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06-21-2011, 11:57 PM | #26 | |
60-66 Nut
Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,252
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Re: Bullet proof GM 12 bolt.
The TBSS ' have 9.5 SF 14 bolts under them?
I would go with either a Dana 60 or the 9.5 SF 14 bolt, and have it shortened to your needs. The Dana 60's are very common under F250's and the 9.5 SF 14 bolts starting in mid 80's GM C20,K20 and the 2500's from '88 and up. Quote:
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Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE |
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06-22-2011, 12:05 PM | #27 |
Truck and auto performance nut
Join Date: Feb 2007
Location: McKinney,Texas
Posts: 3,848
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Re: Bullet proof GM 12 bolt.
Yes, 9.5" 14 bolt. And its holding up to what guys are throwing at it....taking the stock LS2 to bigger cubes and boosting with forced induction or N2O. The 4L70E "Super Duty" trans has been the weakest link. Our TBSS had nothing but a tune....and is on its 2nd trans so to speak as they rebuilt the original at around 25k mi.? The tunes been out now for a while, and won't go back in until I'm ready to start upgrading parts...which will be within the next 12 mths or so. Its out of warranty this month...and paid off in 12. Then the wife gets something new...and I get the TBSS to add to my "collection of 2"...a '68 and an '06...though I'm working to get my dads old white w/red leather '84 Caddy Fleetwood Brougham to add also. Then I'll have 3 and it will be time to move to a home with more garage/land around it!
***BTW - this also makes TBSS's prime candidates to purchase a salvage truck for the complete LS2/4L70e/9.5" 14bolt drivetrain. Actually, I think the complete chassis is used on the AD series (47-54/55?) trucks/SUVs.
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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 Last edited by 68GMCCustom; 06-22-2011 at 12:14 PM. |
06-23-2011, 12:04 AM | #28 |
60-66 Nut
Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,252
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Re: Bullet proof GM 12 bolt.
That's interesting. I had no idea that GM put the 9.5" 14 bolt under anything but trucks. I see that they put them under the 6 speed SSR's as well. It's too bad they changed the wheel bolt pattern to 6 x 5", but that would be easy enough to change to 6 x 5.5" if a guy wanted. Do you have any idea on the width of these in the TBSS application?
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Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE |
06-23-2011, 12:09 PM | #29 | |
Registered User
Join Date: May 2011
Location: rochester ny
Posts: 176
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Re: Bullet proof GM 12 bolt.
Quote:
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06-26-2011, 09:58 AM | #30 |
Registered User
Join Date: Feb 2001
Location: Wetumpka, Al, U.S.
Posts: 8,892
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Re: Bullet proof GM 12 bolt.
I personally don't understand why anyone would run anything other than a 9 inch in a street or strip ride.
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Kevin Special Thanks to All who have helped on the TRUCK! My Pass Time Show http://s129.photobucket.com/albums/p...Chapter1-0.mp4 So Far my best Times are: Motor only: 6.44 1/8 @ 104.13 10.39 1/4 @ 125.83 Nitrous Times: 5.785 1/8 @ 118.65 with a 1.336 60ft 9.168 1/4 @ 142.58 with a 250 shot dead out of the hole! |
06-26-2011, 11:05 AM | #31 |
Registered Truck Offender
Join Date: May 2008
Location: hells training ground (aka Ariz)
Posts: 3,118
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Re: Bullet proof GM 12 bolt.
Kevin.
... and besides,, if someone truly has a 'bullet proof' rear end of any flavor,,, All I can say is you ain't making enough power and don't have enough traction!!! Given enough power you can destroy just about anything. After I twisted 1 Strange axle, then snapped another, Strange themselves sent me to the Dutchman and he forged me a couple out of his special allow. Yup,, here it is. http://small-block-chevy.com/images/662010/axle2.JPG (big picture) That's what let go in initial testing of the ol 66 in Feb. A set of Mark Williams axles in there now. Big tires,,, dead hooking... Somethings gonna give. Again fortifying my point... nothing is 'bulletproof'
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Still playin with trucks, even at my age! When you're dead, it's only a problem for the people around you, because you don't know you're dead. .....It's kinda the same when your STUPID. I just did my taxes and reviewed my SS statement. Thanks to the current administration it looks like I will only have to work till noon on the day of my funeral. |
06-26-2011, 02:38 PM | #32 |
At the body shop.
Join Date: Aug 2009
Location: Land of fruits and nuts.
Posts: 5,256
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Re: Bullet proof GM 12 bolt.
Marv Thats a sweet pic...
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" That didnt make it any newer " " Dont antique the equipment " |
06-26-2011, 05:47 PM | #33 |
Registered Truck Offender
Join Date: May 2008
Location: hells training ground (aka Ariz)
Posts: 3,118
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Re: Bullet proof GM 12 bolt.
proof that my dad was right. Given enough time I could break an anvil .
Yeah that pic is a cool example of the grain structure of a forged alloy ain't it!
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Still playin with trucks, even at my age! When you're dead, it's only a problem for the people around you, because you don't know you're dead. .....It's kinda the same when your STUPID. I just did my taxes and reviewed my SS statement. Thanks to the current administration it looks like I will only have to work till noon on the day of my funeral. Last edited by Marv D; 06-26-2011 at 05:48 PM. |
06-26-2011, 06:33 PM | #34 |
At the body shop.
Join Date: Aug 2009
Location: Land of fruits and nuts.
Posts: 5,256
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Re: Bullet proof GM 12 bolt.
Pops used to run 40spline summer bros in his off road racer and would replace them after a full turn...
Posted via Mobile Device
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" That didnt make it any newer " " Dont antique the equipment " |
06-27-2011, 08:20 PM | #35 |
Registered User
Join Date: Dec 2010
Location: Arkansas
Posts: 608
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Re: Bullet proof GM 12 bolt.
Thanks guys for the posts. I did not mean literally bullet proof. Just want something that I do not have too go through in six months after building it.
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07-03-2011, 02:49 AM | #36 | |
Senior Member
Join Date: Dec 2001
Location: Redding,CA...USA
Posts: 4,736
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Re: Bullet proof GM 12 bolt.
Quote:
I was going to swap them out, but they are still str8 and un-twisted
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It's called "drag racing" if they called it "tic..tic..WHAM!..BANG! F*&K!!!", they'd have to keep the magazines under the counter with the other men's publications click the clicky to join the site.... http://67-72chevytrucks.com/vboard/payments.php 67 lwb..first hotrod in 25 years..540 best ET is 9.45 @ 141.44 Anderson,CA |
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07-03-2011, 03:03 PM | #37 |
At the body shop.
Join Date: Aug 2009
Location: Land of fruits and nuts.
Posts: 5,256
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Re: Bullet proof GM 12 bolt.
Pops old class 4 racecar. Built in 76, still racing today.
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" That didnt make it any newer " " Dont antique the equipment " |
07-22-2011, 09:33 PM | #38 |
Registered User
Join Date: Feb 2010
Location: New Caney, Texas
Posts: 356
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Re: Bullet proof GM 12 bolt.
I would beef up the 12 bolt truck rearend. My brothers 65 went a best of 8.90's on a 12 bolt with 468 with a trans break. Here is a link of the video the night the trans break started to fail.... you'll notice as he staged the truck starts creeping.
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07-22-2011, 09:41 PM | #39 |
~Rest In Peace~
Join Date: May 2005
Location: CALIFORNIA NOR CAL
Posts: 9,707
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Re: Bullet proof GM 12 bolt.
1/8 mile ?
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is it fast ? it has a lighting bolt donut? B___H please, I can remove 90% of your so called "beauty" with a kleenex |
07-22-2011, 09:51 PM | #40 |
Registered User
Join Date: Feb 2010
Location: New Caney, Texas
Posts: 356
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Re: Bullet proof GM 12 bolt.
That pass is 1/8th yes... he ran high 5.70 to 6.0's in the 1/8th.
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07-23-2011, 12:12 AM | #41 |
~Rest In Peace~
Join Date: May 2005
Location: CALIFORNIA NOR CAL
Posts: 9,707
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Re: Bullet proof GM 12 bolt.
if you build it they will come
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is it fast ? it has a lighting bolt donut? B___H please, I can remove 90% of your so called "beauty" with a kleenex Last edited by fastwillie 696969; 07-23-2011 at 12:20 AM. |
07-30-2011, 07:22 PM | #42 |
Mean Green
Join Date: Sep 2007
Location: Portland, OR
Posts: 522
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Re: Bullet proof GM 12 bolt.
If ya plan on running big slicks and big power take the advise from the other members and weld the tubes up to the center section.
This happened to me last night from not having the tubes welded.
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427 SBC 683HP & 590ftlbsTRQ @ fly wheel. 60'-1.38 1/4-10.43 MPH-124.6 New ET current 4/2019 AKA MEAN GREEN. |
07-30-2011, 08:14 PM | #43 |
At the body shop.
Join Date: Aug 2009
Location: Land of fruits and nuts.
Posts: 5,256
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Re: Bullet proof GM 12 bolt.
Thats ugliness.
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" That didnt make it any newer " " Dont antique the equipment " |
07-31-2011, 01:22 AM | #44 |
Registered User
Join Date: Feb 2001
Location: Wetumpka, Al, U.S.
Posts: 8,892
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Re: Bullet proof GM 12 bolt.
I hate to see that happen to you. How much stuff did it tear up?
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Kevin Special Thanks to All who have helped on the TRUCK! My Pass Time Show http://s129.photobucket.com/albums/p...Chapter1-0.mp4 So Far my best Times are: Motor only: 6.44 1/8 @ 104.13 10.39 1/4 @ 125.83 Nitrous Times: 5.785 1/8 @ 118.65 with a 1.336 60ft 9.168 1/4 @ 142.58 with a 250 shot dead out of the hole! |
07-31-2011, 03:52 PM | #45 |
Truck and auto performance nut
Join Date: Feb 2007
Location: McKinney,Texas
Posts: 3,848
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Re: Bullet proof GM 12 bolt.
ouch
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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 |
07-31-2011, 06:28 PM | #46 |
~Rest In Peace~
Join Date: May 2005
Location: CALIFORNIA NOR CAL
Posts: 9,707
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Re: Bullet proof GM 12 bolt.
what pinion angle is that set at ?
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is it fast ? it has a lighting bolt donut? B___H please, I can remove 90% of your so called "beauty" with a kleenex |
07-31-2011, 11:52 PM | #47 |
Registered User
Join Date: Jun 2006
Location: Maple Valley, WA
Posts: 1,913
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Re: Bullet proof GM 12 bolt.
If money were no object I would be all over a Halibrand Quick Change in a heartbeat but because money is unfortunately an issue I would buy a Strange S-60 rearend.
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08-01-2011, 11:19 PM | #48 |
Mean Green
Join Date: Sep 2007
Location: Portland, OR
Posts: 522
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Re: Bullet proof GM 12 bolt.
Kevin,
So far all I can tell is it banged up my cross member destroyed the drive shaft, and spun the center section. I should know by next weekend what the in side looks like. I spun the yoke by hand and every thing looks good. I have a steel 1350 yoke on the pinion and it won the battle. I can't believe the mufflers didn't get beat up. Fastwillie, I'm not sure what it spun to. I can crawl under it tomorrow with a angle finder. The drive shaft was about 3* I like the way you think BigDan. For now I'm just going to send this good used 12 bolt to the dutch man and have them weld it up.
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427 SBC 683HP & 590ftlbsTRQ @ fly wheel. 60'-1.38 1/4-10.43 MPH-124.6 New ET current 4/2019 AKA MEAN GREEN. |
08-01-2011, 11:22 PM | #49 |
Mean Green
Join Date: Sep 2007
Location: Portland, OR
Posts: 522
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Re: Bullet proof GM 12 bolt.
Ready for the Dutchman
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427 SBC 683HP & 590ftlbsTRQ @ fly wheel. 60'-1.38 1/4-10.43 MPH-124.6 New ET current 4/2019 AKA MEAN GREEN. |
08-02-2011, 09:21 AM | #50 |
Registered User
Join Date: Aug 2011
Location: Diamondhead, Ms.
Posts: 12
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Re: Bullet proof GM 12 bolt.
I'm trying to get some ideas for my 68.
It has the original six lug peg leg and I want to convert it to posi. Alot of product choices out there and would like some help narrowing it down. I have a M-22 4 spd in it behind a SBC with + or - 500 hp. Thanks! |
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