spec WC T5 with Paul's counter gear stabilizer plate that I rebuilt this summer.

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Old 12-30-2020, 06:50 PM   #106
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Now the question...was it the retainer, the yoke, or both?

I'm doing just the retainer first, then I'll grab the yoke if it's still bad.
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Old 12-30-2020, 08:18 PM   #107
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Now the question...was it the retainer, the yoke, or both?

I'm doing just the retainer first, then I'll grab the yoke if it's still bad.
Already had the retainer in the trans when I put it in the first time so I don't think that's going to cure the noise alone.
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Old 12-31-2020, 12:07 AM   #108
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Cool, good info, thanks!

Looks like I'm going yard hunting for a yoke now.
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Old 12-31-2020, 12:19 AM   #109
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Is this correct for which models it can be found on?

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Old 12-31-2020, 09:44 AM   #110
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Now the question...was it the retainer, the yoke, or both?

I'm doing just the retainer first, then I'll grab the yoke if it's still bad.
Its definitely the Yoke, it has a built in damper, if you have vibrations. You need a damper to change them. The retainer is a good idea for durability reasons but its not going to change the vibration issues that we see using a t5 gear box behind a b230.
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Old 12-31-2020, 11:18 AM   #111
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That's kinda what I was figuring Ben. The only thing throwing a monkey wrench in that is I've been in a 240, with a T5 and B230, that the trans made NO noise, and it's running the standard V8 yoke, non-damped 240 2pc driveline, Trutrac'd 1031, and a flat flywheel. There's also been a couple that had no issues at all, while most of the rest of us, the noise level varies. I brought up the balancer yoke a while back, just have the V6 one on mine now which has the smaller weight on it, and it made a difference.

Either way, eh, I have a spare T5 now, once I swap the one on the bench into the car, with the nice retainer.
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Old 01-04-2021, 07:31 PM   #112
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You should weigh it so we can make our own.
Sorry havenít been keeping up. Itís out in the garage Iíll weigh it tomorrow.

Yeah may go on earlier but wonít drive again until the thaw.
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Old 01-07-2021, 02:08 AM   #113
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I see in this thread a lot about T5 vibration in 240s. What about in 700s?
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Old 01-07-2021, 09:06 AM   #114
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It's a transmission thing, not a car thing.

This is all very good to know, because I have a T5 that got backbenched due to concern about the vibration/noise.
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Old 01-07-2021, 09:34 AM   #115
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I see in this thread a lot about T5 vibration in 240s. What about in 700s?
Its really all about the engine / trans combo. 4 Cylinders resonate differently than a v8 or v6. This is why you get all the rattles and its why Manufacturers installed dampened slip yokes for different engine / trans packages.
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Old 01-07-2021, 02:44 PM   #116
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Quote:
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Its really all about the engine / trans combo. 4 Cylinders resonate differently than a v8 or v6. This is why you get all the rattles and its why Manufacturers installed dampened slip yokes for different engine / trans packages.
Anyone know how a T5 trans sound behind a Volvo T5?
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Old 01-07-2021, 02:50 PM   #117
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After all of this discussion I'm still puzzled as the transmissions in Ryan Randall's and Chris Miranda's cars are whisper quiet and perfectly smooth despite using non-dampened slip yokes.
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Old 01-07-2021, 03:04 PM   #118
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After all of this discussion I'm still puzzled as the transmissions in Ryan Randall's and Chris Miranda's cars are whisper quiet and perfectly smooth despite using non-dampened slip yokes.
Lots of factors to easily overlook to contribute to that.
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Old 01-07-2021, 03:33 PM   #119
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I'm with you Harald. Multiple engines in Ryan's, years of flat out abuse, poly bushings, you name it, but that thing is silent. My 140, rattles like it's gonna explode, despite fresh bits inside, good fluid, all that jazz.
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Old 01-07-2021, 08:16 PM   #120
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Lots of factors to easily overlook to contribute to that.
Because Porn?
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Old 01-10-2021, 12:00 PM   #121
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I figured I would give this a try simply for fitment.



It fits so perhaps I could try switching back to a different slip yoke to see if it has any effect. With my BFSY installed I didn't notice any difference.





Perhaps it may help others, PN below.

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Old 01-11-2021, 12:11 PM   #122
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Quote:
Originally Posted by smoothdurban View Post
I figured I would give this a try simply for fitment.



It fits so perhaps I could try switching back to a different slip yoke to see if it has any effect. With my BFSY installed I didn't notice any difference.





Perhaps it may help others, PN below.

To refresh my memory, do you still have a vibration with the big slip yoke installed?

You did not notice a difference by adding a damper to the setup with the slip yoke installed?
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Old 01-11-2021, 06:58 PM   #123
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I actually have one of the NVH weights from an aluminum M46, gonna see about putting that on, see what happens. Gotta get the car running first, so maybe this fall. lol
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Old 01-11-2021, 08:04 PM   #124
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Originally Posted by blkaplan View Post
To refresh my memory, do you still have a vibration with the big slip yoke installed?

You did not notice a difference by adding a damper to the setup with the slip yoke installed?
For me, acceleration vibes and coast down droan is gone with the BFSL. Adding the weight didn't make a noticeable difference.

I was mainly curious to see if this would fit and perhaps try it out without the BFSL once the weather clears up here.
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Old 01-12-2021, 12:22 AM   #125
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When I put one of those tailshaft counterweights on earlier this year it narrowed the RPM window the vibes were present in, but wasn't a full solution.

With 2 piece driveshaft and V6 slip yoke FYI
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