my post was deleted so here it is again 4spd drive shaft

[dustya_383]

I have an abody 4speed, with an 83/4 rear. .now it previously had a 727 in it with dame rear. . .soo what drive shaft can be used??? I have the large out put in the 4 speed so can I put that to a 904 shaft. And have the correct length?? Can get one from a 68 cuda that had 904 and 83/4 but want to be sure it will work before I purchase thanks

 

[1wild&crazyguy]

Pull a drive line out of a b/c body and have it shortened.

727 & 904 yokes are different.

The reason I say get one out of a bigger car is cause it will have the lager sturdier 7290 u joint.

7 1/4 uses a longer drive line than a 8 3/4 given the same trans/wheel base

 

[skep419]

you have a a833 4 speed 8 3/4 and you want to buy a 904 shaft and have it cut down to work?

 

[dustya_383]

Pull a drive line out of a b/c body and have it shortened.

727 & 904 yokes are different.

The reason I say get one out of a bigger car is cause it will have the lager sturdier 7290 u joint.

7 1/4 uses a longer drive line than a 8 3/4 given the same trans/wheel base

Well I was going to use the yoke from my 727 shaft and put it on the 904 shaft.. also i replaced the u joint with a bigger one already IIRC. This was last year so not too sure. . .but if that's the case.can't I just get my original shaft shortened that I was? using with the 727 and 8 3/4?? Also how much would need to be cut?

 

[skep419]

You had a 727 in the car and you swapped it out for a 4 speed? The output shaft of your a833 4 speed takes the same slip yoke as your 727? You bought a 904 shaft because it is longer and you would like to cut it to length? What is the measurement from your tailshaft housing to the top of the rear yoke.

 

[skep419]

You had a 727 in the car and you swapped it out for a 4 speed? The output shaft of your a833 4 speed takes the same slip yoke as your 727? You bought a 904 shaft because it is longer and you would like to cut it to length? What is the measurement from your tailshaft housing to the top of the rear yoke.

#6

 

[1wild&crazyguy]

if it's an abody 4spd the shaft is already too short, i would guess.

and there were only aftermarket large u joint 904 yokes as far as I know..but I don't everything.

otherwise you would use the combo u joint.

If you want the small joint, use the yoke you have.

I assume the yoke you have off that 727 is a 7260, but you haven't been very clear..

 

[1wild&crazyguy]

dubla post

 

[66fs]

I have an abody 4speed, with an 83/4 rear. .now it previously had a 727 in it with dame rear. . .soo what drive shaft can be used??? I have the large out put in the 4 speed so can I put that to a 904 shaft. And have the correct length?? Can get one from a 68 cuda that had 904 and 83/4 but want to be sure it will work before I purchase thanks

The 904 with the 8 3/4 driveshaft should be the right length if you have a A/F body 4 speed. You already know you need the large slip yoke. What U-joint is in the rear? The trick is the U-Joint. Large or small? Measure that and go from there.