-TFC Toys 'Iron Army' PCC (Powercore Combiner) limb set
-Transformers PCC 'Huffer' truck
-Downscaled KO G1 Bruticus from sirtoys.com
-Transformers PCC Steelshot (Bombshock redeco)
The result is a high articulated G1 Bruticus. In his present colors, he looks like a WWII 'Robots in Disguise' "Ruination" - who was a redeco of the combiner Bruticus anyhow. :)
I'd like to color-match the Huffer figure, as the yellow/tan color looks good with the brown/green/gray limbs.