I would bet not, you can't put the dual 80 kits into an older model. I think the exception is this listed below, and only because it is using the older 36 tooth kit.
Stock # FC72
Name Ratchet, Compact Sealed Head (High Strength), Short Handle, 4 7/16"
Price** $68.95
Brand Snap-on
Country Of Origin USA
Finish Chrome
ASME/ANSI B107.10M-1996
Gear Action 10°
Gear Teeth 36
Head Type Sealed Compact
Ratchet Service Kit RKRFC936
Description Short Handle
Square Drive, inches 3/8
U.S. Patent 4,934,220 and 6,125,722
Dimension A, Head Depth, inches 7/16
Dimension B, Head Width, inches 7/8
Dimension C, Length, inches 4 7/16