Whiteline Trans Mount Bushing - Mustang Evolution

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Old 03-22-2015, 10:58 AM   #1
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Whiteline Trans Mount Bushing

Wish I could say this was even remotely interesting but it literally took me longer to put the car on the lift than it did to put the bushing in.....







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Old 03-22-2015, 11:47 AM   #2
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How does it feel? I've been looking at these.
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Old 03-22-2015, 11:59 AM   #3
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It's raining right now so I haven't gotten to really smash on it yet, but initially it feels better gear to gear, mainly 3rd and 5th.

There is definitely an increase in vibration while accelerating. Not obnoxious and it's not anything you feel in the shifter, but you definitely get some harmonics in the car. You can mostly feel it in the floorboard.
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Old 03-22-2015, 12:01 PM   #4
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As am I would like feed back THANKS!!!!
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Old 03-22-2015, 12:22 PM   #5
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Going into 3rd feels a lot crisper. It's too wet out to really stay in it, but I banged 1st - 3rd and it doesn't seem like you're "feeling" for 3rd gear now.
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Old 03-22-2015, 12:49 PM   #6
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I'm gonna put the car back on the lift, pull the bushing out and drill a hole in the center and see if takes care of that little bit of vibration. Right now you notice it from approx 2500 RPM's to 3500.
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Old 03-22-2015, 01:50 PM   #7
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Instead of just drilling a hole through it, what I decided to do was put it in the mill and and take some material out of the center section. It was .350" thick down the center channel and this is the area that has the only hard contact with the actual trans mount.

Now, I had to hand jam this through the mill, there was no way to hold it securely. It's too soft to clamp down on and clamping it from one side simply distorted it. So, I had to hand feed it and took .010" off at a time so the face mill didn't yank it out of my hand. DO NOT DO IT THIS WAY IF YOU HAVE AN OPTION! It is NOT safe to do!

Anyways, I took .100" off the center section to try and put more load onto the softer areas of the mount. We'll see how it does.....







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Old 03-22-2015, 01:50 PM   #8
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^i was curious about that. Some people had mentioned the 2" hole saw trick. But some said they didn't do it and the vibrations eventually went away
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Old 03-22-2015, 02:17 PM   #9
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That made a HUGE improvement. There is no noticeable change in harmonics or vibration throughout the RPM range now.

I smashed on it through 4th gear and it was still smooth through the gears. I intentionally knocked the tires off through 3rd gear with TC off and LC on RPM mode only and each gear felt solid.

It doesn't do anything about the clutch feel, but that's another issue entirely.
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Old 03-22-2015, 02:19 PM   #10
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Makes you wonder why WHITELINE doesn't just do this from the beginning?
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Old 03-22-2015, 03:01 PM   #11
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Just depends on what the ultimate goal of the piece is. If you want max rigidity you have to fill all of the void and eliminate movement. But, making something totally rigid makes you feel every vibration and transmits noise through every component it contacts.

Ever driven a car with solid motor mounts or plates? It's great for transmitting power, but you feel everything.
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Old 03-22-2015, 03:03 PM   #12
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Quote:
Originally Posted by SilverS550 View Post
Just depends on what the ultimate goal of the piece is. If you want max rigidity you have to fill all of the void and eliminate movement. But, making something totally rigid makes you feel every vibration and transmits noise through every component it contacts.

Ever driven a car with solid motor mounts or plates? It's great for transmitting power, but you feel everything.

Yeah I hear ya.
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Old 03-23-2015, 01:04 PM   #13
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I installed the steeda transmission insert and I could feel the shifter vibrates more right after.

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Old 03-23-2015, 02:32 PM   #14
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I put the car on the lift again today. After driving it a bit I was noticing some noise in the car while cruising. It was like a cross between alternator whine and gear noise. I knew it was the bushing amplifying it because it wasn't there before.

So I dropped the trans crossmember and noticed that it's metal to metal contact between the trans mount and crossmember. I have a roll of this super dense 1/16" polyurethane mat that normally goes under gym floors and figure I'd try something. So I cut a 2" x 5" piece and drilled two 1/2" holes 3.75" apart for the mount studs. Put it between the trans mount and the crossmember and took it for a ride......smooth as glass.
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