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79K views 52 replies 17 participants last post by  le0n  
#1 · (Edited)
Why swap? The GTI utilizes 286mm rear rotors (solid), just 2mm smaller than the rabbit front rotors (288mm vented). Everyone has heard about the quick wear on the Rabbit rear brakes. However, the GTI's do not appear to have this problem. So at the cost of a few extra unsprung pounds you get longer brake pad/rotor life and shorter braking. Just like the front brakes the GTI and Rabbits share the same pads and calipers, the only difference being the rotor and caliper carriers.

Difficulty rating 4/10 If you have the right tools its fairly simple.

A couple of things to note.
You cannot remove the rear calipers with the ebrake on. Use wheel chocks to stop the front wheels from moving and leave the car in 1st gear (manual) or park (automatic).
You'll only need to do about 1/2 of what is shown if you are swapping the stock rotors/pads for a rabbit.

Rotor Comparison (Rabbit rotor weight 9.0lbs GTI rotor weight 10.5lbs)
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Carrier Comparison (GTI's are in black at 1.5lbs, Rabbits in silver at 2lbs)
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Tools required.

Jack
14mm Triple Square
3/8 in drive breaker bar
T30 bit
17mm deep weld socket and appropriate ratchet
caliper piston compressor kit
$99 tool rental at Advanced Auto Parts(fully refundable)
$55 tool rental at Autozone (fully refundable)
$20 (not including tax/shipping) to purchase from Harbor Freight (larger kit is $35)

My final price from Harbor Freight was $30.40

GTI swap additional tools
13mm socket w/ ratchet
15mm box/open end wrench
tin snips

I'm starting this off easy by breaking the torque on the lug nuts, jacking up the rear control arm then removing the wheel/tire.
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Locate the 14mm triple square bolts.
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Curse the skies in anger when the torque finally breaks and you rack your knuckles.

Loosen bottom bolt.
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Remove top and bottom 14mm triple square bolt and wiggle caliper loose. (Note, you cannot remove the caliper with the ebrake on.)
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brace the caliper on something so as not to put any undue stress on the brake lines.
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#36 · (Edited)
Thanks for all the info!
Could you please post the weight of the calipers? Can you get phenolic pistons or are they already thin Stainless?

I'm interested in swapping rear golf/Beetle discs (232mm I believe are smallest) onto a non German car-
I'm guessing the assembly is lighter than the OE drums and is certainly lighter than the OE discs, but would like to make sure.
So far I get the discs are 6.5lbs, they appear different from the items you've posted. I see the brackets are 2lbs, but I have no idea on the caliper.
Thanks!!!

Are the front calipers aluminum on any of these (basic) vehicles, per chance?
 
#40 · (Edited)
Thanks! I'd guess not! Is the GTI (besides the paint) different from the basic Golf/Beetle?
From your thread, they seem to be interchangeable.
The last VW we had was from the 70's-early 80's, was a diesel and it didn't go away until the compression was so poor it had to be plugged in to start in Summer!
Simple, efficient- So that's where my VW knowledge ends.

That's very heavy! More so than our cast iron fronts.
Is the mounting bracket included? in the weight?
 
#41 ·
The calipers are the same on the GTI/GOLF/Rabbit for 2006-2009, I'm not sure about the beetle. That is just the weight of the caliper. They're pretty heavy.

The beetle uses 288x25 front rotors which are the same size as the Rabbit/Golf rotors. The P/N is different for the caliper but it lists it as the whole assembly and I cannot reference the caliper by its self.

I did however buy my calipers/carriers and everything from a Beetle owner who intended to install them on his car.
 
#44 ·
For sure, for doing the rotors you shouldn't have to be under the vehicle and by just compressing the suspension on the one wheel as you said you will have 3 other stable wheels. I always get uneasy when I see people doing anything with lifting a vehicle to work on without proper supports, sadly I've seen someone get hurt first hand. While this person was not been the sharpest tool in the shed it can happen to anyone.

Back on topic, good write up! Informative, thanks!
 
#45 ·
I was about 2 seconds from losing my fingers-

Using a large wooden block to rest the vehicle on- My helper dropped the jack just as I had finished adjusting it- Inadvertent and stupid on both our parts.

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Here's what I got on the calipers, I'm very excited that this will lighten the rears and amazed other manufacturers haven't used this simple solution.
Ours use a large disc (retrofitted to a compact from the medium sized models) and
a drum as park/emergency brake ... Heavy.

Now onto the fronts, to the Focus forum to get caliper/adapter weight for the '09's
 
#46 ·
Have you guys experienced problems with the Rabbit brakes? I can't state anything negative about the brakes on mine - one of the best brakes I know - ABS and ESP works like a charm. I had once to stop on the highway from 75MPH when I realized that an older lady decided to park on the left lane and the car in front of me got the last hole in the middle lane. Car stopped surprisingly well - was more concerned about the the car behind that missed me by a few yards...

No excessive wear in the pads or rotors - with my other cars I had to replace parts much sooner.

Swapping the brakes with GTI ones I'd had some concern about the ESP performance - I know how Conti is developing the systems and what extensive tests and software adjustments they run for every little change in the breaks system. I am a fan of ESP - saved me a few times the cars - on and off the Autobahn.
 
#47 ·
I never had a problem. Most people complain about the rear pads wearing out too fast. This is due to how the brakes are biased to prevent nose dive.

I only swapped because I felt I needed the additional braking force. GTI uses the same calipers so it will not affect the ESP.
 
#49 ·
Comparing vented vs. non vented discs. Different caliper, etc... I suspect that there is less clearance designed for the rear brakes on the rabbit because it is a non-vented rotor.
 
#52 ·
Excellent help! However, I'm in the middle of replacing rear pads on a 2007 Rabbit. Caliper off o.k. Then, replaced pads in clip on both sides of the rotor. Borrrowed piston compression tool for screw type pistons. However, when I turn the tool in either direction, it rotates only a couple of times and and doesn't seem to be retracting the piston. Any ideas? Thank you. Tom B.