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Allison 1000 4wd to 2wd ?

sweetk30

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So anyone know parts wise what i will need ?

Its the 1st gen 5 speed unit in a 2500/3500 truck with a 8.1 .
 
What are you doing with it? I do know from experience that the 4wd needs that last vss to function and with the vss mod in the tcase the trans will only shift in 1:1 otherwise the gear reduction will make it think it’s slipping and go into limp mode.
I haven’t however tried using the 263 tcase that comes behind the Allison mainly bc it’s driver side drop.
 
So you’ll need a housing for that vss that’s the same speed as the other sensors in the transmission
 
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