V4.2 - S13/180sx/R32/A31/Z32 high clearance caster arms

The new V4.2 GKTECH Caster Arms offer the most amount of clearance available in a caster rod while now being 16mm thick!

Caster arms (aka tension rods) allow adjustment in vehicle castor to bring the wheels forward and increase steering response. In general, the more caster the better. Allowing sharper turn in and faster return to the straight position when letting go of the wheel.

- V4.2 arms feature high quality 5/8" Teflon lined pillow ball rod ends which eliminate the flex found in factory rubber bushing offering a more direct and predictable feel.
- V4.2 arms are manufactured from 4130 chromoly sheet with billet CNC machined ends and CNC machined 4130 chromoly adjusters.
- CAD designed, FEA tested, CNC machined ends and TIG welded
- V4.2 arms include offset bush spacers for even more clearance
- Offers a total of 56mm extra wheel clearance which equates to roughly 9 degrees of additional wheel clearance.

50% off all spanners with the purchase of this product. Simply add this product and any of our spanners to your cart and the discount will apply.

Will this fit my car?
We can only confirm fitment for the vehicles listed above under vehicle compatibility. If your car is not listed there, then we don't know if it will fit.

Do you make these to suit other cars?
We only sell the parts listed on our website. If it's not listed on our website, then we don't sell it. Sorry.

What modifications are required, is this hard to fit?
No modifications are required, simply just remove and refit.

Is there anything else needed for installation?
No, we do supply nuts and bolts for the rear of the caster arm however you will need to use your OEM bolt for the front. In terms of the arms themselves they will arrive as shown in the product photo.

Can I install this myself? If so how long will installation take?
Yes, provided you have general mechanical knowledge as they are relitively straightforward. Installation time should be around 30 minutes. However, being a suspension componentwe recommend only a trained professional to install this product.

Will I have to get a wheel alignment after installing these?
Even if you have matched the arm length to OEM. We still do recommend a wheel alignment after any suspension changes.

Are these suspension arms legal for use on street cars?
Our understanding is that any suspension arm with a rose joint is not legal for street use in Australia. However, we do recommend that you contact your local RTA for clarification/confirmation. Whether you use a suspension arm with a rose joint on public roads is at your discretion.

How long is the warranty on these arms?
All GKTECH suspension arms come with a lifetime warranty against manufacturing defects and the Teflon lined heim joints come with a 1 year replacement warranty. We stock spare heims so even after the 12 months is up we can still help with replacements, worse case scenario they're a 5/8 heim joint and are readily available through your local autoshop.

Are there any special tools required?
No, a spanner set will do the job which we do sell separately here - Open ended spanners

Do you carry spare parts for this product?
Yes we carry the following spare parts for this product, PCML12TES - https://au.gktech.com/replacement-pcml12tes-bearing

Install Videos

Assembly Guides

Download S13X-CSTR S145-CSTR - Customer ASM

Engineering Certificates

Download S13X-CSTR S145-CSTR Cert