Does anyone know about Z'ing the frame on a 73-91 burban?????????????????????????????

I have a 79 and I want to know if anyone ever Z'd the frame and if yes, what needs to be done? Meaning, steering rod, transmission, hoses, ect... Is it a headache??? I was told that U dont have to Z the frame by Haggard fab...

i cant tell ya how much work it is..but i know those things pretty much lay pinch when you Z them

i dont know for sure when it comes to suburbans but just about every other chevy truck needs to be z'd in order to lay flat. i would think that you pretty much run into the same problems on every z too, again im not positive. As with anything else, every truck may have its own set of problems pending on what parts youre running. if you find out you need to z it, look at other chevy trucks with similar years/models there is plenty of information here on those types. good luck!

if you dont Z the frame then you must raise the front crossmember but you have to do one or the other to lay frame if it is a half ton

i just need to know exactly what i am getting into... what about raising the crossmember? is it difficult?

Edited: 11/15/2008 2:13:42 PM by DragaDodge

i dont know of any thread with detailed pics of raising the front cross member but here is a link to a good thread of a Zhttp://streetsourcemag.com/forum/topic.aspx?topic_id=97789&Topic_title=The+Story+So+Far...baggin'+an+87&forum_id=14&forum_title=Full+Size+Truckin+General

another option is the drop member from porter built customs(i think thats there name) any whoo its a bolt in front cross member. the only drawback is, its pricey, but nice to say the least.

look at my profile there is some pics of it getting z'd by keef

Thorbecke Bros.has a sectioned crossmember now also for a lot less than the porter built.You run into all kinds of issues when you Z the frme on these trucks.You will need to get new steering shafts and some U joints either route you take.The new crossmember is definately the better route.

Its the same front clip as any other GM fullsize truck from 73-87

I did a Z and a cut off of the lowest part of the frame on an 86. Pics and a tech article on the site.

www.dallashotrodparts.com/1986chevy.html

Thanks thats alot of help... I am a taking the car to a shop to get it done, but bc of the amount of work I was told I shouldnt z the front... Just trying to figure out what to do!