Yes, Wally, the 86 944turbo axles are longer than the T1 axles.
From what I understand, correct me if I'm wrong, using the 86 944turbo aluminium trailing arms,
1. use either the 86 944turbo axles with the cv joints( 100mm) and with the 181 output flange at the transmission,
2. T2 bay window axles with cv joints ( 100mm ) and with the 181 output flange at the transmission.
Think its more difficult to mix and match 2 different cv joint sizes (ie, 90mm T1 and 100mm T2 or 944 or 912,914) on the same axle.
Cheers.