odd the link I posted doesn't work, must be some inter-forum fighting....
Here is what the guy said.
"My new 1/4 and 3/8 primium ratchets came in Tuesday. I took them to work and used them for a few days. I like them. The 3/8 handle fits my hand like a natural extension. I'm quite happy with it. Because I'm trully a sick puppy, i was wondering how the Craftsman 84 tooth ratchet compared to the Matco 88 tooth ratchet internally. Yes I played doctor Frankenstein, took the ratchets apart, interchanged pieces and put them back together to see if they worked. They do but, I wouldn't recommend it. If the pictures load, you'll notice that the ratchets share the same design and components for the most part from the 17 tooth pawl, to the spring loaded bullet shaped plunger, to the orangish colored o rings sealing it. There are some differences. The pawls are marked 84 3/8 or 88 3/8. The backs of the gear and inside the ratchet body are also different. If you can make it out in the picture, the inside of the Matco 88 ratchet body and the back side of the gear is smooth and flat. whereas, the inside of the Craftsman ratchet body has a raised circle that meshes into a cut out circle on the back of the craftsman 84 tooth gear. Because of this slight difference in gears and body, I wouldn't recommend upgrading your 84 tooth ratchet to an 88 tooth ratchet (even though some of you sicker people are thinking about it). lastly, the cover plates are different. Matco uses the Danaher standard thin steel plate with a snap ring, while the new Craftsman has upgraded to a thicker cover plate secured by two T6 screws. I think it's a great little ratchet and would like to see a flex head version within a year."