Lower cross shaft adjustment?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

steves1967 · 06-30-2013, 08:21 PM

I'm in the process of rebuilding my lower a-arms and I've come across a little problem. The cross shaft will thread left or right a couple turns- therefore I can adjust the alignment hole. Is there a set dimension for this? Right now I can set it between 3 1/16" and 3 7/16" (side of cap to centerline of alignment hole) where should it be?
Thanks!!

SS Tim · 06-30-2013, 08:56 PM

Section 3 page 8 has the information you need in the factory service manual. If you don't have one download it here.
http://67-72chevytrucks.com/vboard/s...d.php?t=558016

steves1967 · 06-30-2013, 09:47 PM

Hmmm, doesn't seem like a very accurate description. It appears to be 1 1/4" from the "step" on the cross shaft (where the threads end) to the raised mounting pad on the control arm...

Wrenchbender Ret · 06-30-2013, 10:15 PM

Measure from the ledge at the end of the seal to the flange of the a-arm. on each side. Get it as close to center as possible.

SS Tim · 06-30-2013, 10:32 PM

Seems pretty clear,

"Bushing Replacement (Figs. 15 and 16)
1. Remove grease fittings from bushing outer ends and
unscrew bushings from control arm and shaft.
2. Slide new seal on each end of shaft and insert shaft
into control arm.
3. Start new bushings on shaft and into control arm.
Adjust shaft until it is centered in control arm, then
turn bushings in and torque to specifications. Figure
16 shows correct final positioning of shaft. Check
shaft for free rotation and install grease fittings."

06-30-2013, 08:21 PM	#1
steves1967 Registered User Join Date: Dec 2001 Location: Manteca, Ca USA Posts: 305	Lower cross shaft adjustment?? I'm in the process of rebuilding my lower a-arms and I've come across a little problem. The cross shaft will thread left or right a couple turns- therefore I can adjust the alignment hole. Is there a set dimension for this? Right now I can set it between 3 1/16" and 3 7/16" (side of cap to centerline of alignment hole) where should it be? Thanks!! Attached Images __________________ '71 Chevy 3/4 Ton Longbed '22 Chevy Tahoe RST '67 Firebird- 8 sec street car '24 GMC CC 4x4 Duramax Dually

06-30-2013, 08:56 PM	#2
SS Tim Registered User Join Date: Aug 2010 Location: Edwards, CA Posts: 7,503	Re: Lower cross shaft adjustment?? Section 3 page 8 has the information you need in the factory service manual. If you don't have one download it here. http://67-72chevytrucks.com/vboard/s...d.php?t=558016 Attached Images __________________ Thanks, Tim * VIN/Model Decoders * Power Team Charts (engine/transmission/gear ratio) * Post Your Pickup SPID Blazer SPID Suburban/Panel SPID * RTFM ... Read The Factory Manuals... download 'em here Highlanders Do you have a 1972 Plaid Pickup? Plaid Blazer ** Plaid Suburban

06-30-2013, 09:47 PM	#3
steves1967 Registered User Join Date: Dec 2001 Location: Manteca, Ca USA Posts: 305	Re: Lower cross shaft adjustment?? Hmmm, doesn't seem like a very accurate description. It appears to be 1 1/4" from the "step" on the cross shaft (where the threads end) to the raised mounting pad on the control arm... __________________ '71 Chevy 3/4 Ton Longbed '22 Chevy Tahoe RST '67 Firebird- 8 sec street car '24 GMC CC 4x4 Duramax Dually

06-30-2013, 10:15 PM	#4
Wrenchbender Ret Registered User Join Date: Oct 2005 Location: Overland Park, Ks. Posts: 5,216	Re: Lower cross shaft adjustment?? Measure from the ledge at the end of the seal to the flange of the a-arm. on each side. Get it as close to center as possible.

06-30-2013, 10:32 PM	#5
SS Tim Registered User Join Date: Aug 2010 Location: Edwards, CA Posts: 7,503	Re: Lower cross shaft adjustment?? Seems pretty clear, "Bushing Replacement (Figs. 15 and 16) 1. Remove grease fittings from bushing outer ends and unscrew bushings from control arm and shaft. 2. Slide new seal on each end of shaft and insert shaft into control arm. 3. Start new bushings on shaft and into control arm. Adjust shaft until it is centered in control arm, then turn bushings in and torque to specifications. Figure 16 shows correct final positioning of shaft. Check shaft for free rotation and install grease fittings." Attached Images __________________ Thanks, Tim * VIN/Model Decoders * Power Team Charts (engine/transmission/gear ratio) * Post Your Pickup SPID Blazer SPID Suburban/Panel SPID * RTFM ... Read The Factory Manuals... download 'em here Highlanders Do you have a 1972 Plaid Pickup? Plaid Blazer ** Plaid Suburban



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.