Stock suspension flexed out - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Rogue_Alphonse · 10-04-2011, 09:59 PM

Mind you it's the heavy duty option... Had it not been for the welded rear, it would NOT have gotten that high up on the embankment.

**N2TRUX** · 10-05-2011, 11:37 AM

Explain "welded rear"?

Your41Plague12 · 10-05-2011, 11:57 AM

I think he meant the spider gears are welded together. Basically a poor man's locker. Some people call it "Lincoln Locked," due to the Lincoln brand of welders.

**N2TRUX** · 10-05-2011, 12:07 PM

Thats what I thought, but didn't want to assume. Not a good choice in my opinion.

Your41Plague12 · 10-05-2011, 01:27 PM

I've never really heard of problems coming from it other than the natural downfalls of a locker. As long as it's properly welded up, it should work fine. Lots of off-roaders do it on mud trucks and such and run huge tires, with nothing but good results. I'm with you though, I'm still not going to do it. It's a chance I don't want to take.

Rogue_Alphonse · 10-05-2011, 10:25 PM

Honestly, I was in a fix and had no choice. My 12 bolt was going in my Blazer because of the SAME reason from an IDENTICAL rear. 10-bolt 3:08 GovLoc. They both blew the same week.

I'm on a slow hunt for a 14-bolt 9.5" for the GMC though

Rogue_Alphonse · 10-05-2011, 10:28 PM

Quote:

Originally Posted by Your41Plague12

I've never really heard of problems coming from it other than the natural downfalls of a locker. As long as it's properly welded up, it should work fine. Lots of off-roaders do it on mud trucks and such and run huge tires, with nothing but good results. I'm with you though, I'm still not going to do it. It's a chance I don't want to take.

I've been putting 1,100 miles a month on it, mostly highway and city driving [Philly's roads SUCK too] and it's been alright. I can go 85 and it doesn't vibrate!

**N2TRUX** · 10-06-2011, 11:19 AM

I had a buddy that did it on a 2wd "pre-runner" style truck years ago. He fragged the gears on a trail, and had to be rescued in the middle of nowhere. We pulled it down once back in the shop and it was clear the welds created weak points. Since then I have felt its better to do it right than weld the spiders.

f.monroe · 10-06-2011, 02:46 PM

I installed a mini spool in the rear we built for my brother-in-law 2 weeks ago. Looks like a nice cheap alternative and there are no created weak points.
Frank

tazman87 · 10-06-2011, 04:09 PM

#1. Lincoln welders kick ass

#2. Driving at any speeds and your rear end breaks and locks up can result in some serious injury.

Goldfinger · 10-06-2011, 07:42 PM

I could really only see failure if someone cool it quickly by putting it in water or pouring oil over the top of it. other than that it should be reliable.

tazman87 · 10-06-2011, 09:42 PM

it wont be reliable. you cannot weld or put excess heat into machined/heat treated steel and or any type of alloy. it will cause the metal to break down and crack.

think of a big ice block sitting on a table. quickly take a heat gun to it and you will see the ice block crack. same thing with treated steel.

motornut · 10-06-2011, 09:58 PM

getting it home is one thing ,relying on it isn't a good idea
some PO of my 88 burb welded the rear and bits were a floatin ,worked for a while tho
didn't know when i bought it tho,wouldn't think to check that
cost me bout 1200 to get rebuilt

njlimbaugh · 10-07-2011, 09:44 AM

What tazman87 said in spades! The manufacturing sequence on anything made of steel is: cut (shape), weld, machine, heat-treat. You can't weld anything that has been machined and expect it to hold it's shape, much less the strength.

tazman87 · 10-07-2011, 12:53 PM

had a buddy of mine blow his rear end ONLY because it was slowing going on him, not because he welded the diff...but when you wrap the car around a pole and nearly hitting on coming traffic..life is at stake.

Rogue_Alphonse · 10-07-2011, 05:14 PM

It's only a temporary fix really, It'll definately be swapped out before I put my 465/208 in it.

tazman87 · 10-07-2011, 08:34 PM

lol oh i know bud. if i ever get chances to explain it i will
..=)

10-05-2011, 11:57 AM	#3
Your41Plague12 Registered User Join Date: Dec 2010 Location: Pittsburgh, PA Posts: 1,009	Re: Stock susepension flexed out I think he meant the spider gears are welded together. Basically a poor man's locker. Some people call it "Lincoln Locked," due to the Lincoln brand of welders. __________________ Steve Member of the Foot Pedal Club '83 Chevy K20: 6" Rough Country, 3" Performance Accessories BL, Bushwacker Cutouts, 38x15.50 Mickey Thompson Baja Claws, 350 HP 350 crate engine from Jegs, Turbo 400

10-05-2011, 12:07 PM	#4
N2TRUX Happy to be here Join Date: Mar 2000 Location: Cypress, TX Posts: 39,023	Re: Stock susepension flexed out Thats what I thought, but didn't want to assume. Not a good choice in my opinion. __________________ Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra"

10-05-2011, 01:27 PM	#5
Your41Plague12 Registered User Join Date: Dec 2010 Location: Pittsburgh, PA Posts: 1,009	Re: Stock suspension flexed out I've never really heard of problems coming from it other than the natural downfalls of a locker. As long as it's properly welded up, it should work fine. Lots of off-roaders do it on mud trucks and such and run huge tires, with nothing but good results. I'm with you though, I'm still not going to do it. It's a chance I don't want to take. __________________ Steve Member of the Foot Pedal Club '83 Chevy K20: 6" Rough Country, 3" Performance Accessories BL, Bushwacker Cutouts, 38x15.50 Mickey Thompson Baja Claws, 350 HP 350 crate engine from Jegs, Turbo 400

10-05-2011, 10:25 PM	#6
Rogue_Alphonse Registered User Join Date: Dec 2009 Location: Gap PA Posts: 280	Re: Stock suspension flexed out Honestly, I was in a fix and had no choice. My 12 bolt was going in my Blazer because of the SAME reason from an IDENTICAL rear. 10-bolt 3:08 GovLoc. They both blew the same week. I'm on a slow hunt for a 14-bolt 9.5" for the GMC though __________________ 1991 Mustang GT Vert, T-5 w/ Pro 5.0, Trick Flow upper & lower, BBK cold air intake, 3:73, BAMA chip, etc. 1988 K5 Blazer, [coming soon] TBI 400, SM465/NP208, 12 bolt rear, 3:08's, looks like a 1980. 1998 Jeep Grand Cherokee 4.0 fully loaded daily driver! Where there's a will, there's a rig!

10-06-2011, 11:19 AM	#8
N2TRUX Happy to be here Join Date: Mar 2000 Location: Cypress, TX Posts: 39,023	Re: Stock suspension flexed out I had a buddy that did it on a 2wd "pre-runner" style truck years ago. He fragged the gears on a trail, and had to be rescued in the middle of nowhere. We pulled it down once back in the shop and it was clear the welds created weak points. Since then I have felt its better to do it right than weld the spiders. __________________ Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra"

10-04-2011, 09:59 PM	#1
Rogue_Alphonse Registered User Join Date: Dec 2009 Location: Gap PA Posts: 280	Stock suspension flexed out Mind you it's the heavy duty option... Had it not been for the welded rear, it would NOT have gotten that high up on the embankment. __________________ 1991 Mustang GT Vert, T-5 w/ Pro 5.0, Trick Flow upper & lower, BBK cold air intake, 3:73, BAMA chip, etc. 1988 K5 Blazer, [coming soon] TBI 400, SM465/NP208, 12 bolt rear, 3:08's, looks like a 1980. 1998 Jeep Grand Cherokee 4.0 fully loaded daily driver! Where there's a will, there's a rig!

10-05-2011, 11:37 AM	#2
N2TRUX Happy to be here Join Date: Mar 2000 Location: Cypress, TX Posts: 39,023	Re: Stock susepension flexed out Explain "welded rear"? __________________ Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra"

10-06-2011, 02:46 PM	#9
f.monroe Senior Member Join Date: May 2004 Location: Caldwell,Tx. Posts: 3,648	Re: Stock suspension flexed out I installed a mini spool in the rear we built for my brother-in-law 2 weeks ago. Looks like a nice cheap alternative and there are no created weak points. Frank __________________ Born and proudly residing in a Red State !

10-06-2011, 04:09 PM	#10
tazman87 Registered User Join Date: Aug 2010 Location: New Hamburg, Ontario Posts: 220	Re: Stock suspension flexed out #1. Lincoln welders kick ass #2. Driving at any speeds and your rear end breaks and locks up can result in some serious injury.

10-06-2011, 07:42 PM	#11
Goldfinger Registered User Join Date: May 2010 Location: laurel hill Fl Posts: 645	Re: Stock suspension flexed out I could really only see failure if someone cool it quickly by putting it in water or pouring oil over the top of it. other than that it should be reliable. __________________ 1985 C10 Custom Deluxe LWB 305/700r4 [ Goldfinger ] 1999 k3500 crew cab dually 6.5tdi/4l80e

10-06-2011, 09:42 PM	#12
tazman87 Registered User Join Date: Aug 2010 Location: New Hamburg, Ontario Posts: 220	Re: Stock suspension flexed out it wont be reliable. you cannot weld or put excess heat into machined/heat treated steel and or any type of alloy. it will cause the metal to break down and crack. think of a big ice block sitting on a table. quickly take a heat gun to it and you will see the ice block crack. same thing with treated steel.

10-06-2011, 09:58 PM	#13
motornut 78K & 79C Jimmys Join Date: Nov 2009 Location: Ottawa Ont CANADA Posts: 7,901	Re: Stock suspension flexed out getting it home is one thing ,relying on it isn't a good idea some PO of my 88 burb welded the rear and bits were a floatin ,worked for a while tho didn't know when i bought it tho,wouldn't think to check that cost me bout 1200 to get rebuilt __________________ John 1978 GMCJimmy4X4-350/203 1979 GMCJimmy4X2-305/350

10-07-2011, 09:44 AM	#14
njlimbaugh Registered User Join Date: Jun 2011 Location: LaFayette GA Posts: 111	Re: Stock suspension flexed out What tazman87 said in spades! The manufacturing sequence on anything made of steel is: cut (shape), weld, machine, heat-treat. You can't weld anything that has been machined and expect it to hold it's shape, much less the strength.

10-07-2011, 12:53 PM	#15
tazman87 Registered User Join Date: Aug 2010 Location: New Hamburg, Ontario Posts: 220	Re: Stock suspension flexed out had a buddy of mine blow his rear end ONLY because it was slowing going on him, not because he welded the diff...but when you wrap the car around a pole and nearly hitting on coming traffic..life is at stake.

10-07-2011, 05:14 PM	#16
Rogue_Alphonse Registered User Join Date: Dec 2009 Location: Gap PA Posts: 280	Re: Stock suspension flexed out It's only a temporary fix really, It'll definately be swapped out before I put my 465/208 in it. __________________ 1991 Mustang GT Vert, T-5 w/ Pro 5.0, Trick Flow upper & lower, BBK cold air intake, 3:73, BAMA chip, etc. 1988 K5 Blazer, [coming soon] TBI 400, SM465/NP208, 12 bolt rear, 3:08's, looks like a 1980. 1998 Jeep Grand Cherokee 4.0 fully loaded daily driver! Where there's a will, there's a rig!



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10-07-2011, 08:34 PM	#17
tazman87 Registered User Join Date: Aug 2010 Location: New Hamburg, Ontario Posts: 220	Re: Stock suspension flexed out lol oh i know bud. if i ever get chances to explain it i will ..=)

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