Weird thing, but I have two sets of front discs, old and new-

 

 

The new ones were used for about a year on my NA (with TT brake conversion), but the hub on my transplant car isn't as deep, if you know what I mean, as the disc rubs against the inside of caliper, the the wheel jams against the caliper once bolted up.

 

The disc depths are different sizes -

 

24mm

 

 

 

29mm

 

 

 

I guess they changed the hub dimensions between 1990 and 1992.

 

 

So, I plan to put a 5mm spacer between the hub and the disc, does this sound ok, or a bad idea?

Edited May 5, 201411 yr by MasterCookieman

The hubs are the same between TT and NA, only the calipers are different on early non turbo`s, the exact problem your having is the same as when fitting TT discs with n/a calipers unless I am reading the thread wrong your fitting them to another zed which from all accounts must have non turbo calipers fitted.

 

Jeff TT

The hubs are the same between TT and NA, only the calipers are different on early non turbo`s, the exact problem your having is the same as when fitting TT discs with n/a calipers unless I am reading the thread wrong your fitting them to another zed which from all accounts must have non turbo calipers fitted.

 

Jeff TT

 

Well, that was my initial thought, as I encountered the 26mm NA caliper problem many years back when I changed the discs, and hense why I converted to 30mm TT calipers.

 

But the calipers which I've used in the rebuild, are 30mm, and are from the transplant TT shell, so everything is TT.

 

I even looked at the 'brake depot' site when I bought the discs originally, to see if anything different was listed pre 92, but apparently they're all the same.

 

I just don't get it.

 

So I figured a 5mm spacer, or even a 3mm spacer, would push the disc forward enough to clear the caliper -