| Author | Message | ||
     Geoff Wootton Grand Master Username: dounraey Post Number: 1761 Registered: 5-2012 |
Hi Folks I have seen many references to using Jaguar XJ6 series 2 front disk pads (part no. MKD135) as substitute replacements for rear brake pads on the Silver Shadow. I am not averse to using substitute parts, as long as they do not change the character of the car and are easily reversible. For me, the XJ6 brake pads tick both boxes. Also, since these pads are designed to withstand the forces on the front brakes of a 120 MPH, 1.9 ton car, I figured they would easily be safe enough for the rear brakes of the Rolls. So, I bought some over the counter at Autozone for $20, saving a 2 week wait and 80 bucks. However, what was billed as minor fettling to get the Jaguar pads to fit is starting to look like major modification. I was hoping all that would be required would be to file a millimeter or so off each side of the pad. That's not quite so. I thought I'd put up the following pics so anyone reading this can make up their own mind about whether they would use these pads, and also for any views on the safety aspects of the required modification. You will see that narrowing the pads not only means cutting through the friction material but also means the oblong holes for the caliper pins will become oblong slots i.e. unsupported at the outer edges. The red lines in the second pic obviously denote the cut lines required to reduce the width of the pads.    I'd appreciate any views/comments. Geoff | ||
| Geoff Wootton Grand Master Username: dounraey Post Number: 1762 Registered: 5-2012 |
I guess I should add the obvious answer is to just buy the correct pads. They will last 10 years and over that time frame the cost saving is negligible. This is what I now intend to do. However, the question remains - why not cut the Jaguar pads down. They should be as safe and perform as well as originals. Why Not? | ||
| Robert Noel Reddington Grand Master Username: bob_uk Post Number: 1502 Registered: 5-2015 |
I suggested jag pads as an alternative when Shadow ones aren't available. Its about an hours work to fettle the pads to fit. Using hacksaw various files and a study mounted fitters bench vice. Or buy a Jag XJ to fit the pads to.  | ||
| Geoff Wootton Grand Master Username: dounraey Post Number: 1763 Registered: 5-2012 |
Hi Bob Thanks for your reply. I was wondering if cutting through the friction material would weaken it in some way. Would it cause it to crumble or delaminate. I would guess not as it has to resist enormous forces on the disc/rotor, so it must be very tough. Geoff | ||
| Patrick Lockyer. Grand Master Username: pat_lockyer Post Number: 1478 Registered: 9-2004 |
Geoff IMO it is fraught with problems with twin caliper pistons. The pin pad locating holes will end up being slotted and allow the pads in time to tip also the noise will be something else. Some old listings of Ferodo and girling pads for the Shadow.  | ||
| Patrick Lockyer. Grand Master Username: pat_lockyer Post Number: 1479 Registered: 9-2004 |
I see that Mintex were suppliers for RR shadows my old stock. And for the rears to different part numbers on the pads.   | ||
| Geoff Wootton Grand Master Username: dounraey Post Number: 1764 Registered: 5-2012 |
Hi Patrick Thanks for putting up this info. I have had a good search for US suppliers (to save on postage etc) but in the end have decided to go with FS. There were some Ebay suppliers but I'd rather pay a little more for a trusted company. Geoff | ||
| gordon le feuvre Prolific User Username: triumph Post Number: 203 Registered: 7-2012 |
Can't remember why, but in '73/4? factory changed to "Mintex" pads as the name implies on edge pad. I think the older/different spec pads used to "leak" resin that stuck to disc causing rumble/vibration etc. Dealers were supplied with slave pads with sandpaper stuck on pad surface to fit and road test to clean discs. They only did one road test, then fit Mintex. What am I saying? Stick to original spec pads! | ||
| Robert Noel Reddington Grand Master Username: bob_uk Post Number: 1505 Registered: 5-2015 |
brake pads are easy to cut with a hacksaw it does not damage the lining. This get out of trouble idea also applies to other makes of cars where parts are difficult. However if pads are available then go for the correct ones. I think the genuine pads come with a fitting kit which is well worth having. |
