• 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

upgrading brakes on a MKVIII

Banjo

Yoda
Country flag
Offline
I was inspecting the master and booster on my ol MK VIII and realising that the piston and the bore are bad in the master, so that means a new master, or resleeving. Anyway, costing as much as it's gonna, I'm going to research using a modern split master and booster. I'm going to start by looking in the Eastwoood catalog to see what kind of "hot rod" kits they have.
I was wondering if anyone else has done this, and if so what did you use.
I'm also kind of thinking of trying to use MK IX disc brakes (at least on the front) how much is involved in doing that swap?
 
I've been expecting this post from you. Scary brake system isn't it? The early Shadows are the only ones I know that are more complicated. I converted a MKVIII to MKIX brakes a long time ago. I was not that hard but I had the parts car nearby. It was all bolt on as far as I remember. If you plan on driving the car frequently , then swap it to disc brakes. You will be glad you did. Converting it to a split system will be a trick. Maybe a version of a 4.2 E-type master/servo would work? I converted a 100S (yes a real one) to a split systen using a '66 Sprite master cylinder. You have a servo to consider , though. Keep us posted on how you do it.

Alan T
 
My current thought is to try to convert to front wheel discs. I'll leave the rears as drum as I don't have a MK IX sitting around to part out.
I'm looking to see what discs and calipers would work on the front with minimal fabrication.
as for the master/booster, there are 10+ pages of boosters on ebay. Many are universal types for street rods and such. It looks like I can get a brand new 7" dia.dual diaphragm booster with a dual circuit master for around $185. and If I get the one with a bracket for a mid 50 Ford truck it looks like it would bolt right up to where the master was bolted under the Jag (they both used a 3 bolt manual master)
Next is a trip to the junkyard to get some test units and try some setups.
My criteria is cost, ground clearance, and not having to irreversably change anything on the Jag.
I'll definatly keep you all informed.
 
Back
Top