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Driveshaft Length bee vs runner 4spd Dana
#1692702
10/31/14 12:04 AM
10/31/14 12:04 AM
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Joined: Oct 2003
Posts: 1,896
New England
Q5_Ed
OP
top fuel
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OP
top fuel
Joined: Oct 2003
Posts: 1,896
New England
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Is there any significant difference between the length of driveshafts between these 2 cars (69)
Looking at a shaft custom made for a bee and wondering if any issues with slightly longer ds for use in a roadrunner?
WANTED : ...A New Sponsor or Winning Lottery Ticket
69 A12 road runner ,Q5, post coupe, 4 speed, former Drag car restored to "Driver" condition in the early 90's, Showing some Patina. SS/E Track Record Holder 1980 10.40 @ 130mph
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Re: Driveshaft Length bee vs runner 4spd Dana
[Re: Q5_Ed]
#1692703
10/31/14 08:57 AM
10/31/14 08:57 AM
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Joined: Feb 2013
Posts: 305
Wisconsin
Big D A12
enthusiast
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enthusiast
Joined: Feb 2013
Posts: 305
Wisconsin
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The Road Runner is a bit shorter, .63 inch (5/8"). Part numbers and lengths:
RR - 2996560 50.39"
SB - 2996581 50.96"
Hope this helps.
D
Seeking 1969 Lynch Road fender tags/Build Sheets/Window Stickers/VIN - Over 2300 so far thanks to you!!
2018 Demon Challenger PY4 A8 Black Hood
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1969.5 A12 Super Bee WM21 V1H F6 D21
1969 Coronet RT B5 D32 M46 N96
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Re: Driveshaft Length bee vs runner 4spd Dana
[Re: fastmark]
#1692705
10/31/14 11:29 AM
10/31/14 11:29 AM
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Joined: Dec 2007
Posts: 18,157
Mass
DAYCLONA
I Live Here
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I Live Here
Joined: Dec 2007
Posts: 18,157
Mass
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Quote:
Where do you measure from? Center to Center on the u joints?
yes
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Re: Driveshaft Length bee vs runner 4spd Dana
[Re: Q5_Ed]
#1692706
10/31/14 11:38 AM
10/31/14 11:38 AM
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Joined: Dec 2007
Posts: 18,157
Mass
DAYCLONA
I Live Here
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I Live Here
Joined: Dec 2007
Posts: 18,157
Mass
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Quote:
Looking at a shaft custom made for a bee and wondering if any issues with slightly longer ds for use in a roadrunner?
A shaft too long (Dodge vs Ply swap)will fit, BUT when the suspension/axle compresses/pinion rotates upward on acceleration during it's travel it can force the yoke to bottom out in the tail shaft of the transmission often resulting in a busted tailshaft...the best way to measure for a shaft is to have the rear axle in place with the tires on the ground, tranny installed, proper driveline angles in place, the vehicle at curb weight (if possible) insert just the yoke in the tranny, pull it back out of the tranny a minimum of 3/4", and measure center to center from the u-joints from the yoke's u joint to the center of the pinions u joint for proper shaft dimensions
Mike
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Re: Driveshaft Length bee vs runner 4spd Dana
[Re: Q5_Ed]
#1692707
10/31/14 01:10 PM
10/31/14 01:10 PM
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Joined: Jan 2003
Posts: 75,043
U.S.S.A.
JohnRR
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I Win
Joined: Jan 2003
Posts: 75,043
U.S.S.A.
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Quote:
Is there any significant difference between the length of driveshafts between these 2 cars (69)
Looking at a shaft custom made for a bee and wondering if any issues with slightly longer ds for use in a roadrunner?
send me the specs of the shaft , if you don't use it I might be able to use it ...
also , if the price is right for the shaft and it's an HD piece you can always have it shortened ...
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Re: Driveshaft Length bee vs runner 4spd Dana
[Re: JohnRR]
#1692708
11/01/14 12:00 AM
11/01/14 12:00 AM
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Joined: Oct 2003
Posts: 1,896
New England
Q5_Ed
OP
top fuel
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OP
top fuel
Joined: Oct 2003
Posts: 1,896
New England
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Yes it HD and I'll have it shortened to spec if necessary it may only be 3/8 long... Thanks all 
WANTED : ...A New Sponsor or Winning Lottery Ticket
69 A12 road runner ,Q5, post coupe, 4 speed, former Drag car restored to "Driver" condition in the early 90's, Showing some Patina. SS/E Track Record Holder 1980 10.40 @ 130mph
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Re: Driveshaft Length bee vs runner 4spd Dana
[Re: Q5_Ed]
#1692709
11/01/14 02:47 AM
11/01/14 02:47 AM
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Joined: Jan 2003
Posts: 75,043
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,043
U.S.S.A.
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Quote:
Yes it HD and I'll have it shortened to spec if necessary it may only be 3/8 long...
Thanks all
.63 is 5/8 and considering the amount of work you are doing to the car I wouldn't size a driveshaft till it's DONE
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