Transformation: turn the front of the vehicle over 180 degrees to form the lower legs & feet then stand with the underside pointing towards you. Raise the arms up from the sides.
Robot mode exposes more grey on the upper legs with the body & head being cast in orange plastic the same as Sledge & Hammer's vehicle modes. He's got standard Micromaster articulation of turning shoulders and bending but linked knees & hips. The crane arm on his back can be tucked in behind the legs or rotated and folded over the top of the Micromaster to match his partner.
Decent enough Micromaster by himself.
TF: Fold the connector side of the vehicle - the "front" forward 90 degrees to become the legs. Stand with the underside facing forward. Raise the arms up.
Again we have grey upper legs but this time Excavator has a purple chest - the same colour is used for Grit & Knockout's vehicle modes. The red hook hangs over the top of the toy or can be folded back to stick out of his back. Standard Micromaster articulation here again.
Stonecruncher & Excavator combine in vehicle mode to form that favourite of the designers in 1990 the eight wheeled over long truck. Of the 14 Micromaster Combiner pairs, eight are like this and two more are close variations on the theme. Yes they're construction yellow here - colour hit dead on by the way unlike so many other TFs. We get crane arms at both ends. This sort of vehicle just looks odd !
In Japan Stonecruncher & Excavator were released with Direct-hit & Powerpunch , their team mates from the Micromaster Combiner Battle Squad , as part of the Cybertron (Autobot) C-368 Crane Cannon W Team with Microtrailer #8 .
The rest of the Micromaster Combiner Battle Squad Fireshot & Vanquish and Meltdown & Half-Track. were released as Cybertron toys in C-369 Jet Tank W Team with Microtrailer #9.
The remaining four members of the Micromaster Combiner Constructor Squad, Grit & Knockout and Sledge & Hammer, were released in Japan as Cybertron toys C-367 Dump Shovel W Team with Microtrailer #7.
Yellow becomes Red
Grey becomes Black
Orange becomes Sea Green
Purple becomes Orange
Red becomes Pale Blue
The same swaps are used on the other four members of the Constructor Squad when Grit & Knockout are packed with the Tanker Transport and Sledge & Hammer are packed with the Cannon Transport.
I like this recolour, it's a decent one making them look like emergency vehicle belonging to the Fire Brigade - you can see the Fire Brigade having heavy lifting gear. There might be a little bit of a homage to Grapple being turned into Inferno going on here too.
I'm not quite sure why the Autobots are towing a Missile Transporter though !