Identify brake setup 510-70

[Hzack]

Trying to identify a front brake setup. Comes of a 510 -70 that has been previously rebuild.

CC on the caliper mount is approx 88-90mm.  

Below picture shows distance rotor and caliper mount.

 

[ggzilla]

Looks like the strut tube was shortened

 

ventilated disc rotors. 280ZX are 252 mm diameter

 

caliper mounting bolt pattern. Many Nissan/Datsun are 3.5" (88.9 mm) including Datsun A10/810 Nissan R31/S130, Toyota Hilux

On 7/5/2025 at 1:09 PM, Hzack said:

CC on the caliper mount is approx 88-90mm.  

 

[datzenmike]

280zx and 200sx are 89mm CC mount but it's not them. 200sx aren't vented. 

[ggzilla]

Perhaps custom brake setup with rotor from one vehicle, caliper from another. The caliper does not look like Datsun A10 (1978-1981 510) or S130 (280ZX) or S110 (200SX)

 

The strut looks like the adjustable coilover thread tube was welded on

[datzenmike]

Earliest vented rotor was 280zx ('79) and Maxima ('81) S12 200sx ('84) 720 ('83)

 

S10, A10, S110, B-210, 710, 610, 280z and 810 were non vented rotors. So that eliminates these calipers also.

[Hzack]

Yes it's weld on coilovers.

Probably made 20 years ago.

 

Can it be 240z spindle/hub?

 

The distance between the caliper fastening and the rotor is very large.

[datzenmike]

240z, 260z, and 280z spindle angles are different from all other Datsun spindle angles making camber adjustment pretty much impossible. I don't know this angle but all other Datsun angles are 10⁰. It's also not an S30 caliper or rotor as they were not vented. It's an odd duck for sure. 

[Hzack]

How can I determine which spindle/strut it is?

There is a stamp on the strut:

129-0.

[datzenmike]

The part number will be under the welded on coil over sleeve. 10 digit, the first 5 would start with 54302- ?????. The last 5 digits would help identify the supplier and vehicle application. The CC of the caliper bolts and if threaded or not would help but as mentioned several totally different struts used the same spacing.

[Hzack]

Caliper is threaded, no thread in spindle.

CC approx 89mm.

The spindle angle vs the strut is 10 degree.

 

 

[datzenmike]

Hole is M12 X 1.25 thread or just 12mm hole

 

280zx and Maxima strut has through bolts, not threaded and both 89mm C to C.

510 and A10 are threaded but bolt C to C spacing is 76mm and not 89mm

S110 200sx is both threaded hole and 89mm C to C mount. Not saying this is the strut, only that it fits what we know.

[Hzack]

Tried to measure a bit.

Found a matrix with different measurement and different car models.

Added my figures to the far right.

 

Can´t make heads or tails of the figures.

 

http://

[ggzilla]

@Hzack, what is the diameter of the rotor, and thickness of the rotor? Would probably be the easiest place to start, then possibly could match the hub, then the spindle

 

 

Also there are many brake swaps that use the rotor from one car and caliper from another

[datzenmike]

5 hours ago, Hzack said:

Tried to measure a bit.

Found a matrix with different measurement and different car models.

Added my figures to the far right.

 

Can´t make heads or tails of the figures.

 

http://

 

That's Byron's graph. He's a machinist on The 510 Realm, so those numbers are solid.