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Re: Dana or 8 3/4.. I know.. I know, but just asking.. [Re: Mopar_Mike] #818891
10/02/10 12:49 AM 10/02/10 12:49 AM
Joined: Dec 2005
Posts: 4,231
State of retirement
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52savoy Offline
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If it was my car, I would put a few runs on it and see how it reacts(unless you can find a cheap junkyard Dana). It might hold up with that ratio(contact pattern) and small tires..
I ran a 8 3/4" in my Hemi roadrunner for 5 years and the only thing I broke was the suregrip(year 2). Then a spool went in it.
The specs on my car at that time..

3500lbs, 14X32 slicks, 5.33 and 5.50 pro gears,Strange axles and spool.... 10.60at 128+mph. I put a Dana in it because I found one with 35 spline axles for $100.


for what it's worth..Jimmy Addison used an 8 3/4" in the Silver Bullet.
Re: Dana or 8 3/4.. I know.. I know, but just asking.. [Re: dragram440] #818892
01/28/11 01:35 AM 01/28/11 01:35 AM
Joined: Aug 2010
Posts: 40
Washington
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Quote:

It is hard to spend the money once when the bolth of us already have 8 3/4's done. So its twice for us either way!!



Let me know how much it cost's you to fix the 8 3/4 AND transmission when it breaks! I've been there done that and it's not cheap. When I decided enough is enough I got a Dana from a pickup, knocked out the tubes installed chrome moly tubes, Mark Williams 40 spline gun drilled axles, MW aluminum spool, MW housing ends and Richmond pro gears for 2400.00 3yrs ago. Of course you need to find a narrowing jig to use and do the work yourself! When I was done the Dana was only 3 pounds more than the 8 3/4 it replaced! You can still sell the 8 3/4 at this point.
Re: Dana or 8 3/4.. I know.. I know, but just asking.. [Re: SuperStock68Dart] #818893
01/28/11 04:57 PM 01/28/11 04:57 PM
Joined: Oct 2010
Posts: 126
Nevada
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theman440 Offline
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Take your rear wheels and drums/rotors off. Measure from axle flange to axle flange. Call Moser and order one without spring perches installed. Swap brakes, install, set pinion angle and weld up perches. I was quoted 1800.00 plus freight, comes with spool, 35 spline axles, green bearings and choice of ratio. Don't forget to shorten driveshaft.

Re: Dana or 8 3/4.. I know.. I know, but just asking.. [Re: dragram440] #818894
01/28/11 07:11 PM 01/28/11 07:11 PM
Joined: Aug 2003
Posts: 3,245
Between a rock & a hard place
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Quote:

where does a guy buy a dana? Any Idea on what they are going for?



Get a Dana from a pick up at Pick-n-Pull and have it narrowed, new ends, etc. You can reuse your axles if the same length my shorten them a tad...
Re: Dana or 8 3/4.. I know.. I know, but just asking.. [Re: dragram440] #818895
01/28/11 07:15 PM 01/28/11 07:15 PM
Joined: Aug 2003
Posts: 3,245
Between a rock & a hard place
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Quote:

I would love to sell it but who would want one set up like this. If your going this route you might as well go with a 60. I was thinking of putting a 9" in it but to buy a good third member they arent cheap either. Maybe the 8 3/4 is broke now and thats what killed my trans.



Gosh I really hate to and sure don't want to beat a dead horse, but...9" phords break in heavy cars, too. Three words: Dana, Dana, Dana.
Re: Dana or 8 3/4.. I know.. I know, but just asking.. [Re: cudadoug] #818896
01/28/11 07:52 PM 01/28/11 07:52 PM
Joined: Feb 2007
Posts: 5,080
organ
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maximum entropy Offline
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Quote:

Quote:

I would love to sell it but who would want one set up like this. If your going this route you might as well go with a 60. I was thinking of putting a 9" in it but to buy a good third member they arent cheap either. Maybe the 8 3/4 is broke now and thats what killed my trans.



Gosh I really hate to and sure don't want to beat a dead horse, but...9" phords break in heavy cars, too. Three words: Dana, Dana, Dana.


i'd like to add one more word- dana.

for what is the good life if not doing things thoughtfully?
Re: Dana or 8 3/4.. I know.. I know, but just asking.. [Re: mshred] #818897
01/29/11 03:00 AM 01/29/11 03:00 AM
Joined: Oct 2004
Posts: 8,165
Left Coast
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Quote:

Quote:

I would love to sell it but who would want one set up like this.



never know until you try



They sell and they're fine for street cars.
Re: Dana or 8 3/4.. I know.. I know, but just asking.. [Re: BobR] #818898
01/29/11 04:46 AM 01/29/11 04:46 AM
Joined: Jan 2003
Posts: 5,875
communist bloc of new jersey
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Quote:

Sell the 8-3/4 while its still in one peice and then the cost of the dana wont be so bad




yea what he said
Re: Dana or 8 3/4.. I know.. I know, but just asking.. [Re: BobR] #818899
01/29/11 04:51 AM 01/29/11 04:51 AM
Joined: Jan 2004
Posts: 2,103
East Coast, NJ
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East Coast, NJ
I have SB 416 4 speed T/A. Slow compared to what these guys are talking and I broke TWO 8.75's so far. The money I have dumped in the 8.75's would have almost bought me a Dana. Now I don't race that car anymore and am finishing a mild 528 hemi car that I put a Dana in. I learned.

Chris from New Jersey
Re: Dana or 8 3/4.. I know.. I know, but just asking.. [Re: Mopar_Mike] #818900
01/29/11 08:57 AM 01/29/11 08:57 AM
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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If I was gonna spend $$ for a race rear end it would be for a 9" because they have way more parts available for them and are alot easier to change ratios.

Don't be a dumb, buy a 9".
Re: Dana or 8 3/4.. I know.. I know, but just asking.. [Re: Mopar_Mike] #818901
01/29/11 09:49 AM 01/29/11 09:49 AM
Joined: Jun 2003
Posts: 52,972
Romeo MI
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You never said the weight BUT I run a 8 3/4 and have
for years... but my car is light... I currently run
the alum center and a back brace.... I have no plans
on putting a Dana in
Re: Dana or 8 3/4.. I know.. I know, but just asking.. [Re: SuperStock68Dart] #818902
01/29/11 11:13 AM 01/29/11 11:13 AM
Joined: Jan 2003
Posts: 9,986
Frostbitefalls MN (Rocky&Bullw...
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Quote:

Spend the money once and be done with it, go with the Dana. The 8 3/4 will eventually break and will take the trans with, at least it did in my car. Dana has been in the car for 3 seasons have not touched it. 1.3 60's @ 3500#


Tally the cost of the broken 8 3/4 plus the trans plus at least one lost race days worth of expenses then add what you could get for it now and it will show you just how close you are to getting the Dana cheaply!

8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
Re: Dana or 8 3/4.. I know.. I know, but just asking.. [Re: mshred] #818903
01/29/11 11:25 AM 01/29/11 11:25 AM
Joined: Jan 2003
Posts: 16,923
NC
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Quote:

Quote:

It is hard to spend the money once when the bolth of us already have 8 3/4's done. So its twice for us either way!!



Sell the 8-3/4 while its still in one peice and then the cost of the dana wont be so bad

That is the right way to think about it. You might only get half what it cost to build that 8-3/4, but it will be a parts rear end (even harder to sell parts) when you break the gears, bend the housing, damage the trans sprag, etc.

1993 Daytona, 5.50 at 130mph (1/8) 1.19 sixty ft (PG). Link to 572 B1 - Part 1
Re: Dana or 8 3/4.. I know.. I know, but just asking.. [Re: gregsdart] #818904
01/29/11 11:32 AM 01/29/11 11:32 AM
Joined: Jan 2003
Posts: 32,394
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Quicktree Offline
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come on guys, everybody knows the 8 3/4 is bullet proof. thumperdart has been running one forever.

Re: Dana or 8 3/4.. I know.. I know, but just asking.. [Re: Quicktree] #818905
01/29/11 12:05 PM 01/29/11 12:05 PM
Joined: Mar 2005
Posts: 2,172
Ohio
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theclutcher Offline
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Ohio
Please, someone post the beaten horse.
Hey modds, why dont we just sticky a post like this so if anyone has a question like it they can refer to the sticky.
To the OP.
If you have to ask, you need one.

Re: Dana or 8 3/4.. I know.. I know, but just asking.. [Re: Challenger 1] #818906
01/29/11 12:16 PM 01/29/11 12:16 PM
Joined: Oct 2003
Posts: 11,684
W. Kentucky
justinp61 Offline
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W. Kentucky
Quote:

Don't be a dumb, buy a 9".



I guess I'm one of the many dummies here. Oh well we all can't be geniuses . It amazes how much people blow about 9" rears. If they are so strong why didn't Ford put them in their 3/4 ton trucks? A good 9" third member will cost as much or almost as much as a complete Dana.

Sell your 8 3/4" and buy a new Dana, I got alomst half of my Dana cost out of the 8 3/4. I broke one 8 3/4, had to tear the 727 down to check it out, that was enough for me.
Re: Dana or 8 3/4.. I know.. I know, but just asking.. [Re: justinp61] #818907
01/29/11 12:22 PM 01/29/11 12:22 PM
Joined: Jan 2003
Posts: 32,394
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Quicktree Offline
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Quote:

Quote:

Don't be a dumb, buy a 9".



I guess I'm one of the many dummies here. Oh well we all can't be geniuses . It amazes how much people blow about 9" rears. If they are so strong why didn't Ford put them in their 3/4 ton trucks? A good 9" third member will cost as much or almost as much as a complete Dana.

Sell your 8 3/4" and buy a new Dana, I got alomst half of my Dana cost out of the 8 3/4. I broke one 8 3/4, had to tear the 727 down to check it out, that was enough for me.

because a truck is a truck and they already had a truck rear, guess what it was? and when people suggest a 9" they are not talking a passenger type stock rear. it's an aftermarket race piece. like it or not the 9" race rear is the racers choice on 90% of the cars you see at the track.

Re: Dana or 8 3/4.. I know.. I know, but just asking.. [Re: Quicktree] #818908
01/29/11 12:31 PM 01/29/11 12:31 PM
Joined: Oct 2003
Posts: 11,684
W. Kentucky
justinp61 Offline
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Posts: 11,684
W. Kentucky
Quote:

Quote:

Quote:

Don't be a dumb, buy a 9".



I guess I'm one of the many dummies here. Oh well we all can't be geniuses . It amazes how much people blow about 9" rears. If they are so strong why didn't Ford put them in their 3/4 ton trucks? A good 9" third member will cost as much or almost as much as a complete Dana.

Sell your 8 3/4" and buy a new Dana, I got alomst half of my Dana cost out of the 8 3/4. I broke one 8 3/4, had to tear the 727 down to check it out, that was enough for me.

because a truck is a truck and they already had a truck rear, guess what it was? and when people suggest a 9" they are not talking a passenger type stock rear. it's an aftermarket race piece . like it or not the 9" race rear is the racers choice on 90% of the cars you see at the track.



I'll say 60%, there a lot of Danas where I race. For the costs I'll stay with my dana.
Re: Dana or 8 3/4.. I know.. I know, but just asking.. [Re: Quicktree] #818909
01/29/11 01:51 PM 01/29/11 01:51 PM
Joined: Jan 2003
Posts: 8,016
Polson, MT
DoctorDiff Offline
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Polson, MT
9" rearends are the small block Chevy of the rearend world. That doesn't make them the best choice for all applications, however.

1. A comparable drag style 9" is more expensive to build than a 35 spline Dana 60

2. A comparable drag style 9" weighs virtually the same as a Dana 60

3. A 9" runs hotter and robs more HP than a Dana 60

4. A 9(+)" style rearend built STRONGER than a Dana 60 costs MUCH MORE and the parts availability is MUCH LESS.

Contact info
Re: Dana or 8 3/4.. I know.. I know, but just asking.. [Re: DoctorDiff] #818910
01/29/11 02:10 PM 01/29/11 02:10 PM
Joined: Jan 2003
Posts: 32,394
Q
Quicktree Offline
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Quicktree  Offline
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Quote:

9" rearends are the small block Chevy of the rearend world. That doesn't make them the best choice for all applications, however.

1. A comparable drag style 9" is more expensive to build than a 35 spline Dana 60

2. A comparable drag style 9" weighs virtually the same as a Dana 60

3. A 9" runs hotter and robs more HP than a Dana 60

4. A 9(+)" style rearend built STRONGER than a Dana 60 costs MUCH MORE and the parts availability is MUCH LESS.

maybe so, but the dana is HP limited. the 9-9.5 and larger are not. for the average bracket racer there is nothing wrong with a dana. if they had a drop out center section it would be even better but that would make it a 9" based rear

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