Lower Control Arm Shaft Replacement - The 1947 - Present Chevrolet & GMC Truck Message Board Network

4tiresngas · 04-05-2005, 11:49 PM

Ok, I bought new lower control arm shafts and went to the shop to put them in. As I read the instructions that came with them, it said to be sure to make sure the indent was at the right end. It did not say what was right. I looked at my old control arms and the driver's side had the indent towards the rear while the passenger's side had the indent towards the front. Considering everything else on my front end had been jacked by a PO, I am not sure I should take that as correct. Does anyone know how they are supposed to go? The pictures below show the indent I'm talking about and the mounting surfaces. I really do not know the purpose of the indent. Any help would be appreciated.
Picture of the shaft...indent is too the left (if pic is not too dark)

Where the rear U-bolt goes on driver's side.

Where the front U-bolt goes on driver's side.

The lower control arms I cleaned up.

ChevyDude · 04-06-2005, 01:31 AM

Ok, if you look at the saddles under the frame, one of them should have a dime sized head in the middle of it. That indentation on the control fits in the saddle with the dime sized head in the middle. It keeps the control arm from being able to spin once it's tighten into place with the U bolts.

Hope this helps.

71meangreenc10 · 04-06-2005, 07:53 AM

On my 71 my indents went towards the front of the shafts

ChevyDude · 04-06-2005, 09:37 AM

Quote:

Originally Posted by 71meangreenc10

On my 71 my indents went towards the front of the shafts

So did mine....That is the way they should be.

CHEVIBUBBA · 04-06-2005, 04:43 PM

the saddles will come off if they haven't already.
a few blows with a ball peen hammer should knock them loose.
the "indent" & matching saddle go to the front.

04-05-2005, 11:49 PM	#1
4tiresngas An American Soldier Join Date: Feb 2005 Location: Grumolo D' Abadessee, Italy Posts: 503	Lower Control Arm Shaft Replacement Ok, I bought new lower control arm shafts and went to the shop to put them in. As I read the instructions that came with them, it said to be sure to make sure the indent was at the right end. It did not say what was right. I looked at my old control arms and the driver's side had the indent towards the rear while the passenger's side had the indent towards the front. Considering everything else on my front end had been jacked by a PO, I am not sure I should take that as correct. Does anyone know how they are supposed to go? The pictures below show the indent I'm talking about and the mounting surfaces. I really do not know the purpose of the indent. Any help would be appreciated. Picture of the shaft...indent is too the left (if pic is not too dark) Where the rear U-bolt goes on driver's side. Where the front U-bolt goes on driver's side. The lower control arms I cleaned up. __________________ Dan dan.brue@us.army.mil

04-06-2005, 01:31 AM	#2
ChevyDude Senior Member Join Date: Jun 2003 Location: Westminster, CO Posts: 3,071	Ok, if you look at the saddles under the frame, one of them should have a dime sized head in the middle of it. That indentation on the control fits in the saddle with the dime sized head in the middle. It keeps the control arm from being able to spin once it's tighten into place with the U bolts. Hope this helps. __________________ Alex 1971 Lil' Red 350 SBC 700R4

04-06-2005, 07:53 AM	#3
71meangreenc10 Its a Truck Thing...... Join Date: Dec 2004 Location: Sierra Vista, Arizona Posts: 3,179	On my 71 my indents went towards the front of the shafts __________________ 71 C10 283/3SPD Full Resto 71 GMC 1500 Sierra Grande http://67-72chevytrucks.com/vboard/s...d.php?t=518599 70 C10 Suburban Former military GSA truck. 72 Chevy Blazer 4X4, Sloppy Jo, Mountain Climber. Wife says no more trucks. http://67-72chevytrucks.com/vboard/s...d.php?t=707378 72 GMC 1 Ton Motor Home, wife said no more trucks until she saw this one. Gen 3 6.0/4L80E 4.10 http://67-72chevytrucks.com/vboard/s...d.php?t=761110 68 GMC Suburban was 3/4 ton, now 1/2.Wife shook her head 71 C30 Wrecker 71 C20 Scott-Bilt As weird as it gets..BB Cheyenne AC Truck 68 GMC Long Stepside. They keep following me home 69 C30 Former Motor Home, Flat Bed time 70 G20 Red-E-Kamp Conversion "I'm your Boogy Van"

04-06-2005, 04:43 PM	#5
CHEVIBUBBA got boost? Join Date: Mar 2005 Posts: 123	the saddles will come off if they haven't already. a few blows with a ball peen hammer should knock them loose. the "indent" & matching saddle go to the front. __________________ '70 chevy lwb w/'67 hood. 357 s.b.c. built, 4l60 w/vigilante lockup high stall converter, edelbrock pro-flo,brodix heads,comp cams rollerized w/ belt drive, one piece d-shaft, yada, yada, yada..... '82 honda v45 sabre"the black"

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