8 3/4 to a Dana
#2744472
02/19/20 01:51 AM
02/19/20 01:51 AM
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Joined: Nov 2004
Posts: 3,517 pacific northwest
Stroker Scamp
OP
master
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OP
master
Joined: Nov 2004
Posts: 3,517
pacific northwest
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I am going to order up a Dana 60 for the Scamp I am assuming will need to get a new drive shaft? Info appreciated
footbrake N/A SB 408 Scamp 10.10 @ 132 street/strip 73 Duster 340 street strip 12.79 @ 105
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Re: 8 3/4 to a Dana
[Re: Stroker Scamp]
#2744474
02/19/20 02:13 AM
02/19/20 02:13 AM
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Joined: Aug 2011
Posts: 2,853 Pattison Texas
CSK
master
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master
Joined: Aug 2011
Posts: 2,853
Pattison Texas
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I am going to order up a Dana 60 for the Scamp I am assuming will need to get a new drive shaft? Info appreciated When I did the swap had to get the shaft shortened, get the 60 installed & see if the old shaft fits, if not measure & get it fixed.
1968 Charger COLD A/C Hilborn EFI 512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim 2020 T/A 392 Stock 11.79 @ 114.5
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Re: 8 3/4 to a Dana
[Re: Stroker Scamp]
#2744494
02/19/20 08:21 AM
02/19/20 08:21 AM
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Joined: Jan 2005
Posts: 1,772 Keymar, MD
DusterKid
top fuel
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top fuel
Joined: Jan 2005
Posts: 1,772
Keymar, MD
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I am going to order up a Dana 60 for the Scamp I am assuming will need to get a new drive shaft? Info appreciated If rear ends are installed in the same location your drive shaft will have to be shorten.
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Re: 8 3/4 to a Dana
[Re: DusterKid]
#2744505
02/19/20 09:09 AM
02/19/20 09:09 AM
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Joined: Jan 2003
Posts: 13,351 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,351
Marion, South Carolina [><]
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I am going to order up a Dana 60 for the Scamp I am assuming will need to get a new drive shaft? Info appreciated If rear ends are installed in the same location your drive shaft will have to be shorten. Somewhere around an inch if I recall correctly.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: 8 3/4 to a Dana
[Re: Stroker Scamp]
#2744514
02/19/20 09:41 AM
02/19/20 09:41 AM
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Joined: Oct 2007
Posts: 4,205 New York
polyspheric
master
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master
Joined: Oct 2007
Posts: 4,205
New York
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Is the pinion stem at the same vertical height? The Ford 9" is lower, affects the angle.
Boffin Emeritus
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Re: 8 3/4 to a Dana
[Re: 340Cuda]
#2744596
02/19/20 01:10 PM
02/19/20 01:10 PM
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Joined: Oct 2007
Posts: 4,205 New York
polyspheric
master
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master
Joined: Oct 2007
Posts: 4,205
New York
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IIRC a test was run with an 8-3/4 vs. 60, and the ET was really close. The extra efficiency almost exactly made up for the extra 75 lb. weight gain. IDR anything easy that saves weight on the Dana, though. Smaller brakes?
Boffin Emeritus
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Re: 8 3/4 to a Dana
[Re: polyspheric]
#2744603
02/19/20 01:28 PM
02/19/20 01:28 PM
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Joined: Jan 2003
Posts: 1,289 Tucson AZ,
MadMopars
pro stock
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pro stock
Joined: Jan 2003
Posts: 1,289
Tucson AZ,
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IIRC a test was run with an 8-3/4 vs. 60, and the ET was really close. The extra efficiency almost exactly made up for the extra 75 lb. weight gain. IDR anything easy that saves weight on the Dana, though. Smaller brakes? Although I don't have the weights in front of me, going with a spool should be worth something.
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Re: 8 3/4 to a Dana
[Re: an8sec70cuda]
#2744621
02/19/20 02:26 PM
02/19/20 02:26 PM
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Joined: Jan 2003
Posts: 25,729 Rio Linda, CA
John_Kunkel
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,729
Rio Linda, CA
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If rear ends are installed in the same location your drive shaft will have to be shorten. Somewhere around an inch if I recall correctly. 1 1/8" to be exact Centerline of Axle Shaft to Center of Universal Yoke 8 3/4" 12.35" 9 3/4" 13.47"
The INTERNET, the MISinformation superhighway
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Re: 8 3/4 to a Dana
[Re: John_Kunkel]
#2744850
02/20/20 08:53 AM
02/20/20 08:53 AM
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Joined: Jan 2003
Posts: 13,351 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,351
Marion, South Carolina [><]
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Going from a locker/suregrip to a spool in a Dana is worth something like 20 lbs. Might be more than that actually.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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