How Low - The 1947 - Present Chevrolet & GMC Truck Message Board Network

roofingbloke · 04-02-2011, 09:57 AM

Hi All. A quick question for you all.

? how far off the floor will the center of the stock crossmember be with stock controlll arms and bags aired out,

*Shane* · 04-02-2011, 10:10 AM

... depends on the size of the tire on the vehicle ...

roofingbloke · 04-02-2011, 10:26 AM

18 x 7 with 40 series tyres,

Curently got 15s but scuff line is 2 " lower than rims, (not good)

**N2TRUX** · 04-02-2011, 11:59 AM

There are so many variables its hard to give you a specific answer. What I can show you is what will happen if there are no fender liners in the way, and you are running a 3" spindle with short cups.

Its hard to tell with the shadows, but the "crossmember" is 3/4"-1" off the ground. The A-arms are resting on the ground hard.

broey · 04-02-2011, 09:54 PM

that would probably be the lowest you could get with stock control arms and stock crossmemeber right?

hotrodhomi · 04-02-2011, 10:10 PM

Quote:

Originally Posted by broey

that would probably be the lowest you could get with stock control arms and stock crossmemeber right?

unless you bodydrop or Z.

**N2TRUX** · 04-02-2011, 11:58 PM

Quote:

Originally Posted by broey

that would probably be the lowest you could get with stock control arms and stock crossmember right?

Quote:

Originally Posted by hotrodhomi

unless you bodydrop or Z.

Yes, the A-arms are on the ground "hard" at this point. Your not going any lower with out cutting some steel.

broey · 04-03-2011, 01:10 AM

Quote:

Originally Posted by N2TRUX

Yes, the A-arms are on the ground "hard" at this point. Your not going any lower with out cutting some steel.

yeah thats what it looked.

broey · 04-03-2011, 01:12 AM

Quote:

Originally Posted by hotrodhomi

unless you bodydrop or Z.

yeah, I just meant in this exact situation.

roofingbloke · 04-03-2011, 03:33 AM

I have looked into z ing on a small scale. but there seems to be lots of very different opinions,

**N2TRUX** · 04-03-2011, 11:21 AM

Quote:

Originally Posted by roofingbloke

I have looked into z ing on a small scale. but there seems to be lots of very different opinions,

There is nothing wrong with a frame Z IF, and thats a BIG if, it is done correctly. I always hesitate to recommend a Z simply because most of them I have seen done were marginal at best.

Making an angle cut is probably the best starting point. From there, extensive boxing and plating done be a competent welder should be your first priority.

Maybe we can get lakeroadster to do an analysis of the best way to reinforce a Z.

SCOTI · 04-03-2011, 02:17 PM

Quote:

Originally Posted by N2TRUX

There is nothing wrong with a frame Z IF, and thats a BIG if, it is done correctly. I always hesitate to recommend a Z simply because most of them I have seen done were marginal at best.

Making an angle cut is probably the best starting point. From there, extensive boxing and plating done be a competent welder should be your first priority.

Maybe we can get lakeroadster to do an analysis of the best way to reinforce a Z.

I believe he's 'retired' from structural analysis on the board because of possible litigation concerns should something go wrong.

roofingbloke · 04-04-2011, 02:23 AM

I have looked into doing a Z, but what do you do with the front fender/bumper mounting points etc etc,

SCOTI · 04-04-2011, 10:06 AM

Quote:

Originally Posted by roofingbloke

I have looked into doing a Z, but what do you do with the front fender/bumper mounting points etc etc,

Basically, they have to be dropped (Z'd) back down what ever amount the suspension pivot points were raised.

04-02-2011, 09:57 AM	#1
roofingbloke Registered User Join Date: Apr 2009 Location: swindon, england Posts: 290	How Low Hi All. A quick question for you all. ? how far off the floor will the center of the stock crossmember be with stock controlll arms and bags aired out,

04-02-2011, 10:10 AM	#2
Shane Account Suspended Join Date: Jun 2000 Location: over yonder Posts: 14,270	Re: How Low ... depends on the size of the tire on the vehicle ... Last edited by Shane; 04-02-2011 at 10:10 AM.

04-02-2011, 10:26 AM	#3
roofingbloke Registered User Join Date: Apr 2009 Location: swindon, england Posts: 290	Re: How Low 18 x 7 with 40 series tyres, Curently got 15s but scuff line is 2 " lower than rims, (not good)

04-02-2011, 11:59 AM	#4
N2TRUX Happy to be here Join Date: Mar 2000 Location: Cypress, TX Posts: 39,021	Re: How Low There are so many variables its hard to give you a specific answer. What I can show you is what will happen if there are no fender liners in the way, and you are running a 3" spindle with short cups. Its hard to tell with the shadows, but the "crossmember" is 3/4"-1" off the ground. The A-arms are resting on the ground hard. Attached Images __________________ Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra" Last edited by N2TRUX; 04-02-2011 at 12:00 PM.

04-02-2011, 09:54 PM	#5
broey Square Join Date: Feb 2011 Location: Phoenix Arizona Posts: 1,568	Re: How Low that would probably be the lowest you could get with stock control arms and stock crossmemeber right? __________________ Squarebody Syndicate

04-03-2011, 03:33 AM	#10
roofingbloke Registered User Join Date: Apr 2009 Location: swindon, england Posts: 290	Re: How Low I have looked into z ing on a small scale. but there seems to be lots of very different opinions,

04-04-2011, 02:23 AM	#13
roofingbloke Registered User Join Date: Apr 2009 Location: swindon, england Posts: 290	Re: How Low I have looked into doing a Z, but what do you do with the front fender/bumper mounting points etc etc,



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.