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Re: What driveshaft for 69 Road Runner
[Re: Dodgeballs]
#515020
11/03/09 08:35 AM
11/03/09 08:35 AM
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Joined: Jan 2004
Posts: 1,230 Pittsburgh, PA
wayfarer1
pro stock
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pro stock
Joined: Jan 2004
Posts: 1,230
Pittsburgh, PA
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The problem you have is that the tailshaft on a 904 is shorter than a 727 which makes the 904 driveshaft longer.
In order to make a driveshaft from a 904 trans work with your 727 setup you will have to shorten the shaft, get the correct slipyoke for the 727 and get the correct u-joint for the yoke you have on your rearend. There is a small and large yoke for the 8.75 rears and each will take a different size u-joint on the driveshaft.
Joe
Current Project: 72 Roadrunner 340/727/Petty Blue/White Roof Strobe Stripe/Black Bucket Interior
71 Demon project
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Re: What driveshaft for 69 Road Runner
[Re: wayfarer1]
#515021
11/03/09 08:55 AM
11/03/09 08:55 AM
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Joined: Nov 2005
Posts: 836 lancaster, new york
macmic87
super stock
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super stock
Joined: Nov 2005
Posts: 836
lancaster, new york
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someone please correct me if i am wrong, also i think a drive shaft for a road runner is a different length than a superbee of the same year and drive train. driveshaft length for a 1969 road runner with an automatic and 8 3/4 rear is 51.5"
Last edited by macmic87; 11/03/09 08:58 AM.
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Re: What driveshaft for 69 Road Runner
[Re: macmic87]
#515022
11/03/09 10:33 AM
11/03/09 10:33 AM
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Joined: Jan 2004
Posts: 1,230 Pittsburgh, PA
wayfarer1
pro stock
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pro stock
Joined: Jan 2004
Posts: 1,230
Pittsburgh, PA
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I am not 100% sure if I am right either but I would think that the driveshaft for a 69 superbee would be the same for a RR as they are basically the same car. Unless the superbee is a little longer or shorter than the RR.
Joe
Current Project: 72 Roadrunner 340/727/Petty Blue/White Roof Strobe Stripe/Black Bucket Interior
71 Demon project
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Re: What driveshaft for 69 Road Runner
[Re: macmic87]
#515023
11/03/09 06:48 PM
11/03/09 06:48 PM
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Joined: Jun 2004
Posts: 469 Hawaii
Dodgeballs
OP
mopar
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OP
mopar
Joined: Jun 2004
Posts: 469
Hawaii
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ok. found a place that has the 7260 slip yoke. Does anyone know the length of the '69 Road Runner 440/727 8 3/4 driveshaft? Is the length calculated from the center of the slip yoke to the center of the pinion yoke? I'm gonna get my 68 4 door driveshaft cut down, but I'm not sure on the measurements at all. I don't know what measurements to give the shop
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Re: What driveshaft for 69 Road Runner
[Re: Dodgeballs]
#515025
11/03/09 07:36 PM
11/03/09 07:36 PM
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Joined: Nov 2005
Posts: 836 lancaster, new york
macmic87
super stock
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super stock
Joined: Nov 2005
Posts: 836
lancaster, new york
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as stated before, a 1969 drive shaft that fits a big block auto or manual trans and a 8 3/4 rear is 51.50" measured from the center of the ujoint caps. the type is 7290. the type 7260 is for small blocks. also the length is different for a dodge which would be 52.07. so there is a difference from plymouth to dodge in 1969.
Last edited by macmic87; 11/03/09 07:40 PM.
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