Author Topic: MK2 rear Cartridge Bearing upgrade UPDATED  (Read 11789 times)

April 20, 2017, 11:02:25 pm

srgtlord

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MK2 rear Cartridge Bearing upgrade UPDATED
« on: April 20, 2017, 11:02:25 pm »
Edit: This swap works in the same way the polo disk upgrade work except it's a bit easier to find parts because nobody wants drum brakes :) 
Drum brakes when fitted with new hardware are designed to last 200,000 miles. The polo 6n2 bearings are projected to last 100,000 to 140,000 miles. That means no more regreasing/adjusting the bearings ever again.

To give you an idea of what polo parts to buy here are some links

New Stub axle    VW part number : 6Q0501117
https://www.mecatechnic.com/en-GB/1-rear-stub-axle-for-polo-9n_GH27610.htm

New bearing      VW part number : 6X0598477
https://micksgarage.com/search-oenumber?oenumber=6X0598477

New  200 mm Drum  VW part number : 6X0609617A
https://www.micksgarage.com/search-oenumber?oenumber=6X0609617A

New 180mm Drum  VW part number : 6X0609617
https://micksgarage.com/search-oenumber?oenumber=6X0609617


Just find a set of mk3 200mm drum assemblies, take off the mk3 drum, use the drum backing plate and mk3 brake shoe internals, attach the polo stuff and blam! You have a full set

UPDATE: The MK2 standard backing plate and drum internals should work. I test fitted the stub and the polo bearing but did not have the part numbers for the 180mm drum until recently. Based off the part dimensions the 180mm drum should fit but proceed at your own risk. The 180mm polo drum has not been tested yet





Update will follow as the parts come in
« Last Edit: July 01, 2017, 02:57:55 pm by srgtlord »



Reply #1April 22, 2017, 10:19:30 am

theman53

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Re: Cartridge Bearing upgrade
« Reply #1 on: April 22, 2017, 10:19:30 am »
parts list?

Reply #2April 23, 2017, 10:55:47 am

srgtlord

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Re: Cartridge Bearing upgrade
« Reply #2 on: April 23, 2017, 10:55:47 am »
Things I know will bolt up:
Vw Polo 6n2/9n3 drum stub axles
Vw Polo 6n2 bearing/hub
Vw polo 200mm 6n2 drums

Things that also bolt up:
Vw mk3 200mm drum internals and backing plate

One thing you need to do is remove the abs ring on the bearing for everything to physically fit. I just used a flat head screwdriver to remove mine.


Edit: The drums are the same dimension as the Mk3 drums. This is going to work :)
« Last Edit: June 16, 2017, 09:41:06 am by srgtlord »

Reply #3June 15, 2017, 05:05:32 pm

srgtlord

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Re: Cartridge Bearing upgrade
« Reply #3 on: June 15, 2017, 05:05:32 pm »
Finished! The swap worked! You can use MK3 drum backing plate and brake hardware with the polo sealed bearing and drum!







Reply #4November 01, 2017, 10:07:42 am

srgtlord

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Re: MK2 rear Cartridge Bearing upgrade UPDATED
« Reply #4 on: November 01, 2017, 10:07:42 am »
No issues yet :) My rear tires are thanking me by not wearing into weird out of round shapes

Reply #5June 17, 2018, 10:26:22 am

srgtlord

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Re: MK2 rear Cartridge Bearing upgrade UPDATED
« Reply #5 on: June 17, 2018, 10:26:22 am »
I am very happy with  this setup. The rear bearing issue was going to be the make or break point on whether I kept the vw. No issues in the snow and no more fiddling with worn out bearings!

Reply #6December 14, 2018, 07:37:48 pm

smutts

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Re: MK2 rear Cartridge Bearing upgrade UPDATED
« Reply #6 on: December 14, 2018, 07:37:48 pm »
I wish I had seen this years ago for my  Mk2 Golf GTD. I hated that 1974 vintage bearing set up. Never seemed to get better than 30,000 miles, no matter what I did. ;D

Reply #7February 12, 2020, 07:41:27 am

phonkamumblefore

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Re: MK2 rear Cartridge Bearing upgrade UPDATED
« Reply #7 on: February 12, 2020, 07:41:27 am »
Late to the party.

I incorporated this upgrade into a rear suspension rebuild performed just last year on a Caddy project. Used the Caddy OEM backing plates, brake shoes, and hardware with the Polo stub axle, wheel bearing hub, and brake drum. All parts fit together as though it was part of the original design. Works well. One less maintenance item to be concerned with.

When I looked into doing this upgrade, it seemed that there was one other possible option to considered. The MK2 Caddy 9K Panel van has very similar 4 X 100 wheel hub bearing setup as the 6N2 Polo. In fact I asked a UK vendor I know to compare the wheel bearing hubs of the MK2 Caddy and the 6N2 Polo. The vendor stated they were exactly the same except externally for the axle diameter, which is 30mm. MK2 Caddy uses same stub axle as MK4 Golf/Jetta. I ended up not experimenting with this mix of parts and instead went with the ‘proven’ Polo 6N2 setup. If someone else is looking to do this upgrade they may want to consider experimenting with the MK2 Caddy wheel bearing hub, Mk4 stub axle, and Polo 6N2 brake drum.

MK2 Caddy wheel bearing hub part number - 6K9501477

Reply #8March 15, 2020, 12:03:54 pm

srgtlord

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Re: MK2 rear Cartridge Bearing upgrade UPDATED
« Reply #8 on: March 15, 2020, 12:03:54 pm »
The mk2 caddy/ mk4 golf/jetta rear stub is not the same bolt pattern to the beam unfortunately  :(

 

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