th350 and th400 same length driveshaft?
th400's come with 32 spline output shafts most common with 4" tail housings.
th400's also come with 27 spline output shafts and long tail housings.
th350's come only in 27 spline output shafts, but they also have a long and short tail housing.
A lot of variations to just guess at right?
Measure everything and go from there, no one on this website can give you a yes or no answer.
a vague answer... prolly not.
the th400 uses a different yoke alltogether.
if you ran a short tail 350, chances are you can get the driveshaft shortened.(cheaper of the two)
worst case, if you have a th350 long tail and a 400 short tail, youll need a new tube.
If the driveshaft is for a short th400 and a short th350 the yoke needs to be changed. All short th400's have 32 spline outputs.
Long th400's have both 27 and 32 spline outputs.
I don't understand the guessing game going on here, measure the damn thing, thats the answer.
i wanna get all the parts so I can just throw it together, but it looks like i'll just have one made I guess for 9" to th400....



