While I never worked on this year and model, most mufflers are usually fairly simple to replace on vehicles from that time frame. Typically there is one or two U-shaped bolts with nuts on the end, just remove those nuts and the bolt and then work the muffler off, you can use a rubber mallet or hammer to knock it loose if need be. Put the new muffler in place and put the bolts back in place. I am not sure if it will be the same on the T100 or not. Hope this might help.