4 Inch Drop in rear, what's needed to do it right?

[Greasey Harley]

Originally Posted by Yamariv

Thanks Greasey Harley, super valuable info!! I was throwing around the HD lowering springs in the back idea so I could still use it as a truck. Awesome to hear from someone who has them. When I lower, I think I might go that way so that they match my front stock HD springs as I'll just be doing the spindles in the front.

Which HD rear springs did you use? I had found some but am having a hard time finding them again.

These are the rear springs I used:
https://www.classicperform.com/Store...ck/RCS603S.htm
https://www.classicperform.com/Cshop/cart.html
RCS6034 1960-72 rear 4 inch drop, pair $129.00

I used 2.5" drop spindles and -1" springs in the front. If you're interested, here's how my truck sets:
http://67-72chevytrucks.com/vboard/p...ictureid=26506

[Already Gone]

Originally Posted by Yamariv

That's a friggen beautiful truck Already Gone! That's an amazing offer and I'm totally up for a ride when the weather gets nice for sure. That would be great to see yours in the flesh and get a feel for how the stance is in person! Yours sits pretty much like mine does height wise. Mines got the heavy duty springs on the build sheet options though so I'm not sure how that would affect things if I kept the stock springs. I had 700lbs of insulation in the bed this morning and the truck barely squatted an inch lol.

I was originally going to do the drop right away while I do the brakes, suspension and shocks but I like the idea of holding off on the drop for a little bit and enjoying the truck while I do the rust work is a better way to go for this winter.

Front and back sway bars or is the front mostly the one worth doing?

Ugh, the tires question.. I have no idea yet. I really like the stock look or ralley wheels but I may go more custom and modern down the road once I eventually do the paint.

Most folks just do a front sway bar on their trucks as its a great upgrade especially for the price. I put a rear one on my truck ( pictured ) because I wanted to and for my usage of the truck really didn't need it. Check out this link from this site on front and rear sway bars. http://67-72chevytrucks.com/vboard/s...d.php?t=728503

[Yamariv]

Originally Posted by Greasey Harley

These are the rear springs I used:
https://www.classicperform.com/Store...ck/RCS603S.htm
https://www.classicperform.com/Cshop/cart.html
RCS6034 1960-72 rear 4 inch drop, pair $129.00

I used 2.5" drop spindles and -1" springs in the front. If you're interested, here's how my truck sets:
http://67-72chevytrucks.com/vboard/p...ictureid=26506

Pic won't come up unfortunately

[Yamariv]

Originally Posted by Already Gone

Most folks just do a front sway bar on their trucks as its a great upgrade especially for the price. I put a rear one on my truck ( pictured ) because I wanted to and for my usage of the truck really didn't need it. Check out this link from this site on front and rear sway bars. http://67-72chevytrucks.com/vboard/s...d.php?t=728503

Thanks for the link! Looks like a front is a must and the rear is debated..

[Accelo]

The front is heavy and the motor moves the center of gravity up. I like the front sway bars for these reasons. I have a rear sway-bar and am going to remove it to see if I can get my truck to track straight when the tires are spinning. It becomes a handful fast and I am not really sure why. So I agree, the rear one is not really needed.

You should re-shim the rear to correct the spindle angle when lowering the trailing arm trucks.

When I lowered my truck 4 inches, I avoided the re-shimming by moving the front of the trailing arms up. I did this by turning the brackets, at the forward attachment points, upside down. Drilled out the rivets and used bolts to reattach the bracket. I may have had to re-drill two holes, that I can't remember for sure. I confirmed the u-joint angles, after lowering, and it was withing GM tolerances. I wish I could get pictures but not possible right now.

The aftermarket rear cross-members do the same thing, raise the attachment points. I really couldn't see any advantage, to the aftermarket part, over what I did. Allegedly, it retains the anti-squat built into the factory geometry.
Cheers

[67C10Step]

Another 4” static drop here. Progressive rate 4” drop springs, new spring retainer hardware, new U bolts, shock relocation kit, adjustable trac bar, and drop shocks. Sounds like a lot but it goes together pretty quick and easy.