Z'ed tranny crossmember - The 1947 - Present Chevrolet & GMC Truck Message Board Network

grnddwn · 12-09-2004, 04:44 PM

Here's our new tranny crossmember for 2" Z'ed frames

phantom dually · 12-09-2004, 06:53 PM

Nice looking piece but I would think it needs a little more support to keep the frame rails from flexing. Kinda like the factory unit which bolts top and bottom of the frame rails.

BaggedC10 · 12-09-2004, 09:12 PM

Quote:

Originally Posted by phantom dually

Nice looking piece but I would think it needs a little more support to keep the frame rails from flexing. Kinda like the factory unit which bolts top and bottom of the frame rails.

I agree.

I would prefer the X-member be one solid piece of round tubing and I would not retain the factory ends. The ends looked too "tacked on". A one peice mandrel bent piece would be sweet.

JMO.

grnddwn · 12-09-2004, 10:25 PM

Those aren't the factory ends they are actually laser cut for one of our other trans cross members. Unfortunately the pictures don't really do it justice

Shev · 12-09-2004, 11:12 PM

Any particular reason it's not a solid piece of tubing (my guess possibly it was that way just for R&D)

BK · 12-10-2004, 02:32 AM

excuse me if im wrong, but wouldnt the u-joint between the yoke and the driveshaft take up most of the angle between the tranny and rear end?

smokekiki · 12-10-2004, 09:22 AM

Quote:

Originally Posted by DroppedChoppedPanel

excuse me if im wrong, but wouldnt the u-joint between the yoke and the driveshaft take up most of the angle between the tranny and rear end?

When he z'ed the frame it moved the motor mounts and motor up 2".It would be a big angle if You used the stock trans mount.Plus it tucks it up out of the way.

BK · 12-10-2004, 12:29 PM

how far below the frame did the original auto x-members hang? Im wondering, as i plan to z my frame in the next week or two, and i currently have an ECE auto tranny crossmember which is totally out of the way, doesnt hang down at all. THanks.

72MARIO · 12-10-2004, 01:55 PM

DroppedChoppedPanel

Just incase you don't know. You tranny and the diffirential should be within 3 degrees of eachother.

corn · 12-12-2004, 12:26 PM

I wouldnt worry as much about the trans output shaft angle as I would with the pinion angle. Take a look at any lifted 4X4 out there, they are WAY off. Heres the x-member I did for mine but Ive now changed it a little(raised 1 1/2")...corn

72MARIO · 12-12-2004, 03:16 PM

Quote:

Take a look at any lifted 4X4 out there, they are WAY off

That does not make it right.... How often does a lifted 4x4 see speeds of 100 km + ? Not very often and I am sure it's not a smooth ride . Incorrect pinion angle will lead to vibirations and premature u-joint wear. I am sure that [/B]grnddwn[B] is well aware of that though.

grnddwn · 12-13-2004, 11:01 AM

Yeah this isn't our first trip the the store. You will find with bagged trucks that there are alot of variables with driveline angle that have to be compensated for.

BK · 12-19-2004, 02:11 AM

i have the ECE auto tranny crossmember, and i was wondering if i just flipped it over would that work for a 4" z, or if i sunk it into the crossmember a little that should work right?

12-09-2004, 04:44 PM	#1
grnddwn belly dragger Join Date: Feb 2002 Location: sherwood park AB. Canada Posts: 694	Z'ed tranny crossmember Here's our new tranny crossmember for 2" Z'ed frames Attached Images

12-09-2004, 06:53 PM	#2
phantom dually Project92 SWB stepside Join Date: Feb 2003 Location: Louisville KY Posts: 4,792	Nice looking piece but I would think it needs a little more support to keep the frame rails from flexing. Kinda like the factory unit which bolts top and bottom of the frame rails. __________________ 92 C1500 stepside 496 Stroker Competiton Engineering Ladder bars/QA1 coilovers. Dana 60 rear with 4.10 gear and posi. Bonspeed Palisade 20x12 in rear w/335/30/20 and 20x8.5 front w/245/40/20. 5/8 drop with Belltech springs/DJM spindles/drop shocks. WWS Progress thread http://67-72chevytrucks.com/vboard/s...d.php?t=140448

12-09-2004, 11:12 PM	#5
Shev Head Peon Join Date: Dec 1999 Location: Imlay City MI Posts: 295	Any particular reason it's not a solid piece of tubing (my guess possibly it was that way just for R&D) __________________ '72 Suburban, factory tilt, tach, front & rear AC, front & rear disc brakes, 383/700-R4 Last edited by Shev; 12-10-2004 at 08:26 AM.

12-10-2004, 01:55 PM	#9
72MARIO Registered User Join Date: Nov 2000 Location: Huntsville Ontario Canada Posts: 4,051	DroppedChoppedPanel Just incase you don't know. You tranny and the diffirential should be within 3 degrees of eachother. __________________ 1968 Suburban numbers matching all original truck now equipped with 6.0/4L80 on Accuair http://67-72chevytrucks.com/vboard/s...d.php?t=625017 1967 C/20 6.0/4L80 Roofing Truck 1990 V2500 Suburban "Plow Truck" 2005 TAHOE DD

12-12-2004, 12:26 PM	#10
corn Registered User Join Date: Dec 2003 Location: here Posts: 5,789	I wouldnt worry as much about the trans output shaft angle as I would with the pinion angle. Take a look at any lifted 4X4 out there, they are WAY off. Heres the x-member I did for mine but Ive now changed it a little(raised 1 1/2")...corn Last edited by corn; 09-16-2007 at 06:47 PM.

12-09-2004, 10:25 PM	#4
grnddwn belly dragger Join Date: Feb 2002 Location: sherwood park AB. Canada Posts: 694	Those aren't the factory ends they are actually laser cut for one of our other trans cross members. Unfortunately the pictures don't really do it justice

12-10-2004, 02:32 AM	#6
BK BK Built Join Date: Aug 2004 Location: Oroville, WA Posts: 478	excuse me if im wrong, but wouldnt the u-joint between the yoke and the driveshaft take up most of the angle between the tranny and rear end?

12-10-2004, 12:29 PM	#8
BK BK Built Join Date: Aug 2004 Location: Oroville, WA Posts: 478	how far below the frame did the original auto x-members hang? Im wondering, as i plan to z my frame in the next week or two, and i currently have an ECE auto tranny crossmember which is totally out of the way, doesnt hang down at all. THanks.

12-13-2004, 11:01 AM	#12
grnddwn belly dragger Join Date: Feb 2002 Location: sherwood park AB. Canada Posts: 694	Yeah this isn't our first trip the the store. You will find with bagged trucks that there are alot of variables with driveline angle that have to be compensated for.

12-19-2004, 02:11 AM	#13
BK BK Built Join Date: Aug 2004 Location: Oroville, WA Posts: 478	i have the ECE auto tranny crossmember, and i was wondering if i just flipped it over would that work for a 4" z, or if i sunk it into the crossmember a little that should work right?

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