Here’s some pics of a Caterpillar part number 151-5747 Blade Stabilizer. It looks like an A-Frame & it is off of an 834H RTD, or rubber tire dozer. The two bores were badly worn & out-of-round. The inner & outer bores where the shaft rides were both extremely worn & out-of-round as well which allowed the shaft to contact & slide against the main housing causing it to crack internally between the two bores. After prepping & welding the cracks we machined all four bores until they were perfectly round. We then welded the bores with our automatic bore welder before final machining of the bores back to size. After we had the Blade Stabilizer assembly all back in shape we installed the new shaft & hardware.Motor Mission Machine & Radiator