Product review (5 stars): Exact part for my True - Model #GDM-61
This was the exact replacement needed for my True Model #GDM-61 cooler.  I'm not exactly sure whether the original thermostat was ever working properly.  I've had the cooler for nearly 5 years and have ALWAYS had temperature problems, however, I've always gotten it to work again after simply unplugging it for a bit.  Not this last time.  The temperature would freeze everything inside overnight and I just can't have that.  I replaced it myself.  Took about 10-15 minutes.  Simple.  No directions needed.  So far it seems to be working fine.  I'll update if need be in the future.  Until then,...