Before installing these T1R adjustable toe arms (more popularly known as the T1R "bump steer kit" / BSK) I figured I'd throw them on the scale to compare weight to the OEM toe arms. I'm sharing it here, in the case that anyone needs the info or is curious.

These are the "complete" assemblies, not including the reused chassis-side bolt. I used a simple "postage scale" so don't go building your 'race car' around these measurements, but I've found this particular scale to be fairly accurate.

OEM: 873g (30.8oz) + Castle nut & cotter pin (not pictured): 20g (0.7oz)


T1R: 984g (34.7oz)


PLEASE PM me if you have this part, and did the install yourself! I have a couple of questions.

 

Intresting

 

Tell us experiences after installing these things! I'm curious if you actually "feel" the difference

 

in for results as well

 

Here's another set of measurements you may find interesting, and that I found frustrating.

OEM arm, bushing width: 44mm


T1R arm, rod end with spacers width: 46.5mm


Chassis receiver: APPROX. 44.7mm - 44.8mm (The metal in this area isn't perfectly straight, nor are the sides perfectly parallel, so the clearance varies depending on measured location.)


The T1R rods are 2-3mm TOO WIDE to fit properly in the toe adjustment joint! I of course discovered this while trying to fit the new arms on my car. The rods could be forced in, but the connection is then too tight, defeating the purpose of the toe adjustment bolt.

Am I missing something here? Installation on these should be obvious, but maybe there's something I don't know, or something I'm doing wrong. Is it an AP1/AP2 thing? I can get the spacers machined, but I think something like this (with the heavy price tag it carries) should fit out of the box.

Additional measurements to confirm my problem:

Rod end (ball) depth: 21mm


Spacer depth (total): 21.5mm


Spacer depth (exposed): 12.6mm


Meaning the spacer is inserted approximately 9mm into the ball, a total of 18mm for both spacers, and a resultant 3mm gap between them when completely inserted inside the ball.

 

I dont think you use the toe adjustment bolt anymore after installing these. You rotate the shaft untin toe is correct and lock it up with the nuts on each side...

But 1,7mm difference is a bit large but i dont think it would be THAT big of a deal.. Perhaps its ment to be forced in to get a tight installation...

 

I can see that being the case, however, it kind of defeats one of the adjustable properties of these arms. In that situation you would still be able to adjust toe by lengthening the rod, however this would also change the rod arc (travel), and thus change its bumpsteer adjustment characteristics.

Additionally, it is only approx. 2mm, however that 2mm makes it a REALLY tight fit. I tried to see if I could muscle it in on the driver's side, but it required removing the outboard rod end and hitting with a mallet/hammer just to make it budge.

I'd really like to hear from anyone else who's had experience installing these, or anybody who can tell me what I might be doing incorrectly. I'm actually becoming quite aggravated with what (in my mind) should have been a straightforward install.

 

if you get these installed, will you post a review as to the difference in feel it provides?

 

IF I get these installed, I will most definitely share my thoughts. So far (because of the aforementioned problem) I'm not impressed.

 

lol....i'm surprised no one has mentioned these problems before??