I need the drive sprocket sleeves changed on my cat 277. 1st thing I noticed was the bolts can't slide out, they have to go back towards the machine. So the idea of just sliding out the bolts one-by-one and changing the sleeves is out of the question. I have been looking online for some step-by-step instructions on the easiest way to change the inner and outer sleeves with no luck. Any help would be Greatly appreciated!
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