Can you find the vibration??? - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

*2tons of fun* · 11-10-2009, 02:20 AM

or 80-90

you can run whatever you want, the atf isnt supposed to be as protective fo rthe gears but it was spec'd in dodges.

Oilbrnr · 11-10-2009, 04:31 PM

Has the pinion angle been ruled out yet?

powerdriver 1958 · 11-10-2009, 08:13 PM

Is there a chance that the front driveline is engaged with the hubs turned to unlock? that will make it vibrate.Ummm don't ask how I know that.

Gmelahn · 11-11-2009, 03:29 AM

Quote:

Originally Posted by Oilbrnr

Has the pinion angle been ruled out yet?

No it hasn't. I need to take the truck to the driveline shop and have them look at it.

Rack Man · 11-10-2009, 06:50 PM

Your speedo cable is enetering in the same position as mine on the drivers side

OrrieG · 11-10-2009, 07:49 PM

In late but is that cross member really only held in with one bolt in the photo at post 6? Don't know if that would cause your problem (maybe the cluck) but definatley not good. Factory came with 4 bolts per side, two each on the top and bottom rails. There is a lot of weight on that single 3/8" bolt.

Gmelahn · 11-11-2009, 03:31 AM

Quote:

Originally Posted by OrrieG

In late but is that cross member really only held in with one bolt in the photo at post 6? Don't know if that would cause your problem (maybe the cluck) but definatley not good. Factory came with 4 bolts per side, two each on the top and bottom rails. There is a lot of weight on that single 3/8" bolt.

It currently has two bolts per side. You say it needs four huh? Ill have to see how that works.

OrrieG · 11-12-2009, 02:12 AM

Quote:

Originally Posted by Gmelahn

It currently has two bolts per side. You say it needs four huh? Ill have to see how that works.

No, two per side should work, I was thinking if there was only one the support might be rocking.

Gmelahn · 11-13-2009, 09:48 PM

So, I found out that the cab of my truck is a 2wd cab, the 2wd hump was cut out and retro fitted with a 4wd hump. Although this modification was done the transfer case was hitting the underside on the bed which led me to question the crossmember. After measuring the crossmember on my truck against a stock 4wd crossmember I found mine was an inch and a quarter short. I fabricated a spacer and fitted to the truck today, the vibration is significantly less noticeable. Almost not at all! I would say problem solved. There was also a broken motor motor mount, which was replaced today also.

Question though....

where can I find a 4x4 crossmember???

And thank you everyone for sharing your knowledge.

11-10-2009, 02:20 AM	#1
2tons of fun Account Suspended Join Date: Jan 2009 Location: galt ca, Posts: 749	Re: Can you find the vibration??? or 80-90 you can run whatever you want, the atf isnt supposed to be as protective fo rthe gears but it was spec'd in dodges.

11-10-2009, 04:31 PM	#2
Oilbrnr Registered User Join Date: Feb 2009 Location: Scottsdale, AZ Posts: 390	Re: Can you find the vibration??? Has the pinion angle been ruled out yet? __________________ -Don- '66 C10 w/factory A/C '77 Cheyenne K5 350/465/205 '80 Custom Deluxe K20 350/465/205 '04 Denali XL '05 DMax CCLB 4x Have a Hickey Sidewinder Winch and need the owners/install manual? Send me a PM with your email address and I'll forward you a .pdf

11-10-2009, 08:13 PM	#3
powerdriver 1958 Kid's Mechanic Join Date: Nov 2006 Location: Kansas City Posts: 8,241	Re: Can you find the vibration??? Is there a chance that the front driveline is engaged with the hubs turned to unlock? that will make it vibrate.Ummm don't ask how I know that. Last edited by powerdriver 1958; 11-10-2009 at 08:16 PM.

11-10-2009, 06:50 PM	#5
Rack Man Registered User Join Date: Sep 2008 Location: Tempe, AZ Posts: 770	Re: Can you find the vibration??? Your speedo cable is enetering in the same position as mine on the drivers side __________________ My Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=309288 Last edited by Rack Man; 11-10-2009 at 06:51 PM.

11-10-2009, 07:49 PM	#6
OrrieG Registered User Join Date: Jun 2006 Location: Idaho Posts: 8,800	Re: Can you find the vibration??? In late but is that cross member really only held in with one bolt in the photo at post 6? Don't know if that would cause your problem (maybe the cluck) but definatley not good. Factory came with 4 bolts per side, two each on the top and bottom rails. There is a lot of weight on that single 3/8" bolt. __________________ 1959 Chevy Short Fleetside w/ 74 4WD drive train (current project) OrrieG Build Thread 1964 Chevelle Malibu w/ 355-350TH (daily driver) Helpful AD and TF Manual Site Old Car Manual Project

11-13-2009, 09:48 PM	#9
Gmelahn Registered User Join Date: Aug 2009 Location: Auburn, CA Posts: 21	Re: Can you find the vibration??? So, I found out that the cab of my truck is a 2wd cab, the 2wd hump was cut out and retro fitted with a 4wd hump. Although this modification was done the transfer case was hitting the underside on the bed which led me to question the crossmember. After measuring the crossmember on my truck against a stock 4wd crossmember I found mine was an inch and a quarter short. I fabricated a spacer and fitted to the truck today, the vibration is significantly less noticeable. Almost not at all! I would say problem solved. There was also a broken motor motor mount, which was replaced today also. Question though.... where can I find a 4x4 crossmember??? And thank you everyone for sharing your knowledge.

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