Why does TRD only have a rear sway for the tC?
Well I have a set of TRD shocks and a rear sway comming for AutoX - It doesn't need much handling improvement I've noticed with the times I laid down at the track.
Do they thing the front is up to spec without one?
Do they thing the front is up to spec without one?
I think the main reason and what trd stated themselves was that they had a problem with designing a front sway bar for the tc to work properly. This could be the issue that hotchkis has with the front bar rubbing.
Senior Member



SL Member
sIcKsCiOnS
Team ScioNRG
DelMarVa
Scion Evolution
Scion Tuners
Joined: Nov 2003
Posts: 4,888
From: SuperiorWash (MD)
Originally Posted by coppermine18
Well I have a set of TRD shocks and a rear sway comming for AutoX - It doesn't need much handling improvement I've noticed with the times I laid down at the track.
Do they thing the front is up to spec without one?
Do they thing the front is up to spec without one?
im sure you are putting down good times, but you can always improve with a better set up
but as far not having front sway, honestly you dont really need to replace the OEM up front, not gonna make THAT MUCH of a difference, IMO
Originally Posted by ScionBandit
Originally Posted by coppermine18
Well I have a set of TRD shocks and a rear sway comming for AutoX - It doesn't need much handling improvement I've noticed with the times I laid down at the track.
Do they thing the front is up to spec without one?
Do they thing the front is up to spec without one?
im sure you are putting down good times, but you can always improve with a better set up
but as far not having front sway, honestly you dont really need to replace the OEM up front, not gonna make THAT MUCH of a difference, IMO
Also I am a firm believer that AutoX is down to the drivers abilities - some stock MR2s etc were just smoking the track with a great driver as well as some other cars. My tC handled INCREDIBLY well for stock at the time on the first event.
Link:
https://www.scionlife.com/forums/viewtopic.php?t=111966
I have the hotchis front sway bar and it has been a pain ever since I put the thing on. You need a butt load of grease to keep the thing from squeekin, then it has nothing to keep it from sliding back and forth through the bushings. The stock bar has a washer welded on, similar to the trd rear, that keeps it from sliding.
Determined to make the thing work, I bought a grease gun, greased the hell out the bushings, there is a grease port on the bushing clamp. And to remedy the sliding, I took some 1" split collars (since the bar is 15/16") and tapped a 3/8" hole for a setscrew. Put those inboard of the bushings and cranked the hell out of the setscrew, and it's been solid ever since.
As for the difference, I can definitely tell. Over steer is eliminated, especially in high speed cornering, and the wheels drive straight and stiff no matter what the road condition. A definite must for autocross.
Determined to make the thing work, I bought a grease gun, greased the hell out the bushings, there is a grease port on the bushing clamp. And to remedy the sliding, I took some 1" split collars (since the bar is 15/16") and tapped a 3/8" hole for a setscrew. Put those inboard of the bushings and cranked the hell out of the setscrew, and it's been solid ever since.
As for the difference, I can definitely tell. Over steer is eliminated, especially in high speed cornering, and the wheels drive straight and stiff no matter what the road condition. A definite must for autocross.
yeah i wouldnt agree that a front bar wouldnt do anything. It lets you stiff the car up a lot more, because you can offset the front with the back bar giving you overall more stiffness. Ofcourse this is just speculation on my part however most hotchkis owners tend to agree.
Hotchkis makes a good bar, it's almost twice as thick as stock, with adjustable stiffness. However, they should have caught the thing slidling when they developed it.
I would recomend the Hotchkis front and rear sways, good quality, and for the price, you can't beat it. I heard they don't work well with coilovers, they change the sway link position, forcing the bar to hit the end links.
I would recomend the Hotchkis front and rear sways, good quality, and for the price, you can't beat it. I heard they don't work well with coilovers, they change the sway link position, forcing the bar to hit the end links.
I believe the TRD rear sway is a Hotchkis sway. I could be wrong on this, but I do know that TRD buys a lot of aftermarket parts and re-labels them as TRD parts.
I'm perfectly OK with that, as long as I get the additional warranty protection of buying TRD parts.
Whatever the case, the Hotchkis strut tower bar is awesome quality, and you can't go wrong buying parts from them either way.
I had the Hotchkis strut tower bar and TRD rear sway installed at the same time, then had the TRD shocks and lowering springs put on a few months later.
HUGE difference with all the parts on, and noticably tighter with just the front and rear bars as well.
I'm perfectly OK with that, as long as I get the additional warranty protection of buying TRD parts.
Whatever the case, the Hotchkis strut tower bar is awesome quality, and you can't go wrong buying parts from them either way.
I had the Hotchkis strut tower bar and TRD rear sway installed at the same time, then had the TRD shocks and lowering springs put on a few months later.
HUGE difference with all the parts on, and noticably tighter with just the front and rear bars as well.
Senior Member





SoCal tC Club
SL Member
Team N.V.S.
Scinergy
Scion Evolution
Joined: Oct 2004
Posts: 15,699
Originally Posted by Somnambulated
I believe the TRD rear sway is a Hotchkis sway. I could be wrong on this, but I do know that TRD buys a lot of aftermarket parts and re-labels them as TRD parts.
but yeah... TRD does buy alot of other company's products for themselves... the Hotchki's strut bar and TRD's are basically the same. and then the AEM intake.. same..
Originally Posted by cdubber9
I would recomend the Hotchkis front and rear sways, good quality, and for the price, you can't beat it. I heard they don't work well with coilovers, they change the sway link position, forcing the bar to hit the end links.
Im pretty sure Progress group makes the TRD bar since the Hotchkis bar is so much larger in comparison. Either way, the TRD bar is not a huge increase in stiffness over stock so with the stock front bar there is still a nice balance. With the Hotchis rear bar being so much stiffer than the stock rear bar, a front bar is included to bring the front end to a level where it has better balance. The rear Hotchkis bar by itself makes a huge difference over the TRD bar even, but is more well rounded when it has the larger front bar to compliment it.
21F 18R <--manual
21F 20R <--auto
both solid
hotchkis = hollow
24F 2 positions
27R 3 position
progress auto = solid
22R 3 position
trd = solid
22R 2 position
ST = solid
23F 20R (not sure how many positions)
do not say the TRD sway bar SUCKS because they designed the bar to be ONLY that stiff. TRD/PROGRESS believed taht anything stiffer or bigger will be TOO STIFF for the car.
i have driven cars with the HOTCHKIS and PROGRESS. the hotchkis seems to be very stiff for street use but is perfect if you upgraded tires etc etc.
it all depends on your level of tuning
21F 20R <--auto
both solid
hotchkis = hollow
24F 2 positions
27R 3 position
progress auto = solid
22R 3 position
trd = solid
22R 2 position
ST = solid
23F 20R (not sure how many positions)
do not say the TRD sway bar SUCKS because they designed the bar to be ONLY that stiff. TRD/PROGRESS believed taht anything stiffer or bigger will be TOO STIFF for the car.
i have driven cars with the HOTCHKIS and PROGRESS. the hotchkis seems to be very stiff for street use but is perfect if you upgraded tires etc etc.
it all depends on your level of tuning
IMHO TRD knows what they are doing and put the time in and do the research to build a balanced product and have a rhyme behind their reason.
I wanted to know because since they did not release a front sway when all the others are in sets... They had a good reason.
I wanted to know because since they did not release a front sway when all the others are in sets... They had a good reason.
I didnt see that said either, but what I will say is that if you plan to get into a lot of autoX or open track driving, the TRD rear bar will quickly show its weakness and you will want to upgrade. If you are only driing aggresively on the street, it will be more than adequate.
Originally Posted by cdubber9
Originally Posted by hahaitzskippy
hotchkis = hollow
24F 3 positions
27R 2 position
24F 3 positions
27R 2 position
Originally Posted by The_Instigator
I didnt see that said either, but what I will say is that if you plan to get into a lot of autoX or open track driving, the TRD rear bar will quickly show its weakness and you will want to upgrade. If you are only driing aggresively on the street, it will be more than adequate.
I am throwing on the TRD shocks and swaybar friday and checking them out.
I was impressed with how the car handled being pushed to its stockish limits.
Originally Posted by Kilo6_one
so basically no difference between progress and the TRD, and the hotchkis is the stiffest? im still deciding.......


