12 Bolt has got me Ticked. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

d10s69c10 · 11-20-2008, 06:44 PM

Well as last week i had thrown My drive shaft burning out. I accepted that and it is at a local 18wheeler shop getting beefed up.. NOW for the new issue i looked at my rear end today and noticed a Good dent pointing outwards. After about 10 minutes of disbelief i ripped off the cover and wallaH my spider gears are sitting in the bottom of the diff. All this stuff is BRAND

NEW!!i got it to where im gonna blame one in particular it seems to be broken perfect in 3 pieces, Ring and pinion are fine so im gonna shove a locker in now..

Quesion: whats the deal with C Clip Disconnects for installing a locker. Last time i was gonna put one in Advanced driveline said it would cost about a GRAND to put a locker in this sound right?

or should i start looking for a 9"...

cdowns · 11-20-2008, 07:55 PM

a thousand is about the price of getting a posi rear setup yes

corn · 11-20-2008, 08:42 PM

12 bolt/tough dif=yes
12 bolt/indestructible=nope

My buddy is running a spool in his 12 bolt truck & hates it. I suggest buying a good aftermarket unit unless its drag race only.

d10s69c10 · 11-20-2008, 09:56 PM

i agree with the indestructable part i know.
1000.whew

i dont know this new diff only lasted maybe 1500 miles. maybe im a bit 2 hard on it.

any other rear ends people run thats pretty tuff and readyily available?

cdowns · 11-20-2008, 11:57 PM

9"rears are readily available and easily converted to these trucks or if you really want bullitproff google up mark williams he can build you up a really stout rear for a bit less than 10grand

68GMCCustom · 11-21-2008, 01:33 AM

build a Dana 60.

d10s69c10 · 11-25-2008, 02:29 PM

http://www.carcraft.com/techarticles...ord/index.html

found somthing kinda interesting still contemplating.... i have found a whole new 12 bolt and drive shaft and also a 9 inch no luck on a dana 60 tho..

justcuz · 11-25-2008, 02:55 PM

How about a semi-float 14 bolt? They are just about as strong as a dana 60.
GM used them in a lot of applications, 454SS, TrailblazerSS, some Z71's and light duty 2500 pickups. Alot of them were in 3/4 ton pickups of the eighties and 5 or 6 lug axles/drums/brakes can be found for them. They are big, with a 9.5 inch ring gear. Get one with an open driveline and install a Loc Rite in it. You can find Loc Rite's on sale occaisionally for around 200 bucks. I paid 135 dollars for my last 14 bolt SF at the local P&P. For less than 500 bucks if you handy you can have a tough rear axle.

Ford Assassin · 11-26-2008, 01:05 AM

Quote:

Originally Posted by justcuz

How about a semi-float 14 bolt? They are just about as strong as a dana 60.
GM used them in a lot of applications, 454SS, TrailblazerSS, some Z71's and light duty 2500 pickups. Alot of them were in 3/4 ton pickups of the eighties and 5 or 6 lug axles/drums/brakes can be found for them. They are big, with a 9.5 inch ring gear. Get one with an open driveline and install a Loc Rite in it. You can find Loc Rite's on sale occaisionally for around 200 bucks. I paid 135 dollars for my last 14 bolt SF at the local P&P. For less than 500 bucks if you handy you can have a tough rear axle.

I looked into this option, but how to mount it in a trailing arm truck?

bigsnookmaster · 11-26-2008, 08:42 AM

As much as I hate to admit it,The 9" F rearend is hard to beat.Tough as nails and it's real easy to change center chunks if needed.

justcuz · 11-26-2008, 11:52 PM

Quote:

Originally Posted by Ford Assassin

I looked into this option, but how to mount it in a trailing arm truck?

Trailing arm saddle brackets are sold by several speed shops around the country. You can find them oneline pretty easy.

Ford Assassin · 11-27-2008, 01:22 AM

Quote:

Originally Posted by justcuz

Trailing arm saddle brackets are sold by several speed shops around the country. You can find them oneline pretty easy.

You would be doing me a great favor if you could list any online vendor(s) of such pieces.

d10s69c10 · 11-27-2008, 12:09 PM

Well im not sure about the vendors but generally ill just set small pieces like 1/4 of stock (Already drilled) on my arms place axle over them measure every wich way then tack up my pieces and build around it.

Around here its pretty common to do. but make them welds hot and deep.

**Boog** · 11-27-2008, 12:43 PM

New axle saddles are available from several suspension vendors. Not expensive and I'd check with one of our board vendor first. I'm pretty sure ECE has them.

You can always torch off your old saddles and weld them to the new rear end.

Ont67shortbox · 11-27-2008, 05:11 PM

DTS (no I don"t work there) has a BOLT IN 9 inch/Dana or 12 bolt for our trucks complete or just housing and axles. They used a DTS rear on Project Copperhead, thats how I remembered. I think I am going to order one from them.

11-20-2008, 06:44 PM	#1
d10s69c10 Built 4 Speed Join Date: May 2008 Location: Geneva FL Posts: 619	12 Bolt has got me Ticked. Well as last week i had thrown My drive shaft burning out. I accepted that and it is at a local 18wheeler shop getting beefed up.. NOW for the new issue i looked at my rear end today and noticed a Good dent pointing outwards. After about 10 minutes of disbelief i ripped off the cover and wallaH my spider gears are sitting in the bottom of the diff. All this stuff is BRAND NEW!!i got it to where im gonna blame one in particular it seems to be broken perfect in 3 pieces, Ring and pinion are fine so im gonna shove a locker in now.. Quesion: whats the deal with C Clip Disconnects for installing a locker. Last time i was gonna put one in Advanced driveline said it would cost about a GRAND to put a locker in this sound right? or should i start looking for a 9"... __________________ 1969 C/10 Short Box: 496/T-56 in worx. "To Be Old And Wise, First You Must Be Young And Stupid" Last edited by d10s69c10; 11-20-2008 at 06:45 PM.

11-20-2008, 07:55 PM	#2
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: 12 Bolt has got me Ticked. a thousand is about the price of getting a posi rear setup yes __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

11-20-2008, 08:42 PM	#3
corn Registered User Join Date: Dec 2003 Location: here Posts: 5,789	Re: 12 Bolt has got me Ticked. 12 bolt/tough dif=yes 12 bolt/indestructible=nope My buddy is running a spool in his 12 bolt truck & hates it. I suggest buying a good aftermarket unit unless its drag race only.

11-20-2008, 09:56 PM	#4
d10s69c10 Built 4 Speed Join Date: May 2008 Location: Geneva FL Posts: 619	Re: 12 Bolt has got me Ticked. i agree with the indestructable part i know. 1000.whew i dont know this new diff only lasted maybe 1500 miles. maybe im a bit 2 hard on it. any other rear ends people run thats pretty tuff and readyily available? __________________ 1969 C/10 Short Box: 496/T-56 in worx. "To Be Old And Wise, First You Must Be Young And Stupid"

11-20-2008, 11:57 PM	#5
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: 12 Bolt has got me Ticked. 9"rears are readily available and easily converted to these trucks or if you really want bullitproff google up mark williams he can build you up a really stout rear for a bit less than 10grand __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

11-21-2008, 01:33 AM	#6
68GMCCustom Truck and auto performance nut Join Date: Feb 2007 Location: McKinney,Texas Posts: 3,848	Re: 12 Bolt has got me Ticked. build a Dana 60. __________________ Kurt - '68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy '72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close '06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD '18 Kia Sorento - wife's econo-driver '95 Chevy S10 - reg cab shortbed, LS, 4.3, auto... my '68's powertrain and chassis build -links broken A surprise phase - carb to efi -links broken

11-25-2008, 02:29 PM	#7
d10s69c10 Built 4 Speed Join Date: May 2008 Location: Geneva FL Posts: 619	Re: 12 Bolt has got me Ticked. http://www.carcraft.com/techarticles...ord/index.html found somthing kinda interesting still contemplating.... i have found a whole new 12 bolt and drive shaft and also a 9 inch no luck on a dana 60 tho.. __________________ 1969 C/10 Short Box: 496/T-56 in worx. "To Be Old And Wise, First You Must Be Young And Stupid"

11-25-2008, 02:55 PM	#8
justcuz Registered User Join Date: May 2008 Location: Alta Loma, Ca. Posts: 930	Re: 12 Bolt has got me Ticked. How about a semi-float 14 bolt? They are just about as strong as a dana 60. GM used them in a lot of applications, 454SS, TrailblazerSS, some Z71's and light duty 2500 pickups. Alot of them were in 3/4 ton pickups of the eighties and 5 or 6 lug axles/drums/brakes can be found for them. They are big, with a 9.5 inch ring gear. Get one with an open driveline and install a Loc Rite in it. You can find Loc Rite's on sale occaisionally for around 200 bucks. I paid 135 dollars for my last 14 bolt SF at the local P&P. For less than 500 bucks if you handy you can have a tough rear axle.

11-26-2008, 08:42 AM	#10
bigsnookmaster Registered User Join Date: Jan 2008 Location: St.Petersburg,Fl Posts: 1,267	Re: 12 Bolt has got me Ticked. As much as I hate to admit it,The 9" F rearend is hard to beat.Tough as nails and it's real easy to change center chunks if needed. __________________ greg http://community.webshots.com/user/68406Stepside

11-27-2008, 12:09 PM	#13
d10s69c10 Built 4 Speed Join Date: May 2008 Location: Geneva FL Posts: 619	Re: 12 Bolt has got me Ticked. Well im not sure about the vendors but generally ill just set small pieces like 1/4 of stock (Already drilled) on my arms place axle over them measure every wich way then tack up my pieces and build around it. Around here its pretty common to do. but make them welds hot and deep. __________________ 1969 C/10 Short Box: 496/T-56 in worx. "To Be Old And Wise, First You Must Be Young And Stupid"

11-27-2008, 12:43 PM	#14
Boog laying low Join Date: Mar 2001 Location: Searcy, Ark. USA Posts: 13,438	Re: 12 Bolt has got me Ticked. New axle saddles are available from several suspension vendors. Not expensive and I'd check with one of our board vendor first. I'm pretty sure ECE has them. You can always torch off your old saddles and weld them to the new rear end. __________________ Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross Last edited by Boog; 11-27-2008 at 12:44 PM.

11-27-2008, 05:11 PM	#15
Ont67shortbox Registered User Join Date: May 2003 Location: Ontario Posts: 279	Re: 12 Bolt has got me Ticked. DTS (no I don"t work there) has a BOLT IN 9 inch/Dana or 12 bolt for our trucks complete or just housing and axles. They used a DTS rear on Project Copperhead, thats how I remembered. I think I am going to order one from them.



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