correct trans #s???

[termn8rgn]

hello.had my trans rebuilt.traded in mine.tag and # are different.need to see if i got proper replacement.here they are. 8639224 found on the side. yellow tag with BR E.(my stock one was pink).on the case is a 407 over anX and a G.(407 and g are larger)this is on the bellhousing. .any help will be appreciated. thanks 87 gn 130k.

 

[MeanBuicks]

The yellow 'BR' tag is indicative of the proper '87 TR transmission, at least the case anyway. The '407', 'X' & 'G' are casting identifiers and don't mean much in the way of calibration.