Gearhead1

....seems lot of folks are having trouble getting those bolts loose like i was...
I may need to make a tool...better version of what i did using the okd chain to lock it from rotating....

....one of them “round to it’s”

Oldblue

I just use the 5/16 drift to place in the hole and engage the teeth of the sprocket, I suppose a chain vide grip might work also

Gearhead1

I was going to do that too but car body was in the way

Oldblue

I just lowered the engine a bit on the jack. You have to to get that water pump bolt out, so that’s when I have the room to get in there.

Gearhead1

I lowered mine too....until it was against the sub frame....punch was to long...about 4-5”....so i used the old chain and vise grips to hold it. OCD...so the new gears had to go on...lol

donbrew

GM says don't remove the sprockets, remove the shafts. Shouldn't need replacing.