SOLD Camino, Ca. Advance Adapters SM420 adapter PRICE DROP

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pardion

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Joined
Nov 5, 2005
Threads
396
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Location
Camino, California
Vehicle Model
  1. 40 Series
  2. 45 Series
  3. 55 Series
This mates a 1965-73 one piece Transfer Case to a GM SM420 4 speed transmission with a granny low first gear. Has the one piece coupler shaft, used hardware, bearing and adapter.
$150.00 plus shipping
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Last edited:
Do you have the T- case that was attached to that adapter?
10 or 16 splines?
Is it ready to install or there any parts missing?
Any instructions?

Sorry for so many questions but I haven't had a good experience buying used parts lately.
 
Do you have the T- case that was attached to that adapter?
10 or 16 splines?
Is it ready to install or there any parts missing?
Any instructions?

Sorry for so many questions but I haven't had a good experience buying used parts lately.
Can’t remember if I have the T/C that this was on, 3 speeds are all 10 spline,,. All parts are there except FIPG silicone.
Simple install, bolt on the adapter to the transmission, slide the output shaft onto the trans output shaft, slide on the rear sealed bearing than bolt on your 3speed transfer case with the supplied bolts.
You will have to modify your shift linkage.
This adapter is 6” long.
 

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