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Re: New best..... The good, the bad, and the ugly.
[Re: Thumperdart]
#1263406
07/30/12 01:57 PM
07/30/12 01:57 PM
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Joined: Jan 2003
Posts: 6,266
Renton Washington
Triple Threat
master
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master
Joined: Jan 2003
Posts: 6,266
Renton Washington
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Quote:
Can you say spool? Been driving racing w/one for years in my WEAK 8 3/4 w/30 spline Dutchman axles..........
His car is a bit much of a street car for that. And with stock axles and a heavy car I don't think its a good idea. I have a spool in my car, It can be done, but you can tell its there and I don't think its the right decision in this case.
My dads challenger lunched two 8 3/4's before he switched to a dana, brothers car also killed 2 center sections before switching. Both were high 11 second cars as well, stock but rebuilt center sections. I made the switch before reaching that point.
IMO if you plan on keeping the car for a long time, a Dana is the way to go, albeit more expensive in the short term, probably a worthwhile investment in the long run. The locker ($500) in your 8.75 might get you bye but you still have stock 30 spline axles and the small R&P as a weak link. Axles are another $300.
If you need a center section until you decide what you want to do, I have the one out of my dart, 3.91's, just sitting here you can borrow.
-Dustin
67 Dart, 9 second, 392" G3 Hemi
68 Barracuda 340 F/SA
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Re: New best..... The good, the bad, and the ugly.
[Re: Triple Threat]
#1263407
07/30/12 02:02 PM
07/30/12 02:02 PM
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Joined: Jul 2004
Posts: 19,317
State of confusion
Thumperdart
I Live Here
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I Live Here
Joined: Jul 2004
Posts: 19,317
State of confusion
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Good points............what works for some of us doesn`t work for all and stock axles don`t belong in many of the cars on here in my opinion.
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
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Re: New best..... The good, the bad, and the ugly.
[Re: StealthWedge67]
#1263408
07/30/12 02:38 PM
07/30/12 02:38 PM
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Joined: May 2003
Posts: 1,751
Graham, WA
Polarapete
top fuel
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top fuel
Joined: May 2003
Posts: 1,751
Graham, WA
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The offer still stands. The Dana is just resting in my garage and taking up valuable space. The project can be a lot cheaper than $1,200.00! I can clean off the axle tubes (remove all existing mounts) and I have an industrial chop saw that can cut the tubes squarely to your specs. New Spring perches are cheap and you can get 8 3/4 / Dana billet housing ends from Morrison for under $150.00, then reuse your existing brakes, bend some new brake lines. This unit has a rebuilt PowerLock diff with 4.10s (the stongest OEM LS), but I don't know the spline count. I do have another rebuilt PowerLock with 30 spline spiders and you could have that as part of the deal and reuse your 8 3/4 axles. You and I can do most of this together and the only thing you will need a pro shop to do is to jig weld the housing ends to the tubes, shorten the drive shaft and match the pinion yoke. And I am willing to wait for my money or do some trading.
1986 Dodge Ramcharger 440 2wd, Bracket Racer Under Construction
1998 Ram 2500 QuadCab, new daily driver.
2008 Honda Element
2014 Carry-On 7x14 Cargo Trailer
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Re: New best..... The good, the bad, and the ugly.
[Re: Polarapete]
#1263409
07/30/12 02:44 PM
07/30/12 02:44 PM
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Joined: Jan 2003
Posts: 6,266
Renton Washington
Triple Threat
master
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master
Joined: Jan 2003
Posts: 6,266
Renton Washington
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Narrowing is $150 job, I can give you the number to a few different shops locally that will do it to your specs.
-Dustin
67 Dart, 9 second, 392" G3 Hemi
68 Barracuda 340 F/SA
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Re: New best..... The good, the bad, and the ugly.
[Re: Polarapete]
#1263411
07/30/12 03:28 PM
07/30/12 03:28 PM
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Joined: Aug 2003
Posts: 43,173
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,173
Bend,OR USA
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I have a Dana 60-2 that came out of the front end of a 4 wheel drive pick up in a junk yard, it has 2.5 inch diamteter axle tubes, not 3.0 inch  I was planning on having new chromemoly axle tubes installed in it, it was hit by a train and bent the original tubes badly, by Dutchmen but changed my mind when I was able to buy a regular Dana 60 pick up rear end for $200,00 out of a Dodge 3/4 ton van  I use to buy Dana 60 out of junkyards in the past tha had a bad end on one side for $75.00, some had posi and 4.56 ratio  Others did not have posi or desireable gear ratio, some had bad gears  As far as the axle splines the later, up to 1970 I think, GM Dana 60 had 30 spline axles in them stock, the 8 3/4 axles slide right in 
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: New best..... The good, the bad, and the ugly.
[Re: Cab_Burge]
#1263412
07/30/12 04:11 PM
07/30/12 04:11 PM
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Joined: May 2003
Posts: 1,751
Graham, WA
Polarapete
top fuel
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top fuel
Joined: May 2003
Posts: 1,751
Graham, WA
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The rear that I have is definitely a Dana 60-2 (cast 60-2)and I measure the axle tubes as 2.875. I understood that front Dana 60s were OEM reverse rotation and only found in 1 ton and bigger 4x4s and for that reason they were marked as "61", but I have never seen one myself. Pete
1986 Dodge Ramcharger 440 2wd, Bracket Racer Under Construction
1998 Ram 2500 QuadCab, new daily driver.
2008 Honda Element
2014 Carry-On 7x14 Cargo Trailer
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Re: New best..... The good, the bad, and the ugly.
[Re: Polarapete]
#1263413
07/31/12 01:38 AM
07/31/12 01:38 AM
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Joined: Aug 2003
Posts: 43,173
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,173
Bend,OR USA
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Quote:
The rear that I have is definitely a Dana 60-2 (cast 60-2)and I measure the axle tubes as 2.875. I understood that front Dana 60s were OEM reverse rotation and only found in 1 ton and bigger 4x4s and for that reason they were marked as "61", but I have never seen one myself. Pete
The Dana 61 where used in 3/4 ton trucks two wheel drive rear ends, mainly the 1973 to 1976 or so 360 FE engined powered commercial Ford truck fleet orders, with the 3.30 gear sets, I turned one down that was free years ago   I have tried to contact Dana customer support to see if a regular rear end gear set will work in mine, no luck on contacts, another reason I haven't pursued using it  
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: New best..... The good, the bad, and the ugly.
[Re: Cab_Burge]
#1263414
07/31/12 11:57 AM
07/31/12 11:57 AM
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Joined: Jul 2006
Posts: 4,319
Puyallup, WA
StealthWedge67
OP
master
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OP
master
Joined: Jul 2006
Posts: 4,319
Puyallup, WA
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This sucks. I'm not sure what to do..... I know that going the Dana route is what most will suggest, but I really do believe that an 8-3/4" with a Detroit TruTrac diff and a set of aftermarket axles is going to stand up to my car just fine, and I can do all of that myself for under $700. I don't plan on going too much faster, as I really don't want a roll bar in this car. The diff that broke was a rebuilt powerlock unit in the same case that gave me trouble last year. I called Eaton yesterday, and the tech there said that the Detroit TruTrac will handle everything I can throw at it at my cars performance level. The issues with the Dana are all the small stuff that adds up. Brake lines, axle tube ends, axle redrilling, shortening my driveline.... I don't see myself getting out of that project for much less than a grand. The other issue is that it's got 4.10's in it. I really don't want to go DEEPER than I have now. 3.91's are steep enough! Sorry to make you wait, Pete. and thanks so much for the offer to help. I really do appreciate it! I'll have a decision made here soon. Feel free to add any advice you may have to confuse me even further... 
LemonWedge - Street heavy / Strip ready - 11.07 @ 120
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Re: New best..... The good, the bad, and the ugly.
[Re: StealthWedge67]
#1263416
07/31/12 12:36 PM
07/31/12 12:36 PM
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Joined: Jul 2004
Posts: 19,317
State of confusion
Thumperdart
I Live Here
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I Live Here
Joined: Jul 2004
Posts: 19,317
State of confusion
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I`d stick w/the 8 3/4 myself and I guess you could add the one billet cap and some good axles..............how much does it weigh w/you on board. And as said above, a back brace.......... 
Last edited by Thumperdart; 07/31/12 12:37 PM.
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
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Re: New best..... The good, the bad, and the ugly.
[Re: 383man]
#1263418
07/31/12 03:10 PM
07/31/12 03:10 PM
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Joined: Jul 2006
Posts: 4,319
Puyallup, WA
StealthWedge67
OP
master
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OP
master
Joined: Jul 2006
Posts: 4,319
Puyallup, WA
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Ron, Which Detroit differential do you run? There's the "locker" which I understand is not suitable for street driving, because it clunks obnoxiously when pressure is applied and removed from it. Then there's the Detroit TruTrac, which is what I'm considering.
I typically get to the track 3 or 4 times a year, Ron, and I do enjoy racing the car. I want it to be able to handle the stresses of running mid to high 11's.
Last time I weighed the car, it was at 3770 with me in it. That was before the new motor which has alum. Heads and the split mono springs. I'd guess it at about 3725 right now???
How much are billet caps, and can I bolt those right on? Or do I have to have the case machined to accept them?
Last edited by GEnsrud; 07/31/12 03:14 PM.
LemonWedge - Street heavy / Strip ready - 11.07 @ 120
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Re: New best..... The good, the bad, and the ugly.
[Re: Cab_Burge]
#1263421
07/31/12 05:04 PM
07/31/12 05:04 PM
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Joined: Jul 2004
Posts: 19,317
State of confusion
Thumperdart
I Live Here
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I Live Here
Joined: Jul 2004
Posts: 19,317
State of confusion
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Good to know Cab on the machining on cap only cos I`ve been told the case needed attention too to make sure it`s perfectly round. I assume you`d use a dial bore gauge after grinding/torquing cap to verify roundness no?
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
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Re: New best..... The good, the bad, and the ugly.
[Re: Cab_Burge]
#1263422
07/31/12 05:08 PM
07/31/12 05:08 PM
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Joined: Mar 2009
Posts: 1,058
bigfork mn
dragram440
super stock
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super stock
Joined: Mar 2009
Posts: 1,058
bigfork mn
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I also run the stock caps. Yes Im probly asking for trouble but it has been working good for the last three years. My car really doesnt 60' very good so im thinking thats probly why it hasnt broke.From the info everyone on here it is way past its life expectancy!
Last edited by dragram440; 07/31/12 05:10 PM.
67' charger 499 RB
10.57 at 127
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Re: New best..... The good, the bad, and the ugly.
[Re: StealthWedge67]
#1263424
07/31/12 06:41 PM
07/31/12 06:41 PM
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Joined: Jan 2003
Posts: 27,421
Balt. Md
383man
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 27,421
Balt. Md
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Quote:
Ron, Which Detroit differential do you run? There's the "locker" which I understand is not suitable for street driving, because it clunks obnoxiously when pressure is applied and removed from it. Then there's the Detroit TruTrac, which is what I'm considering.
I typically get to the track 3 or 4 times a year, Ron, and I do enjoy racing the car. I want it to be able to handle the stresses of running mid to high 11's.
Last time I weighed the car, it was at 3770 with me in it. That was before the new motor which has alum. Heads and the split mono springs. I'd guess it at about 3725 right now???
How much are billet caps, and can I bolt those right on? Or do I have to have the case machined to accept them?
I run the Detroit Locker. It has a little clunk sometimes but nothing that bad. You just have to know not to lay into it when you make a turn until you straighten it up so the axle locks back up. My car weighs 3700 lbs and I put 7 passes on it last year with the new eng. The Locker is the only part in my 8-3/4 thats not stock. I still have stock axles and caps. I did not update it as I plan to go to a Dana when I can afford it. Also my rear is not braced as I did not worry about it when running mid 11's since I only race it a few times a year. Even running 10's its holding up fine but I think I am running on borrowed time. Ron
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I 
every pass..............