Does anybody know the length of driveshaft for a duster with a small block and 727 auto from center cap to center cap.
Thanks Tom

.

I always measure my own setup......just to be sure.

2....I think the Duster application on this one is a misprint, the 340 with 833 should be the same as a 727 application

Is that measurement taken from center to center of u-joint caps. I would asume a dart sport lenght shaft would be the same??
Thanks

See, that's why I don't do the assume part. Shove the yoke all the way into the trans, have the rear end supported by jackstands and measure center to center of the u-joints. Subtract 3/4-1" and you'll know what fits YOUR car.

Don't want to hi-jack this message, but aren't the Darts, Demons, and Dusters different wheel bases?

best way for sure..

shove yoke in tail shaft till it bottoms out...measure from center of cap to center of cap...subtract 1"

perfect fit every time

worst thing on any of them is to be a little short,it wears the tail bushing out and it can cause a vib at speed by the wobble it makes

chased a few vib prob down to it being almost 2" to short and running it... on other peoples rides over the yrs

had the shaft balenced 2x and come to be it was to short

do it right the first time with a balance and correct length

I think some have a 108" w/b and others are
111".
Duster-Demon-Sport 108" ??

Dodge Darts have a longer wheelbase than a Duster.
The 833 for an A body has the a short tailshaft.
Best to measure your own setup to be sure.
Do not buy a Driveshaft until you are sure!

Joe Sr

Just measured duster shaft at 45" center of joint to center of joint. 1971 car 727, 8 3/4 rear.

As said the listed specs will tell you which one from a JY or elsewhere is the one to buy but if shortening one to fit measure 1st. On my 65 dart it was a bit too short and the trans yoke didn't seen to have enough engagement as it felt a bit wobbly on the output shaft splines and in use vibrated on occaision. Picked up another driveshaft just a slight bit longer (less than an inch additional iirc),swapped the (near new) ujoints & that took care of it

The 833/904 in a 340/318/225 being the same is why those size drive shafts are easy to find. The 727 is all by itself. It took me awhile to find one when I went from a 904 to a 727 auto.

i would give www.fastshafts.com in des miones a call and talk to them. they redid mine and built one for a drag truck thats making almost 600ft lbs of torque and no problems.