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Old 10-30-2008, 04:38 AM   #1
WhiteStar
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Bolt In 12 Bolt Or 9" Rear

Anyone have Leeds on who Might offer a Bolt in 12 bolt or 9" For a 1970 GMC? I Would Be needing one for an N20 496" Application, w/ spool Heavy axles etc. Also was wondering if theres any benifit to setting a coil over shock set-up on the same? Thanks..
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Old 10-30-2008, 08:11 AM   #2
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Re: Bolt In 12 Bolt Or 9" Rear

I would older a 9 inch from Moser what ever width you wand then do trailing arms coilovers and an anti roll. I think you will have wheel hop with the leaf springs.
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10.39 1/4 @ 125.83

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Old 10-30-2008, 09:59 AM   #3
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Re: Bolt In 12 Bolt Or 9" Rear

I'm really happy with the Moser 9" in my camaro......
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Old 10-30-2008, 10:29 AM   #4
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Re: Bolt In 12 Bolt Or 9" Rear

This Truck is a coil spring rear, it may be a 69 model,but either way I was looking to see if anyone offered a prefabbed bolt in deal?Thanks For the reply or any other insight.

Last edited by WhiteStar; 10-30-2008 at 10:29 AM.
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Old 10-30-2008, 10:48 AM   #5
djracer
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Re: Bolt In 12 Bolt Or 9" Rear

Not hardly anyone leaves these trucks stock height and I think the varying ride height would cause pinion angle problems. If you order a housing the right length the only welding would be the pan hard bar and the saddles for the trailing arms.
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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!
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Old 10-30-2008, 11:37 AM   #6
WhiteStar
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Re: Bolt In 12 Bolt Or 9" Rear

yeah, I allready have a set of trailing arms and a 4-6 lowering kit from CCP,as well as the cross frame bar where trailing arms attach,what the trick to setting the pinion angle if I Get a 9" and weld the mount points on for the trail arms? Get it all in there and tack it where it looks good? I Have a Lift and transjack here at the house so it would be fairly easy.
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Old 10-30-2008, 02:15 PM   #7
djracer
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Re: Bolt In 12 Bolt Or 9" Rear

you can probably bolt it up without tacking it till you set the angle with a gauge. You really need a lift that leaves the chassis loaded like they use at allot of muffler shops. Or jack it up and sit it on cinder blocks or wood boxes.
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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!
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Old 10-30-2008, 07:17 PM   #8
kwhite4
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Re: Bolt In 12 Bolt Or 9" Rear

I also have a Moser Fab 9 in my truck. Truck had leaf springs but I went with ladder bars that are fully adjustable, works well for me so far.
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Old 10-30-2008, 08:01 PM   #9
Garagedude
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Re: Bolt In 12 Bolt Or 9" Rear

I have a 12 bolt eaton posi, richmond gears, moser axles and its held up fine but then again I haven't thrown 700 horses at it either.
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Old 10-30-2008, 10:35 PM   #10
djracer
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Re: Bolt In 12 Bolt Or 9" Rear

I have beat on a couple of 9 inches and they are tough.
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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!
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Old 10-31-2008, 03:27 AM   #11
WhiteStar
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Re: Bolt In 12 Bolt Or 9" Rear

Thanks for the replies.Motor Came off the dyno Today,Wasnt terribly Impressive, 614 Hp at 6000, and 625 Ft Lbs at 4000, Hopefully N20 will get it in The 800HP Range, Trying to go for the sleeper no roll cage,Spare Tire Bolted in the Bed ,Carry The front wheels Past The 60 Ft Beams Look/Approach. We shall see ,I guess.
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Old 11-12-2008, 02:06 PM   #12
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Re: Bolt In 12 Bolt Or 9" Rear

Moser,DTS or Currie all make housings to fit our trucks.DTS did the rear for Copperhead,I think they are located in Michigan,Brian
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Old 11-13-2008, 12:15 AM   #13
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Re: Bolt In 12 Bolt Or 9" Rear

614 Hp at 6000, and 625 Ft Lbs at 4000

You big block guys are making me think I should sell my LS1 and go old school big block. But then again, it is fun seeing the face of some big block guys when I go around them. I thought I was going to get pounded by a very nice sounding big block on spray. Ended up passing him by the 1/8 mile marker.
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------Motor---------------Bottle
60'---1.53---------------1.41
1/8---6.58 @ 105.92----5.87 @ 118.41
1/4---10.38 @ 126.97----9.24 @ 142.49

Last edited by Super73; 11-13-2008 at 12:15 AM.
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