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03-01-2010, 07:05 PM
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#21
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Name: zstroken
Title: For $$$ your name here
Status: Not Here
Join Date: Sep 2006
Location: Western Michigan(by the lake)
Member`s Gallery
Posts: 23,151
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I have the RD35 I think. I also have the RD80.
__________________
2008 4x4 Megacab, 68RFE
97 Dodge gone....
24V P-Pump Mafia member #1(retired)
Thanks to Mumau Diesel, Goerend Transmission, Northeast Diesel Service!
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03-01-2010, 07:08 PM
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#22
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Name: bh10
Title: Web Wrencher
Status: Not Here
Join Date: Feb 2008
Location: Iowa, now in Georgia, again
Member`s Gallery
Posts: 1,974
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Quote:
Originally Posted by hummin cummins
Don't know, I thought the high pinions were weaker than the standard 9".
We currently have well over 1500 hp and have never hurt our dana 70.
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Nice, what are you guys running for a diff.?
Quote:
Originally Posted by Supershafts
Guessing i haven't what ! ? ....seen that a 9" NEEDS the other bearing from the poor design of the extremely close 2 pinion bearing being on top of each other....
What else do you think i haven't seen..... I bet you think that's a great design...
I build rears, im telling you, the 9" is not stronger then the D-60, let alone the D-70... The 9" isn't much lighter then the D-60
The D-70's only issues is the cross bar in the spider assembly...so you can do 2 things, a spool for the 70 or a detroit
Saying the hp loss is a mute point....is incredibly INSANE, any hp loss in a performance vehicle is not a moot point....years ago we dyoned 4 rears, and the 9" was more than 10hp loss, (im going to try and find that) and you don't want to lose any HP in the driveline in any vehicle, let alone a heavy one.
AS for the high pin 9", you are now racing on the coast side of a ring gear, not a good idea at all...
Everyone runs a 9" for the story of there is more available... and everyone that says that, doesn't change there gear ratios like they should if that is what there worried about...
Many rears are stronger and don't soak up as much hp......
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Well, I dont think its as good as the 14bff its not bad, better IMO then the small pinion in the d70u.
I can tell you weight wise theres a huge difference up 250lbs, the 9" Ive installed I could handle by myself fairly ease, a full floater d60 I struggled with, and as for the high pinion that was my rock crawler coming out, I honestly have no idea what they can hold HP wise.
The reason I say it's a mute point, b/c if I lose a tenth b/c of it, I really dont care this isnt a purpose built drag truck. There's always  if I need to go faster.
But I guess now its more of a mute point b/c it looks like my assumptions about the d70 were wrong about drag racing, I let some sled pullers get in my head.  
__________________
14 CTD
95 12v
Big Thanks To PURE DIESEL POWER CSnyder @ Snyder Motorsports
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03-01-2010, 07:39 PM
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#23
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Name: Supershafts
Title: We race, so You win
Status: Not Here
Join Date: Feb 2010
Location: Long Island, N.Y.
Member`s Gallery
Posts: 421
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Is this a sled truck or drag or street and strip or ?
__________________
We Race!! We Vote!!
71 Dart 340, 73 RR 440-6pk clone, 78 Magnum GT, 85 W-350 Power Ram le cc, 91 Dodge daytona, 95 Jeep GC, 99 Dakota, 08 Dodge Ram 6.7
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03-02-2010, 06:36 AM
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#24
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Name: hummin cummins
Title: Too Much Time
Status: Not Here
Join Date: Dec 2006
Member`s Gallery
Posts: 1,738
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Quote:
Originally Posted by bh10
Nice, what are you guys running for a diff.?
Well, I dont think its as good as the 14bff its not bad, better IMO then the small pinion in the d70u.
I can tell you weight wise theres a huge difference up 250lbs, the 9" Ive installed I could handle by myself fairly ease, a full floater d60 I struggled with, and as for the high pinion that was my rock crawler coming out, I honestly have no idea what they can hold HP wise.
The reason I say it's a mute point, b/c if I lose a tenth b/c of it, I really dont care this isnt a purpose built drag truck. There's always if I need to go faster.
But I guess now its more of a mute point b/c it looks like my assumptions about the d70 were wrong about drag racing, I let some sled pullers get in my head. |
Quote:
Originally Posted by Supershafts
Is this a sled truck or drag or street and strip or ?
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It is a stock dana 70 with drum brakes and it is a dedicated drag truck.
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03-02-2010, 10:49 AM
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#25
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Name: 12vchevydually
Title: my mind is churnin!
Status: Not Here
Join Date: Jun 2006
Location: Jacksonville,FL
Member`s Gallery
Posts: 857
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Not that i have beaten on my 9in too much yet, I am very happy with my slicked drag strip toy. Locker and 31 spline Moser.
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03-02-2010, 11:12 AM
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#26
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Name: mondtster
Title: Too Much Time
Status: Not Here
Join Date: Jan 2009
Location: k74
Member`s Gallery
Posts: 1,206
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It wasn't mentioned what trans was being run, but an automatic should help the longevity if the 9" is pursued.
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03-02-2010, 09:07 PM
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#27
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Name: Supershafts
Title: We race, so You win
Status: Not Here
Join Date: Feb 2010
Location: Long Island, N.Y.
Member`s Gallery
Posts: 421
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Quote:
Originally Posted by hummin cummins
It is a stock dana 70 with drum brakes and it is a dedicated drag truck.
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Then your after all the hp and gains you can get....
Stay with the 70, get the spool, you could even lighten that a little more, shave the ring a little and use a lighter oil go from a 90 to 50....
You would be surprised at what you can gain with lighter oil and or getting the oil to temp 1st before making your pass....
If this is a drag only truck.....
__________________
We Race!! We Vote!!
71 Dart 340, 73 RR 440-6pk clone, 78 Magnum GT, 85 W-350 Power Ram le cc, 91 Dodge daytona, 95 Jeep GC, 99 Dakota, 08 Dodge Ram 6.7
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03-09-2010, 08:17 PM
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#28
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Name: rileydsking
Title: Too Much Time
Status: Not Here
Join Date: Feb 2008
Location: sanford fl
Member`s Gallery
Posts: 928
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i have to agree on the 9" being junk unless you run a circle track car and go to a new track every weekend.
stay with a 60 or 70
__________________
01 excursion,p-pump 24v/nv4500 360/877
35 IH C1 12v/47re
07 hayabusa
64 coupe deville
94 lightning
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03-10-2010, 12:16 AM
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#29
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Name: DieselWrencher
Title: 6cyl Vette
Status: Not Here
Join Date: Dec 2006
Location: Mitchellville, Ia
Member`s Gallery
Posts: 2,886
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The 9" is far from junk. They cost more to build to suit big torque in a heavy vehicle. But they are no where near junk.
__________________
1968 Corvette 12v Cummins Compounds 47RH
1976 K30 CC SWB 12v 47RH
2000 Excursion VE 24v 47RH 4x4
1972 K30 Longhorn P-Pumped 24v 47RH Compounds
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03-10-2010, 12:35 AM
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#30
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Name: mondtster
Title: Too Much Time
Status: Not Here
Join Date: Jan 2009
Location: k74
Member`s Gallery
Posts: 1,206
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Quote:
Originally Posted by DieselWrencher
The 9" is far from junk. They cost more to build to suit big torque in a heavy vehicle. But they are no where near junk.
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They have their advantages, but IMHO the main reason that they aren't junk is because of how much aftermarket support there is for them. If there weren't aftermarket thirds, larger diameter shafts, improved gear sets, etc. I don't think we would even have a thread like this.
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03-10-2010, 08:26 AM
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#31
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Name: seeker1056
Title: gear head
Status: Not Here
Join Date: Aug 2006
Member`s Gallery
Posts: 1,001
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I would think that if the "built" variations of the 9" Ford will withstand 8000 hp in a Nitro fuel dragster, that the weenie little 1200 or so ft lbs from a diesel would be a non issue
;o)
__________________
91 F-350, custom built 12v 2.8 cummins,
Headin north of 7 
Colt Cams, H&H OffRoad, Arties Transmissions
Toms Contracting, AFP Towing, Logix, Linwood Homes
M&C Hydraulics
Custom Engine by C&C Engines
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03-10-2010, 12:56 PM
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#32
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Name: DieselWrencher
Title: 6cyl Vette
Status: Not Here
Join Date: Dec 2006
Location: Mitchellville, Ia
Member`s Gallery
Posts: 2,886
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Most of those are a 10" or 10.5" and no longer a 9". Just based off the 9" design.
__________________
1968 Corvette 12v Cummins Compounds 47RH
1976 K30 CC SWB 12v 47RH
2000 Excursion VE 24v 47RH 4x4
1972 K30 Longhorn P-Pumped 24v 47RH Compounds
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03-10-2010, 02:39 PM
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#33
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Name: dvst8r
Title: Unobtainium
Status: Not Here
Join Date: Feb 2008
Location: Airdrie, AB
Member`s Gallery
Posts: 2,053
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We are going to try a 9" in a sheet metal housing, 40 spline shafts, spool, ect... I will report back at the end of the season and let you know how it went. First pass isn't planned till end of May ish. It will be running in NHRDA Pro Street @ ~ 4500lbs.
__________________
Brett
Assistant to the Manager, Ragged Edge Racing.
Quote:
Originally Posted by RonA
If i had some ham, I could have ham and eggs, if i had some eggs.
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03-10-2010, 08:29 PM
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#34
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Name: DieselWrencher
Title: 6cyl Vette
Status: Not Here
Join Date: Dec 2006
Location: Mitchellville, Ia
Member`s Gallery
Posts: 2,886
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I bet it'll be fine.
__________________
1968 Corvette 12v Cummins Compounds 47RH
1976 K30 CC SWB 12v 47RH
2000 Excursion VE 24v 47RH 4x4
1972 K30 Longhorn P-Pumped 24v 47RH Compounds
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03-10-2010, 08:49 PM
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#35
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Name: Supershafts
Title: We race, so You win
Status: Not Here
Join Date: Feb 2010
Location: Long Island, N.Y.
Member`s Gallery
Posts: 421
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Quote:
Originally Posted by DieselWrencher
Most of those are a 10" or 10.5" and no longer a 9". Just based off the 9" design.
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Actually 11" and different other then looks like a bigger 9"
There are modular 12 bolts that don't soak up hp...
__________________
We Race!! We Vote!!
71 Dart 340, 73 RR 440-6pk clone, 78 Magnum GT, 85 W-350 Power Ram le cc, 91 Dodge daytona, 95 Jeep GC, 99 Dakota, 08 Dodge Ram 6.7
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03-10-2010, 09:02 PM
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#36
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Name: Boostediesel
Title: Boost Addict
Status: Not Here
Join Date: Oct 2009
Member`s Gallery
Posts: 575
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9 inch rears are far from junk, there were plenty of 3500hp doorslammers running high 6's in the 1/4 running Mark Williams fabed 9 inch rears, and they have been proven over the years way before the 2 words diesel & performance were even concieved.
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03-11-2010, 01:44 PM
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#37
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Name: RyanB
Title: Too Much Time
Status: Not Here
Join Date: Aug 2006
Location: Southern Ontario, Canada
Member`s Gallery
Posts: 977
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There is a Super Mod 4x4 gasser up here Cut tired truck, running a custom Ford 9inch front axle...seems to be holding up the couple of times I saw it run last year. I belive he is running D60 outer spindles.
Ryan
__________________
2009 Tube Chassis Super-Mod Dodge
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03-11-2010, 02:28 PM
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#38
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Name: DieselWrencher
Title: 6cyl Vette
Status: Not Here
Join Date: Dec 2006
Location: Mitchellville, Ia
Member`s Gallery
Posts: 2,886
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I have seen guys around here running the custom 9" fronts in boggers and rock climbers and the owners love them. One guy even had 44's on his rig. I was really surprised it lives with those huge tires. He has a 450hp LS1 and he isn't light on the throttle. Apparently they are pretty strong.
__________________
1968 Corvette 12v Cummins Compounds 47RH
1976 K30 CC SWB 12v 47RH
2000 Excursion VE 24v 47RH 4x4
1972 K30 Longhorn P-Pumped 24v 47RH Compounds
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03-11-2010, 03:07 PM
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#39
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Name: rileydsking
Title: Too Much Time
Status: Not Here
Join Date: Feb 2008
Location: sanford fl
Member`s Gallery
Posts: 928
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i just think if you are going to the expense of buying everything in the axle aftermarket,why not use something more efficent with less hp loss.
its like saying you will only run a 350 chevy because they are cheap and popular when there are better things out there.
__________________
01 excursion,p-pump 24v/nv4500 360/877
35 IH C1 12v/47re
07 hayabusa
64 coupe deville
94 lightning
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03-11-2010, 11:30 PM
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#40
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Name: 12vchevydually
Title: my mind is churnin!
Status: Not Here
Join Date: Jun 2006
Location: Jacksonville,FL
Member`s Gallery
Posts: 857
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9in suck don't use em end of story!!!
__________________
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