4 inch lift
 

Hey guys so I'm brand new to this forum I have a 71 k20 really mint truck daily driven and it rides...well like a 71 k20 so I traded some old parts for a set of rancho 4 inch front springs so I ordered all new lift shocks stearing arm lift block and 2 inch rear blocks cuz my truck has some bad rake but the problem is I found out there 85 k5 blazer front springs witch I read are about 2 inches shorter. My question is will they work with my stock shackles or am I f*cked?

Re: 4 inch lift
 

I think that the 85 springs are longer not shorter. And they need to be the correct length.

My opinion, buy a complete lift designed to fit your truck with front and rear springs. It's expensive. And it's worth it.

Re: 4 inch lift
 

The 73 springs are longer. They require some work to fit but it has been done. There is a build thread on a big block blue suburban and he used 73 up springs

Re: 4 inch lift
 

You can use the '73-up springs if you move the rear mount back. By doing this you will gain another 2" of lift, due to the drop of the frame. It's either that or sell/buy or trade for 69-72

Re: 4 inch lift
 

Thanks yeah I did a little more seething on it I think I'm going to move my front spring mount fowerd about an inch or do and every thing should line right up I'm doing it in an idiot fab shop with my budy who can prity much make any thing so will figure it out

Re: 4 inch lift
 

Cool truck man :chevy:

Re: 4 inch lift
 

Thanks alot man

Re: 4 inch lift
 

Well after is settled a bit it came out to be about a 3 inch lift and with all the add a leafs the last owner put in the back it sits prity level I had to move the front spring mounts about an inch and a half fowerd and it put my axle right in the center and my shackles are sitting better and it rides a bit better I used tuff contrys 6000 ez ride 4 inch shocks ass well 35s are coming soon.