Upper? Lower A-arm Help... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jugernot · 10-03-2004, 02:42 PM

Can anyone tell me what to torque the upper and lower A-arm nuts that hold the A-arms to the frame? I also would like to know how much to torque the upper ball joints. I have just about finished my frame. I will share some pics with you soon, hopefully. Thanks

Sweet72 · 10-03-2004, 03:09 PM

70ft. lbs - upper control arm shaft nuts
45 ft. lbs.- lower control arm shaft U-bolt
50 ft. lbs plus additional torque to align cotter pin. Not to exceed 90 ft. lbs.- upper ball joint
All these torque spec's are for 1/2 ton trucks and taken out of the 1972 10-30 Series Truck Service Manual

jugernot · 10-03-2004, 03:40 PM

Thanks, just the info I needed. I like your Avatar, I'm a bit of a WWII nut.

Rollie396 · 10-03-2004, 09:22 PM

hehe tell him the caption that goes with that av. lol

dinnut · 10-03-2004, 11:27 PM

where can you find a bolt that fits the nut on the lower a-arm?

10-03-2004, 02:42 PM	#1
jugernot Life, Be In It..... Join Date: Oct 2003 Location: Novato, California Posts: 1,498	Upper? Lower A-arm Help... Can anyone tell me what to torque the upper and lower A-arm nuts that hold the A-arms to the frame? I also would like to know how much to torque the upper ball joints. I have just about finished my frame. I will share some pics with you soon, hopefully. Thanks __________________ Project Name: LEMON DROP. Reconstruction started "December 2000". Projected completion date "Who knows" http://67-72chevytrucks.com/vboard/s...d.php?t=200082

10-03-2004, 03:09 PM	#2
Sweet72 Registered User Join Date: Nov 2003 Location: Alexandria, VA Posts: 1,534	70ft. lbs - upper control arm shaft nuts 45 ft. lbs.- lower control arm shaft U-bolt 50 ft. lbs plus additional torque to align cotter pin. Not to exceed 90 ft. lbs.- upper ball joint All these torque spec's are for 1/2 ton trucks and taken out of the 1972 10-30 Series Truck Service Manual __________________ '72 GMC SWB C1500 Custom, frame-off in progress. 383 SBC, 9:1CR, Comp Cams XE262H, Scat internal balanced crank, Eagle SIR 6" rods, Keith Black dish pistons, Dart Iron Eagle 72/180 heads, Weiand Stealth intake, Stewart stage I water pump, Holley 4bbl vac sec, TH350 with B&M Shift Improver Kit. 12 bolt positraction.

10-03-2004, 03:40 PM	#3
jugernot Life, Be In It..... Join Date: Oct 2003 Location: Novato, California Posts: 1,498	Sweet72 Thanks, just the info I needed. I like your Avatar, I'm a bit of a WWII nut. __________________ Project Name: LEMON DROP. Reconstruction started "December 2000". Projected completion date "Who knows" http://67-72chevytrucks.com/vboard/s...d.php?t=200082

10-03-2004, 09:22 PM	#4
Rollie396 someday it will be done! Join Date: Sep 2004 Location: Lloydminster,AB. Canada Posts: 1,620	hehe tell him the caption that goes with that av. lol __________________ '72 C-10 Proud owner of a million new and used pieces that used to be and will once again be(god willing) a testament to the term "they don't build em like that anymore. '80 LWB 2wd beater '67 GMC long fleet (cab donor) '66 long step (parked till it's turn comes around) '65 short step (parts truck that will donate it's bed and possibly frame to the '66) '06 Grand Prix wife's car (she hardly lets me touch it) my pics

10-03-2004, 11:27 PM	#5
dinnut Registered User Join Date: Apr 2003 Location: missouri city, tx Posts: 4,486	where can you find a bolt that fits the nut on the lower a-arm? __________________ 70 longbed 496/th400/Ford 9"

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