hi, first post-was looking at my 68 rs and it has the extended shackles to raise the rear (old school) looking to redo and was wondering if you can lower the rear by redrilling holes, closer together than stock. It seems to me if you can raise the vehicle with longer shackles you should be able to lower it more than stock with shorter shackles. Anyone done this, or any reason you can think of to not do it. a lot less expensive than buying lowerd rear springs, by the way, its a multi-leaf setup with the L30 (327-275 hp) muncie m-20. thanks for any info guys.

The stock size shackles are really as short as they can be without the suspension binding up. Any shorter and the rear spring eyes would hit the frame.

Why not try a new set of stock shackles and see where that leaves it?

If it's still too high, you can use lowering blocks between the spring and the perch on the axle to lower it maybe another inch.

thanks JimM, i was thinking there might be suspension geometry problem doing this, which is something i wanted to avoid. thanks for the info.

yeah if you dont have the money for totally new lowering springs from ...say hotchkis, eaton, global west, guldstrand, dse or what ever then use lowering blocks i did whil i was saving up for my springs..they look great and are easy to install and are 30 bucks what better deal...i wouldnt go any more that 1.5" summit has them in the truck section for about 30 dollers...then i would get the stock shakles

I would agree with the above. Just dont go putting a huge 3" block in to lower it or you will get MAJOR spring wrap up issues. Maybe you have somewhere local that can de-arch the springs you have?

Randy