I started this thread if there are any questions about the R56 Trailing Arm for R53 Conversion Kit we offer.

Parts included:
1 Trailing Arm - Aluminum Left 33-32-6-765-377
1 Trailing Arm - Aluminum Right 33-32-6-765-378
2 Self tapping Screw M14x1.5x101 33-32-6-770-089
2 Bushing Stopper 33-31-6-761-779
1 Bushing Bracket Left 33-30-6-772-665
1 Bushing Bracket Right 33-30-6-772-666
2 Hex Bolt with Washer M12x1.5x83-10.9 33-30-6-768-048
2 Self Locking Collar Nut M12x1.5-10ZNS3 33-32-6-760-374
2 Hex Bolt with Washer M12x1.5x100 33-30-6-772-658
2 Adjusting Plate 33-32-6-767-869
2 Cage Nut M12x1.5-10ZNS3 33-30-6-770-138
8 Hex Bolt with Washer M10x75-10.9 33-50-6-771-928
2 Rotational Speed Sensor Rear axle 34-52-6-773-020

You will also need to order the Helix R56 Rear Shock Bushings

 

like Ryan found in the Alliance article, you need to do something about the sway bar end link. The bolt on the R53 one is too short, as is the one for the Alta R53 sway bar. You can grind down the boss like Ryan did, or get a end-link for the R56. I haven't called Alta yet to see if they have parts to modify the R53 adjustable end link.

My arms didn't have tapped holes for the speed sensor allen head bolt. It's a M6x1 thread so you can buy a tap.

For those with the TCE larger rear brake rotors, you have to grind down the arms a bit otherwise the button head screws will interfere with the control arm and the caliper frame wont seat properly.

Hope this helps....

Matt

 

Since it seems this conversion (which is quite involved and expensive) is done to reduce unsprung weight, what exactly is the weight difference between R53 steel and R56 cast alumium rear arms?

 

I have read the weight difference to be 12 pounds.

 

Is this kit still available?

 

bump, did you guys actually piece together this kit?

 

We actually still offer this conversion, as I've done it to one of my cars. You actually don't need all those parts, but it's still expensive. I'll put it together for anyone that wants.

 

what parts are absolutely necessary for this conversion and how much is it?
i guess i thought i had a pretty good idea what was needed until i saw that list.

 

Hello everyone. I am doing the R56 trailing arm conversion for my R53, so I need some help from you where can I buy those Adapter online?

Thanks.

 

Folks,

Can the R52/R53 bolts be reused when doing the R56 trailing arm install? That is:

3x Pivot Arm bolts
2x Brake Caliper Mounting Bracket Bolts
1x Shock bolt
1x Eccentric bolt

I bought the trailing arms from a 3rd party, but all they included are the wheel bearing bolts. I'm trying to determine what I need to go hunt down at junk yard or buy online vs. just re-use from my R52.

Thanks for any feedback.

 

You need the R56 bolts for the shock, control arms to attach to the trailing arm, and bushing. Look at our set as it comes complete with everything you need:
https://www.waymotorworks.com/alumin...rsion-kit.html