540s10
New Member
What is the difference between the 40 dollar switch I have seen people using on their allisons (4l80e switch) and the actual allison switch that costs 3 times that? Why do they have 2 different switches?
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NSBU switch compatibility...
- Thread starter 540s10
- Start date
- Staff
- #2
The origanal NSBU switch was the one from the 4L60E/4L80E, but they proved to be rather troublesome as they are not as weatherproofed as well. The 4L60E/4L80E use the switch pretty much just for the gear indicator whereas the ALLISON uses it for the gear indicator and to tell the TCM which gear to use as the highest. When you move the shifter in the ALLISON from OD to 1 the only thing that changes is the output from the NSBU. ALLISON came out with a revised switch that is less prone to failure from the elements as they use the switch for more things on the ALLISON. You can get the switch from ALLISON directly for about $85 VS the dealers outragous $245 they quoted me.
saratoga
Unpaid Help
Let's put this in Allison OEM since the subject matter fits.
Ridge_Runner_Diesel
The Still Master
NAPA cost is $36
- Staff
- #5
NAPA cost is $36
NAPA sells the regular black 4L60E/4L80E style, but GM will rape you dry for the new tan NSBU switch.