icanfixall
Official GMM hand model
The spacer is the 1 1/8 inch thick piece that connects between the flexplate and the crank. The washer is the piece that has the bolts going thru it and it spreads the bolt torque holding out over a wider area of the plate. With that flexplate you must use the spacer or it wont tighten up on the cranks. It also will be engaged into the starter gear sop it can't work. Now because you have a heavy cast iron flexplate you wont need the spacer. But you will need the washer, thin stamped torque converter plate and the heavy cast iron plate with the pressed on ring gear. Look that gear over closely for worn teeth. You can replace the gear easily too. They are found many different places like ebay or nappa. The reason for replacing the bolts is because of the horrible damage that was done there. They are suspect for holding power now. Not replacing them is taking a huge risk. If you just had to get home and these were the only bolts on the planet I say use them but have it in mind they are not dependable.