[Revshift]

I installed this today with the tips from Fuzzy it went extremely smooth. I was able to pry it in without much issue.

I put the vehicle on the ground and shifted gears and it felt good real solid I was excited had just gotten out of an 11 hour shift had been up for over 24hours and went to bed. Woke up late and had to head back into work. I reversed out of my driveway and it felt great. I started driving put it in first... then second? Second? What the hell. Trying to get it into second gear while moving was extremely difficult and when you got it in it would vibrate horrifically unless i held it to the bottom left of the shifter gate with all my strength then it wouldn't vibrate. I said ok lets try 3rd and that was smooth like first. I then tried 4th and everytime you tried to put it in it sound like gears grinding it was terrible. I put it in 5th that was fine even 6th was ok.

Anyone have any ideas why this could be happening? I have the (custom short shifter) and am thinking of maybe adjusting that bottom bolt that hooks to the linkage. I know people have said sometimes if the nut is too tight or loose it can cause issues but does anyone else have any ideas?

So far we have heard nothing but great things from the dozens of people who have installed the insert. I have a feeling the issue is related to your custom short shifter. Also, if your motor mounts are sagging it could cause the trans to be angled as well. Keep us posted on what you figure out.

 

[Revshift]

I also recently installed this and at first had a LOT more vibration in the car, which settled down a little bit over the last few days. It did mostly resolve my issue with "finding" Reverse and some notchiness when shifting all gears, but made it harder to use 6th gear (who needs 6th anyway ...). My main issue is the amount of noise I'm getting in the cabin from the engine/exhaust, which seems to have gotten much louder and much more rumble in my seat since installing the insert. I double-checked the header band clamps which are right under my seat and they don't appear to be leaking, so I'm assuming that it's just the insert transmitting sound into the car. I'm usually not against "louder", but this isn't louder in a good way, it sounds like a giant sewing machine at 3K RPM, rather than a rumbling beast and was fairly quiet without much vibration before the insert. I'm debating taking it out to see which way I prefer, since it's so easy to install after you know how to do it.

Just curious, how did you take it out? Any tips you can share? I was thinking of using a c-clamp and some small blocks to push it back out.

How are your motor mounts? If they are bad then the insert can transmit the nvh from the bad motor mounts. Usually when people install our motor mounts and trans insert together they say that its nice and smooth. Sagging motor mounts could be the cause of the difficulty going into 6th gear as well.

 

[Revshift]

They're brand new OEMs installed by the dealer less than 400 miles ago, where they removed the headers and replaced the band clamps with brand new ones that I provided. My preference would have been non-OEMs, but since I wasn't paying for it ... I let them install what they'll "support".

I installed the trans insert a couple of days after getting the car back and can only correlate the increased noise with the transmission insert until I take it out and determine that the extra noise/vibration has to do with something from the motor mount install gone awry or a new issue that's developed.

Interesting. There is definitely some more investigating needed. It is common for stiffer polyurethane parts to help identify other issues that need addressing. Keep me posted on what you find.

 

[Revshift]

All I can think of is that the stock mounts, even when new, cause a lot of play in the engine bay that's being transferred down the drivetrain and traveling up the solidified mount with the revshift insert. If you had more solid mounts like revshifts or UMIs, that vibration would be dampened by the entire car.

This is what I am thinking too. I didn't want to say it before someone else because I didn't want anyone to think I was just pulling excuses out of the air. It is possible that the frequency of the new oem mounts and the frequency of the polyurethane insert are reacting with each other somehow around 3000 rpm and causing vibration. Then, once everything is broken in, the frequencies change a bit and everything is smooth. Obviously, with polyurethane motor mounts and trans insert the frequencies would be similar which would not cause any strange interactions or sudden vibration.

After installing my Trans insert, I had a slight vibration increase. I just finished installing the Revshift MM's a couple days ago, and my vibration is ZERO now. The Trans insert had been in the vehicle for a month before MM install. My exhaust noise level has also decreased to a minimum, unless I'm lead-footing it...which I always do. Both of those mounts were the 80A Blue. I will be going with 95A Cradle/Trailing Arm/Control Arms once all are released. Other than a longer than expected wait due to Black Friday flooding sales, I am EXTREMELY please with Revshift products and customer service!

This further makes me think that the frequency of the oem motor mounts is somehow countering the polyurethane insert in some situations. The polyurethane motor and trans insert work well together and make everything nice.

Glad to hear you are happy, FoD! We do our best!

 

[Revshift]

I couldn't pass this up ... care to rush order a free set of 80A MM's and I'll install between them to "test" this theory

Can't do that, we have bills to pay! The apocalypse sale still has a few hours left, though. The world didn't end today so you can still get a discount.

 

[Revshift]

Yeah, I'd like to see a full mount option from Revshift to compete with Creative Steel in this area.

Alright, you got it. I've been putting it off for long enough. I already have it designed. I guess its time to make a real life part. There will be no competition.

Do you want a better toe rod option while we are at it?

 

[Revshift]

Any chance it'll be height adjustable (e.g. screw drive) or provide better lateral support?

I wont say specifics right now but you will be happy with it.

How about a 80a guibo joint? One that can be a solution for the majority of misaligned drivetrains....

There is an 80A full poly indestructible guibo in the works. We are waiting on patents. Yes, its that serious.