Just ordered both of these! I really would love to know the real reason Subaru designed the crankshaft offset like it was. If they wanted it straight it would have been straight, so I wonder what we're potentially sacrificing here. Like the plastic pitch stop that everyone upgrades- the plastic had functionality so that in an accident the engine could "slide down" instead of straight back into the cabin.
It's for crash safety. In the event of an accident, the two piece drive shaft is designed to bend down and away from the passengers/drivers. Same thing for the plastic pitch stop. In an accident, the pitch stop mount is designed to push the engine down away from the driver or break in the event of a bad crash
@ Thankya. Unlike the other carrier upgrade which replaces this with full metal encasement, I think this one which sandwiches in two horse shoes- should still allow that safety feature to work right? It's not often that you see horror stories or posts on the internet about driveshafts penetrating the cabin... In fact, I've never heard of that that happen before.
@PERRINPerformance not so much the NVH, but any long-term structural impacts to the frame of the car that the drive shaft carrier is attached to, due to vibrations, etc.
We have no concerns with this because the carrier bearing is still supported by rubber. And there is not much force being applied to this. This kind of part has been around for quite some time and no issues have been reported.
Installed the driveshaft lockdown & carrier bushings last night on my 2023 WRX. Just went for a drive to make sure everything was good. I’m getting a slight odor of burning rubber. Is that normal?
@@KuyaPow626 It’s fine now. Re-inspected everything and driveshaft is centered perfect & everything torqued to spec. No odd noises, vibrations or odors anymore 🤙🏼
@@KuyaPow626 No changes or adjustments made. Been driving for a week now and no issues at all. Thinking maybe since it was new install it had a short break in period or something. Hopefully no carrier bearing pre-mature failures down the road…
Glad to hear that the smell went away. As far as the root caute of the smell id imagine some gunk fell on the exauhst when you poped out the old carrier bushings. Even if the carrier bearing was not lined up perfectly you wouldnt hace any rubbing or grinding issues, so thats my best guess.
The large benefit to these especially together, is they will give you a better drive feel. You will feel more of the road beneath you and how your car is reacting to it. These parts fall under the same category as a transmission mount or our engine mounts. The added stiffness of these parts and those alike aid in connecting the car and the road to the driver.
Pre install issue:clunking from ds center support during transition from acceleration to deceleration and the inverse. Vibration comes on at 30mph and becomes harmonic at about 45. Something is certainly wrong.
I wanna make sure I understand exactly what’s going on. So just to clarify, this is an issue that is/was happening before you installed the driveshaft lockdown?
Have you guys had anyone complain about drive shaft vibrations prior to install? I have a 22 with 30k miles and im having some pretty intense vibration at various speeds. Its not the wheels everything is balance, too early for it to really be ball joints or bearing. Which leads me to believe its drive shaft vibrations
That is not something we have heard of on these cars. I would double check that the pitch stop mount is tightened or not broken, as that can do some weird things if its loose. If that is tight, then it could be drivetrain related and this might help. If you can check the pitch stop get back to us and we can work out a deal to see if our parts fix the problem.
@PERRINPerformance I already had the carrier bushings ( preveously done, another brand product, aluminium one's) did not feel any change... but whit the lockdown added. ... i love the subtle NVH it's addidng and the directness of the connection you feel trough acceleration.
Good stuff Perrin 👍
😏
Just ordered both of these! I really would love to know the real reason Subaru designed the crankshaft offset like it was. If they wanted it straight it would have been straight, so I wonder what we're potentially sacrificing here. Like the plastic pitch stop that everyone upgrades- the plastic had functionality so that in an accident the engine could "slide down" instead of straight back into the cabin.
We dont have a definitive answer, im sure Subaru does😂 but... our best guess is it was a required saftey measure to pass standards.
It's for crash safety. In the event of an accident, the two piece drive shaft is designed to bend down and away from the passengers/drivers. Same thing for the plastic pitch stop. In an accident, the pitch stop mount is designed to push the engine down away from the driver or break in the event of a bad crash
@ Thankya. Unlike the other carrier upgrade which replaces this with full metal encasement, I think this one which sandwiches in two horse shoes- should still allow that safety feature to work right? It's not often that you see horror stories or posts on the internet about driveshafts penetrating the cabin... In fact, I've never heard of that that happen before.
Are there any plans to make carrier bushings that are made of poly instead of solid metal?
We dont have any plans to make them out of poly. Are you concerned about noise/vibration?
@PERRINPerformance not so much the NVH, but any long-term structural impacts to the frame of the car that the drive shaft carrier is attached to, due to vibrations, etc.
We have no concerns with this because the carrier bearing is still supported by rubber. And there is not much force being applied to this. This kind of part has been around for quite some time and no issues have been reported.
@@PERRINPerformance thanks that's helpful
Awesome! Have a great holiday!
Installed the driveshaft lockdown & carrier bushings last night on my 2023 WRX. Just went for a drive to make sure everything was good. I’m getting a slight odor of burning rubber. Is that normal?
I think you should look under there and reinspect lol
@@KuyaPow626 It’s fine now. Re-inspected everything and driveshaft is centered perfect & everything torqued to spec. No odd noises, vibrations or odors anymore 🤙🏼
@@AaronWhitt82 You didnt need to change or adjust anything? Never found out the root cause?
@@KuyaPow626 No changes or adjustments made. Been driving for a week now and no issues at all. Thinking maybe since it was new install it had a short break in period or something. Hopefully no carrier bearing pre-mature failures down the road…
Glad to hear that the smell went away. As far as the root caute of the smell id imagine some gunk fell on the exauhst when you poped out the old carrier bushings. Even if the carrier bearing was not lined up perfectly you wouldnt hace any rubbing or grinding issues, so thats my best guess.
will these parts put tohether allow fow more horsepower to the ground? if so then how much?
The large benefit to these especially together, is they will give you a better drive feel. You will feel more of the road beneath you and how your car is reacting to it. These parts fall under the same category as a transmission mount or our engine mounts. The added stiffness of these parts and those alike aid in connecting the car and the road to the driver.
@@PERRINPerformance ok. Sounds good. I already have transmission,engine mount and pitch stop. I like that feel
Pre install issue:clunking from ds center support during transition from acceleration to deceleration and the inverse. Vibration comes on at 30mph and becomes harmonic at about 45. Something is certainly wrong.
I wanna make sure I understand exactly what’s going on. So just to clarify, this is an issue that is/was happening before you installed the driveshaft lockdown?
Also, what year and model do you have? Also the mileage would be helpful.
Have you guys had anyone complain about drive shaft vibrations prior to install? I have a 22 with 30k miles and im having some pretty intense vibration at various speeds. Its not the wheels everything is balance, too early for it to really be ball joints or bearing. Which leads me to believe its drive shaft vibrations
That is not something we have heard of on these cars. I would double check that the pitch stop mount is tightened or not broken, as that can do some weird things if its loose. If that is tight, then it could be drivetrain related and this might help. If you can check the pitch stop get back to us and we can work out a deal to see if our parts fix the problem.
30 min instal , very litle more vibrations, love it !!!
sweeeet! did you install both the lockdown and carrier bushings?
@PERRINPerformance I already had the carrier bushings ( preveously done, another brand product, aluminium one's) did not feel any change... but whit the lockdown added. ... i love the subtle NVH it's addidng and the directness of the connection you feel trough acceleration.
Yo Jeff sherpa team for the win salmon color haha...
Can you elaborate?🤨
@@PERRINPerformance Worked at BFO with Jeff and sold his dad his first mountain bike lol...
Oh dang! Alright then, Jeff wasn't entirely sure but he says "what up"!