These are about 6 years old. The double end has GM 1 ton TRE taper at one end, and is sleeved with 3/4" ID tube at the other. The single end is also sleeved with 3/4" ID tube.
$50 for the single, has some BFH marks from removal :emb:
$70 for the double. If you want I can drill out the taper in the one end and sleeve it to match the other.
$100 if you buy both.
Add $5 for shipping