Torque specs for shackle, ubolts, etc - The 1947 - Present Chevrolet & GMC Truck Message Board Network

pitchblack86 · 10-08-2009, 04:22 PM

finally getting around to my 5/7 drop tonight and my hanyes manual was stolen out of my truck and my hard drive for my computer is in maine at the moment and dont have my pdf of it.

can someone post what are the specs for the ubolts on the rear axle, leaf spring, and shackle?

searched google and here but didnt find anything. dont wont to over torque anything, as i've previously learned from going crazy with my impact gun. thanks guys.

PS: this site is amazing. i come here for all my chevy needs. i visit this site and jeepforum, and between the 2 i'm able to do all i want to do to my cars.

fiddy9apache · 10-08-2009, 07:33 PM

TIGHT. dont tighten the shackles till the truck is on the ground though. and tighten the ubolts evenly. out of the 100s of suspension jobs ive done ive never have use a torque wrench. you will know when its tight.

im sure some people will disagree with me but i do what i feel comfortable with.

**N2TRUX** · 10-08-2009, 07:37 PM

I use the longest rachet I can then give em a double grunt. That's usually good enough.

Sorry, I really don't have the correct info.

pitchblack86 · 10-09-2009, 07:00 AM

thanks guys. thats what i figured. just gonna tighten til it seems good enough.

**N2TRUX** · 10-09-2009, 08:16 AM

As fiddy9apache be sure to wait till it's on the ground to tighten the shackles.

Also, it's a good idea to drive it a bit and double check the u-bolts. The are prone to stretch after a bit of use and need snugged down again.

pitchblack86 · 10-09-2009, 08:23 AM

ive only gotten the drivers side spring out so far, go to dark to continue last night. what a PITA!!! those ubolts are. finally found my grinder and just cut them off, took almost an hour to get one bolt off, took 45 seconds to cut threw the ubolts...lol.

ran into a little problem with having to flip the leaf spring bolt(cant seem to get it to stop spinning with vise grips, pliers, etc. is it allright to give it a little notch with the grinder to give the pliers some bite?

still dont know why its necessary to flip the pack bolt, but following my instructions to the letter from here. the passenger side is going to be gravy now that i got my grinder going. damn shackles that came with my drop seem like they are way to long, cant see how they are going to fit....

bigblock73 · 10-09-2009, 10:39 AM

Are you talking about the leaf spring center bolt?

Are you reading your instructions correctly???

You have a 1/2 ton right?

I am reading my WC flip kit instructions...it say NOWHERE to remove the leaf spring center bolt for 1/2 tons, ONLY 1-tons...it says for C-3500 only

pitchblack86 · 10-09-2009, 11:03 AM

nice. i never got any instructions from western chassis. i've been going off of a few builds from here, like this one... http://67-72chevytrucks.com/vboard/s...d.php?t=281883 , although he didnt get a whole new kit...

so you dont even have to flip center bolt? i saw atleast 3 builds i have saved where they flipped it...

any clarification on this would be great.

and yes, i have a 1/2 ton shortbed. looks just like the leafs in the post above...

bigblock73 · 10-09-2009, 11:18 AM

No instructions from WC? Both kits I got from them had instructions. They are on green paper.

But you don't need to flip the centering pin.

Perhaps contact WC and have them send you instructions before you proceed...might save you some future hassle.

pitchblack86 · 10-09-2009, 11:28 AM

I previously contacted WC and sport truck direct and never recieved any instructions. I never got the copy of the bill either. Tried searching here and google for a PDF or whatever of the instructions and never found them. Be a big help if I had them but don't. Well good then since I could get the bolt out.

Did the instructions tell you what to do with installing the shackle? I know how to pull the rear apart and put back together but shackle has me worried.

Btw, thanks for helping me on this. Much appreciated.

10-08-2009, 04:22 PM	#1
pitchblack86 Registered User Join Date: Jul 2009 Location: washington, nj Posts: 63	Torque specs for shackle, ubolts, etc finally getting around to my 5/7 drop tonight and my hanyes manual was stolen out of my truck and my hard drive for my computer is in maine at the moment and dont have my pdf of it. can someone post what are the specs for the ubolts on the rear axle, leaf spring, and shackle? searched google and here but didnt find anything. dont wont to over torque anything, as i've previously learned from going crazy with my impact gun. thanks guys. PS: this site is amazing. i come here for all my chevy needs. i visit this site and jeepforum, and between the 2 i'm able to do all i want to do to my cars. Last edited by pitchblack86; 10-08-2009 at 04:24 PM.

10-08-2009, 07:33 PM	#2
fiddy9apache Registered User Join Date: Aug 2009 Location: ftw tex Posts: 682	Re: Torque specs for shackle, ubolts, etc TIGHT. dont tighten the shackles till the truck is on the ground though. and tighten the ubolts evenly. out of the 100s of suspension jobs ive done ive never have use a torque wrench. you will know when its tight. im sure some people will disagree with me but i do what i feel comfortable with. Last edited by fiddy9apache; 10-08-2009 at 07:34 PM.

10-08-2009, 07:37 PM	#3
N2TRUX Happy to be here Join Date: Mar 2000 Location: Cypress, TX Posts: 39,023	Re: Torque specs for shackle, ubolts, etc I use the longest rachet I can then give em a double grunt. That's usually good enough. Sorry, I really don't have the correct info. __________________ Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra"

10-09-2009, 07:00 AM	#4
pitchblack86 Registered User Join Date: Jul 2009 Location: washington, nj Posts: 63	Re: Torque specs for shackle, ubolts, etc thanks guys. thats what i figured. just gonna tighten til it seems good enough.

10-09-2009, 08:16 AM	#5
N2TRUX Happy to be here Join Date: Mar 2000 Location: Cypress, TX Posts: 39,023	Re: Torque specs for shackle, ubolts, etc As fiddy9apache be sure to wait till it's on the ground to tighten the shackles. Also, it's a good idea to drive it a bit and double check the u-bolts. The are prone to stretch after a bit of use and need snugged down again. __________________ Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra"

10-09-2009, 08:23 AM	#6
pitchblack86 Registered User Join Date: Jul 2009 Location: washington, nj Posts: 63	Re: Torque specs for shackle, ubolts, etc ive only gotten the drivers side spring out so far, go to dark to continue last night. what a PITA!!! those ubolts are. finally found my grinder and just cut them off, took almost an hour to get one bolt off, took 45 seconds to cut threw the ubolts...lol. ran into a little problem with having to flip the leaf spring bolt(cant seem to get it to stop spinning with vise grips, pliers, etc. is it allright to give it a little notch with the grinder to give the pliers some bite? still dont know why its necessary to flip the pack bolt, but following my instructions to the letter from here. the passenger side is going to be gravy now that i got my grinder going. damn shackles that came with my drop seem like they are way to long, cant see how they are going to fit....

10-09-2009, 10:39 AM	#7
bigblock73 yeller Join Date: Oct 2001 Location: Twin Cities Posts: 13,826	Re: Torque specs for shackle, ubolts, etc Are you talking about the leaf spring center bolt? Are you reading your instructions correctly??? You have a 1/2 ton right? I am reading my WC flip kit instructions...it say NOWHERE to remove the leaf spring center bolt for 1/2 tons, ONLY 1-tons...it says for C-3500 only __________________ Jeff 73-87.com 73-87.com Facebook page 73-87 cab corner 6x9 speaker brackets for sale 67-72 cab corner speaker brackets for sale 47-54 cab corner speaker brackets for sale

10-09-2009, 11:03 AM	#8
pitchblack86 Registered User Join Date: Jul 2009 Location: washington, nj Posts: 63	Re: Torque specs for shackle, ubolts, etc nice. i never got any instructions from western chassis. i've been going off of a few builds from here, like this one... http://67-72chevytrucks.com/vboard/s...d.php?t=281883 , although he didnt get a whole new kit... so you dont even have to flip center bolt? i saw atleast 3 builds i have saved where they flipped it... any clarification on this would be great. and yes, i have a 1/2 ton shortbed. looks just like the leafs in the post above... Last edited by pitchblack86; 10-09-2009 at 11:04 AM.

10-09-2009, 11:18 AM	#9
bigblock73 yeller Join Date: Oct 2001 Location: Twin Cities Posts: 13,826	Re: Torque specs for shackle, ubolts, etc No instructions from WC? Both kits I got from them had instructions. They are on green paper. But you don't need to flip the centering pin. Perhaps contact WC and have them send you instructions before you proceed...might save you some future hassle. __________________ Jeff 73-87.com 73-87.com Facebook page 73-87 cab corner 6x9 speaker brackets for sale 67-72 cab corner speaker brackets for sale 47-54 cab corner speaker brackets for sale

10-09-2009, 11:28 AM	#10
pitchblack86 Registered User Join Date: Jul 2009 Location: washington, nj Posts: 63	Re: Torque specs for shackle, ubolts, etc I previously contacted WC and sport truck direct and never recieved any instructions. I never got the copy of the bill either. Tried searching here and google for a PDF or whatever of the instructions and never found them. Be a big help if I had them but don't. Well good then since I could get the bolt out. Did the instructions tell you what to do with installing the shackle? I know how to pull the rear apart and put back together but shackle has me worried. Btw, thanks for helping me on this. Much appreciated.



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