Has anybody put a full set, front and rear, King brand lowering springs on their XJ6? The Aston Martin DB7 set certainly has the right stance but I can't seem to nail down the proper part numbers and I can't find anything on the rears. About ready to move on and just get the King set if there are good experiences here with them. Just an FYI... Don't get the Woodhead set if you want a lower rear stance. Cheap yes, they work but they probably sit a half inch higher in the rear than normal. I'll guess I'll get the Kings and move these on at some point. Opinions or suggestions would be appreciated. Car is a '75 XJc with an sbc/700r4.

So the DB7 front springs are pt number AML 23-122208-BC but the other number Eibach 41/99 or 23/02 bugs me. Is there a difference?

 

Also, is the 00 to 04 db7 vantage what I'm looking for? Or is the db7 GT different and the base Vantage pretty much the same as the XJS? Also, are the rear shocks and springs for the db7/XJS shorter than the stock XJC? Sorry for all the questions but my ADD is worse than it used to be and I'm struggling. I don't want to spend money and time and end up with the same result as stock XJC. Another note, after pulling all the front spring spacers I got a noticeable drop in height (not enough) and lots of neg camber that mostly corrected after re-adjusting the toe in, but I'm about at the limit to add positive camber, ie. no shims. is this normal? Not too worried yet as nothing is dialed in but is eyeballed and drives pretty good exe for all kinds of mechanical noise from the front suspension now, that I'm attributing to the new ride height, worn parts and no spring pads. The complete front crossmember and suspension will come out for powder coating and painting and bushings as soon as I get springs and parts working properly. Again any help would be appreciated.

 

As a follow up, I gambled on a rear set of shocks and springs used from a db7 conv. At least they're bilstein shocks, better than what I have and the price was right. Tried to order the front King springs but seems to be a problem with card transactions in AU today so I'll try again later. My dd truck will occupy my lift this weekend with a steering rack change and a couple other things to tidy up, then I'll be dropping the front subframe on the coupe. Already have new calipers, hoses and rotors, a db7 sport rack, and all the rest will be rebuilt. Parts will be blasted and powder coated or painted, I haven't decided yet. Epoxy/AG111 is tough and more impervious to solvents (preferable) than powder coat but more work for me so...
Bill

 

If you are at the limit of being able to reduce negative camber, quite possible on the factory setup if the ride height is lowered, then you can safely machine a bit off the outer face of the fulcrum pin. I had to do this when I fitted a brand new subframe that, I suppose, was slightly out of standard tolerance.


FWIW, I do not think adjusting the toe on the factory suspension can affect camber.

 

Good idea Greg, thanks. I don't think so either on camber, it's just when I pulled all the spring pads and put it back on the ground the ride height had dropped considerably, the toe was way out and camber was really heavy to negative. There was no room to bring the camber back out and I got worried but I also knew the car had never been in an accident so I figured I'd bring the toe back in close first. When I did, camber looked much more normal, still a little neg but driveable, might have been optical illusion as much as anything. All that said, I think it's due to worn ball joints and other parts being in another position without the spring pads. I think I'll go ahead and replace the ball joints and see if camber adjustment improves, then when I drop the subframe I'll have a opportunity to possibly jack the towers out a tiny bit before I take it all apart. I think I have another pair of fulcrum pins, I think I'll go have a few thou taken off just in case.

 

Another follow up. Finally got a cc to go through with the king springs and a few days later they message me to say they sold the last set a few days prior and the next batch eta will be middle of Mar. I said fine, please let me know and ship when back in stock. I'll need that much time at least to get the front suspension apart and dealt with. These are supposed to be progressive wound, lowered springs specifically for the sbc conversions, if not I'll be disappointed.

 

Well another check on the King front springs finds that they are not progressive wound. They do have some for newer models that are so that's probably where I got confused. I still elected to keep the order and will wait for them to come in mid- march.
In the mean time, I swapped the DB7 rear springs and shocks in yesterday, drove it today and they seem like an improvement. Definitely stiffer than the Woodheads and sit maybe 3/4 inch lower, but this is from eyeballing it, I didn't measure before making the swap. It does however sit about the same as the factory '86 I have using the hand between the tire and lip method. It feels good though, so now time to drop the front suspension and carry on.