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904 to 8 3/4 drive shaft question.... #328270 05/25/09 01:31 PM 05/25/09 01:31 PM
Joined: Jun 2006 Posts: 1,058 Escondido, California JonGottaDemonDad OP super stock
JonGottaDemonDad OP super stock Joined: Jun 2006 Posts: 1,058 Escondido, California	What is the length of a drive shaft on a 1971 Plymouth Duster from a 904 transmission to a 8 3/4" rear end? I am trying to using the drive shaft I have right now and it appears about 1" to long. Not sure if I can move something to make it fit. Any advice? Craig

Re: 904 to 8 3/4 drive shaft question.... [Re: JonGottaDemonDad] #328271 05/25/09 01:55 PM 05/25/09 01:55 PM
Joined: Jan 2003 Posts: 12,405 Southern, Ca. 69DartGT moparts member
69DartGT moparts member Joined: Jan 2003 Posts: 12,405 Southern, Ca.	Jon, not what you want to hear, but I had to have mine shortened, found place in National City that was a truck driveshaft serve center.

Re: 904 to 8 3/4 drive shaft question.... [Re: 69DartGT] #328272 05/25/09 01:58 PM 05/25/09 01:58 PM
Joined: Jun 2006 Posts: 1,058 Escondido, California JonGottaDemonDad OP super stock
JonGottaDemonDad OP super stock Joined: Jun 2006 Posts: 1,058 Escondido, California	Anyone know the actual length? Craig

Re: 904 to 8 3/4 drive shaft question.... [Re: JonGottaDemonDad] #328273 05/25/09 02:26 PM 05/25/09 02:26 PM
Joined: Jan 2003 Posts: 8,016 Polson, MT DoctorDiff master
DoctorDiff master Joined: Jan 2003 Posts: 8,016 Polson, MT	Ideal driveshaft length: 1. Bottom out the slip yoke inside the transmsission 2. Measure the distance between the U-joints front to rear 3. Subtract 1" from this measurement Contact info

Re: 904 to 8 3/4 drive shaft question.... [Re: DoctorDiff] #328274 05/25/09 03:08 PM 05/25/09 03:08 PM
Joined: Dec 2004 Posts: 401 NC H HMcCandless_Jr mopar
HMcCandless_Jr mopar H Joined: Dec 2004 Posts: 401 NC	I have one in the shop, i can let you know tomorrow.

Re: 904 to 8 3/4 drive shaft question.... [Re: JonGottaDemonDad] #328275 05/25/09 03:44 PM 05/25/09 03:44 PM
Joined: Jan 2003 Posts: 2,734 Charlotte, NC 4 446acuda master
446acuda master 4 Joined: Jan 2003 Posts: 2,734 Charlotte, NC	Quote: Anyone know the actual length? Craig 49.27"

Re: 904 to 8 3/4 drive shaft question.... [Re: JonGottaDemonDad] #328276 05/25/09 07:20 PM 05/25/09 07:20 PM
Joined: Jan 2003 Posts: 7,992 Escondido, CA. Ron Podsiadly,... Mopar Ron master
Mopar Ron master Joined: Jan 2003 Posts: 7,992 Escondido, CA. Ron Podsiadly,...	If the driveshaft you have is from a 904 and a 7 1/4 rear then it will have to be shortened to fit the 8 3/4 as the 8 3/4 rearend is larger to the front than the 7 1/4.... Or do you have more driveshafts around from other cars? Last edited by Mopar Ron; 05/25/09 07:21 PM.

Re: 904 to 8 3/4 drive shaft question.... [Re: Mopar Ron] #328277 05/25/09 07:28 PM 05/25/09 07:28 PM
Joined: Jun 2006 Posts: 1,058 Escondido, California JonGottaDemonDad OP super stock
JonGottaDemonDad OP super stock Joined: Jun 2006 Posts: 1,058 Escondido, California	Where does the 49.27" begin and end? Craig

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