My van is factory auto with HI/LOW tc. I understand you didnt get the diesel 4x4 versions of these vans in America so maybe it wasn't a option in the petrol ones? Anycase it should be possible to find a hi low auto tc that bolts in
I've done more research and the input shaft is o different splines. - I'm told you can swap the auto input to the hi/lo and then its a bolt in, other than the linkage.
1988 4WD LE auto dual range t-case (the mistress)
1988 4WD LE auto(the donut van)
Join Date
Aug 2012
Location
Tacoma, Wa
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Re: Single speed to 2 speed transfer case swap
The input is different spline and different length. It requires a near complete teardown of the transfercase but there really isn't anything complex to the job and yes, once it's swapped the t-case bolts right in. This is how I did mine.