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  View original topic: T3 rear drums
berpsta Thu Apr 02, 2015 10:50 am

Hi guys I've currently got my gearbox out after having some repairs and while its out in considering converting to T3 rear brakes. The drums look like the braking surface could do with a skim to remove the ridges caused by the wear of the brake pads what kind of outer wall thickness on the drums is considered acceptable before the drums are scrap?

Cheers in advance

Sean

easy e Thu Apr 02, 2015 11:30 am

Drum acceptability is determined by inner diameter, instead of wall thickness.

Looks like 4th page into this doc has answers... edit: it's for 4x130.

http://www.luftvolks.com/tech/b%20brakes/3%20-%20Technical_Data_Maintenance.pdf

Erik G Thu Apr 02, 2015 11:47 am

easy e wrote: Drum acceptability is determined by inner diameter, instead of wall thickness.

Looks like 4th page into this doc has answers... edit: it's for 4x130.

http://www.luftvolks.com/tech/b%20brakes/3%20-%20Technical_Data_Maintenance.pdf

yep - it's late. BUT - which drums do you have, are they wide 5 pinwheels, or a wide 5 that looks like a flower? I ask because the flower looking one is more popular for the lowered bus, and the 4x130 and 5x205 drums (flower) use the same rear shoes and rear wheel cylinder

so, in theory - the wear limit will be the same as what's listed in that book

easy e Thu Apr 02, 2015 12:15 pm

If yours are wide five... and toast... and nothing in-spec used available...
EMPI 98-5007-B = VW 311-501-615E



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