Coil over spring rate ?

I flipped my rear end on my 56 truck and I am not notching it so I am going to put some coil over shocks to give it a but more help so doesnt bottom out easy .I am not sure what spring weight I should get being that there just helper springs not the sole supports .
There is 250lb 350lb 450lb and 650 lb .

 

If you keep the original leaf springs and add coil overs your gonna have one rough ridin sumbitch ! Even if you go with the 250 s the shock mounts probably aren't strong enough

 

so another words go with the lightest rate avail

 

hard to know without knowing the weight of the vehicle , shock angle , etc

just so i understand..you flipped the rear end to the top side of the rear leaf springs , and now the rear end is too close to the underside of the frame rails. and now you want to add more spring so it doesn't go bang? why not just notch the frame?

 

Exactly and I want the bed to look stock so c notching will cut into bed .I know there was another guy who did this but I can find it now .

 

Why can't you just install stiffer leaf springs? or add a few leaves to your existing leaf springs??

 

i flipped a diff on a 57 chevy only put a 5" notch used a piece of round tubing as filler used the stock springs and bed

 

I dont see what the difference is since people put air shocks all the time .Isn't that the same idea to give the rear extra stiffness or lift ?

 

How about hydraulic bump stops like the off road guys use?

 

This is one of those deals where want you want can't be done without making concessions. If you want the truck to be lower AND you want a decent ride quality, you need to notch the frame or install an IRS. On the other hand, if you refuse to consider notching the frame, or alternate suspension style, you may need to accept either a harsh ride and/or 'bottoming out' for lack of clearance. Read my signature line.....it's not MY rule.....but it is THE rule.

 

That's a bad idea, too.

 

Factory shock mounts were not designed to carry weight.