What driveline bushings would you replace first? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Shady195 · 07-02-2015, 08:17 AM

I know there is a lot of info on the replacement bushings for our cars and what they accomplish but it seems all over the place in regards to what people do first.

I'm looking for a bit more responsiveness when drifting, and just an overall more positive feel when driving.

I'm trying to figure out where to start first, the rear sub frame/the diff bushings or any other bushings..

Do i need to do them all at once? I do have some concerns about stiffening up one thing only to wear out another more prematurely. Also curious if its going to make everything to loud? I'm okay with a little more noise, but i do daily drive my car and go on 3+ hour trips quite often. I udnerstand its a game of give an take when trying to balance a car that is your DD and something you want to take to the track but just trying to find that happy inbetween.

brillo · 07-02-2015, 10:56 AM

I have so far installed the rear subframe, steering rack, front LCA and transmission inert from whiteline with no material NVH increase. All of these have sharpened the steering response and eliminated alot of the slop in the rear end.

This is mostly a daily driver that I also use for HPDE events so I'm sensitive to making the car too harsh. While it is a third car, I wouldn't be concerned about a road trip with the modifications.

I'm looking into installing the avoturbo world anti tramp bushing insert for the diff to further stiffen up the driveline without all the harshness of a full bushing replacement.

curious if anyone has any NVH feedback on the avoturboworld anti tramp bushing.

JozhGoober · 07-02-2015, 10:57 AM

The rear subframe inserts (not the full replacement bushings) and the transmission mount insert are inexpensive and relatively easy installs, and give a much improved feel with a very minor increase in noise/vibration.

The diff inserts help a little more but gave me a fair amount more noise. I did them later, I like them but I would start with the subframe and trans inserts.

Edit: Forgot to mention, the steering rack bushings are another good improvement without any real downside.

brillo · 07-02-2015, 10:58 AM

Quote:

Originally Posted by JozhGoober

The rear subframe inserts (not the full replacement bushings) and the transmission mount insert are inexpensive and relatively easy installs, and give a much improved feel with a very minor increase in noise/vibration.

The diff inserts help a little more but gave me a fair amount more noise. I did them later, I like them but I would start with the subframe and trans inserts.

Edit: Forgot to mention, the steering rack bushings are another good improvement without any real downside.

which diff insert did you use?

JozhGoober · 07-02-2015, 12:34 PM

Quote:

Originally Posted by brillo

which diff insert did you use?

The Whiteline one, KDT925: http://www.whiteline.com.au/product_..._number=KDT925

mrk1 · 07-02-2015, 12:57 PM

Rear subframe bushings are awesome, also the solid steering rack bushings.

07-02-2015, 08:17 AM	#1
Shady195 Senior Member Join Date: Jun 2014 Drives: '13 10 Series FRS #1203 Location: Albany, NY Posts: 850 Thanks: 7 Thanked 385 Times in 220 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	What driveline bushings would you replace first? I know there is a lot of info on the replacement bushings for our cars and what they accomplish but it seems all over the place in regards to what people do first. I'm looking for a bit more responsiveness when drifting, and just an overall more positive feel when driving. I'm trying to figure out where to start first, the rear sub frame/the diff bushings or any other bushings.. Do i need to do them all at once? I do have some concerns about stiffening up one thing only to wear out another more prematurely. Also curious if its going to make everything to loud? I'm okay with a little more noise, but i do daily drive my car and go on 3+ hour trips quite often. I udnerstand its a game of give an take when trying to balance a car that is your DD and something you want to take to the track but just trying to find that happy inbetween.

07-02-2015, 10:56 AM	#2
brillo Senior Member Join Date: Nov 2011 Drives: 2013 Firestorm FR-S Location: Houston Posts: 506 Thanks: 18 Thanked 77 Times in 64 Posts Mentioned: 10 Post(s) Tagged: 0 Thread(s)	I have so far installed the rear subframe, steering rack, front LCA and transmission inert from whiteline with no material NVH increase. All of these have sharpened the steering response and eliminated alot of the slop in the rear end. This is mostly a daily driver that I also use for HPDE events so I'm sensitive to making the car too harsh. While it is a third car, I wouldn't be concerned about a road trip with the modifications. I'm looking into installing the avoturbo world anti tramp bushing insert for the diff to further stiffen up the driveline without all the harshness of a full bushing replacement. curious if anyone has any NVH feedback on the avoturboworld anti tramp bushing. __________________ 2013 Firestorm FR-S, MTX, build date 1/13.

07-02-2015, 12:57 PM	#6
mrk1 Senior Member Join Date: Mar 2013 Drives: Sterling BRZ Ltd Location: New England Posts: 1,702 Thanks: 403 Thanked 1,389 Times in 671 Posts Mentioned: 20 Post(s) Tagged: 2 Thread(s)	Rear subframe bushings are awesome, also the solid steering rack bushings. __________________ The Build Thread GT28RS - eBoost2 - 3.91 Final Drive - Supra LSD

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07-02-2015, 10:57 AM	#3
JozhGoober Member Join Date: Oct 2013 Drives: 2020 718 GT4, 2013 FR-S (Turbo) Location: Spangdahlem, Germany Posts: 59 Thanks: 7 Thanked 37 Times in 21 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	The rear subframe inserts (not the full replacement bushings) and the transmission mount insert are inexpensive and relatively easy installs, and give a much improved feel with a very minor increase in noise/vibration. The diff inserts help a little more but gave me a fair amount more noise. I did them later, I like them but I would start with the subframe and trans inserts. Edit: Forgot to mention, the steering rack bushings are another good improvement without any real downside.

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