• Hi Guest!
    You can help ensure that British Car Forum (BCF) continues to provide a great place to engage in the British car hobby! If you find BCF a beneficial community, please consider supporting our efforts with a subscription.
    There are some perks with a member upgrade!
    **Upgrade Now**
    (PS: Subscribers don't see this gawd-aweful banner
Tips
Tips

Difference between MK IX and XK 150 Front Brakes?

Share this page

M

Michael J.

Jedi Warrior
Offline
Parts listings reference MK IX and XK 150 front brakes as different.

Everything else about the front suspension pieces seem to be the same.

What is different?

Rotor Diameter? Piston size? Would XK 150 calipers fit a MK IX?
 
Since the MKIX is a heavier car the XK 150 brakes would never stop it.What is you question in the first place? If you need MK IX brakes all you have to do is ask as I kept all of them from parts cars from 30 years ago.The offset of the rotor and the calipers are different.
bobsyouruncle.
 
Re: Difference between MK IX and XK 150 Front Brak

"She's Still a Hula Girl at Heart".
 
Re: Difference between MK IX and XK 150 Front Brak

MK VII and MKVIII also are listed as different from MK IX.Early MK VII apparently had 2 1/8 piston on first 1500 cars. What size piston is used on the MK VIII and MK IX?

I'm still trying to figure out just what is on this car.
 
Re: Difference between MK IX and XK 150 Front Brak

MKVII and MKVIII are drum brake cars with a Clayton Dewandre servo. MKIX's use Dunlop calipers with a Lockheed servo. IIRC, fronts are 2 1/2" and rears are 1 7/8". Front disc pads on the IX are larger than 150 and rears are the same.

Alan T
 
Re: Difference between MK IX and XK 150 Front Brak

Thanks! That clears up a lot! What is the differnce in rotor Diameters?
 
Re: Difference between MK IX and XK 150 Front Brak

This is all from memory until I can put my hands on my NOS MKIX rotors , but as I recall the diameter is the same but the thickness is about .125 larger.

Alan T
 
Back
Top