Thermoquad id

I have what I think is a complete list of TQ list numbers and there's no 2141. The list # shown for a 71 man trans. is 4972 which is in fact the lowest list # used on a production car. For an auto trans. the list # is 4973.

Like Bruce asked where are you getting that #? The list number is stamped on the left rear mounting pad. Here's a pic of one I had showing the list #