It sure is, the center hole and stud holes require slight mods, but they will
crack with hard use (racing).
With frequent inspection you can catch the cracks early and monitor them.
IF you can find OEM, I was looking awhile back and all that was available was
repro.
Glen
-----Original Message-----
From: John Styduhar <johnstydo at gmail.com>
To: fubog1 <fubog1 at aol.com>
Cc: Timothy Murphy <timmmurphh at gmail.com>; Triumph 'Friends of Triumph <fot
at autox.team.net>; ryan.murphy <ryan.murphy at fdlco.wi.gov>
Sent: Mon, Oct 23, 2017 12:40 pm
Subject: Re: [Fot] Supplier for Brake shoes for TR4
?The OEM Datsun Z finned aluminum drum is a nice retrofit. Several of the
racers and street enthusiasts have installed them. The conversion doesn't
require much modification. Lighter weight and cooler running that steel drums.
Like Triumph parts, the original Z drum is what you want, not the aftermarket
piece. Can be machined to 9.055" dia. Lot's of info in the FOT archive. ?
On Mon, Oct 23, 2017 at 7:37 AM, fubog1 via Fot <fot at autox.team.net> wrote:
As the drum gets thinner/closer to the regrind limit, it will have a tendency
to warp & get bell-shaped.
I can't explain the difference in the cost between the drums, but in my
experience the cheap drums/discs/etc are cheap for a reason, and not suitable
for hard use.
Glen
-----Original Message-----
From: timmmurphh--- via Fot <fot at autox.team.net>
To: fot <fot at autox.team.net>
Cc: ryan.murphy <ryan.murphy at fdlco.wi.gov>
Sent: Sun, Oct 22, 2017 7:59 pm
Subject: Re: [Fot] Supplier for Brake shoes for TR4
Thanks to all who replied regarding the brake shoes. I?ve ordered a set from
Ted Schumacher. The drums didn?t clean up with 0.025 removed from a side
(final size 9.050). It would take another 0.020 on a side to clean the drums
up making them 9.090 diameter. I think that is probably too much to take off
but I?m not sure. We have a set of original drums on a street car rear axle
that we could try and clean up or I can order some new ones. There seem to be
two type of drums available; $27 ones and $58 ones (Moss). Nothing in the
specs as to why the difference. Any input on drums would be appreciated.
Tim & Ryan Murphy
1961 TR4 #317 BRG
From: timmmurphh at gmail.com [mailto:timmmurphh at gmail.com]
Sent: Wednesday, October 18, 2017 11:32 AM
To: fot at autox.team.net
Cc: ryan.murphy at fdlco.wi.gov
Subject: Supplier for Brake shoes for TR4
The left rear brake shoe lining came off the shoe at Blackhawk Farms last
weekend. I am looking for suppliers for brake shoes with riveted linings as
the one that came off was a ?glued? lining. I?d also like to specify the
lining to use, the Carbotech linings whose pads we use and like on the front
discs. I?m also open to any suggestions about what to use for the rear brake
shoes. The above would just be my preference based on the latest experience.
I see Revington has competition shoes with ?Mintex 20? linings I think for
about $120 a set which appear to be rivited. Anyone with experience with these
brake shoes and linings?
Thanks in advance for any info you can provide.
Tim & Ryan Murphy
1961 TR4 #317 BRG
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