944T Rear Brembos on an 84NA hub/disk

[pantswagen]

OH i seeeeeeeee

http://www.speedways.co.uk/apec/list/porsche/11.htm

-the 996 disc although 299 and 24mm, is 75mm overall height!!!

hmmm -does it still work ok?

-got adaptrs for 996 rear calipers/???
-no i am worried they wont work

[pantswagen]

i'm confusing myself now
-the 85 disc is 298 by 28mm -70mm high
-so the thinner-24mm disc

--must just get 1

[flat]

944T rear - 299x24
Boster rear - 292x20
Bosxter 's' rear - 299x24

With the 944T rear rotor on a 944NA rear setup, you need a 3mm spacer and longer caliper bolts. With the Boxster S rotor, you don't need the spacers. Both rotors will work with the 944T rear caliper and the 944NA brake shoes and hardware.

Lanner

[Syncronaut]

According to this:

http://www.speedways.co.uk/apec/list/porsche/13.htm

there are two different "overall heights" on the rear discs for the Boxster S (68 mm and 75 mm). Which type is the correct one?

--
Gorm

[flat]

The Boxster S rotor that I mocked up and works with the early NA backing plate is pn:986.352.403. The brakes shoes end up 'just' flush with the 'drum' surface (laterally speaking). No spacers are required to centralize the caliper.

The 86T rotor is 951.352.041. You will need 3mm shims and longer bolts to centralize the caliper.

As a shameless plug , I now offer hardened washers and longer grade 10.9 bolts for the job. About $C18.

Lanner

[Syncronaut]

Thanks Lanner,

I will go for the Boxster S rotors...

Gorm

[flat]

One other thing, with the Boxster S rotors, the disk-to-hub retaining screws don't line up. Also, last time I checked the Boxster S rotor was about double the cost of a 86T.


Lanner