fiberglass sub box

i built a box had it all done and fell off work bench has 3" long crack in it glass is about 1/4" thick. how do i go about repairing it? any help? thanks

I would start out grinding away at the cracks. Kinda gouge (SP) them . Then reinforce the front and rear of the spots where it cracked

Like jason said grind away at the crack then use some mar-glass or tiger hair.
What did you use to polish the intake and pulley brackets?

check out www.fiberglassforums.com its a great fiberglass community.

thanks for the advice and links.
the intake and pully brackets i used a dremal and d/a sander and alot of hand sanding and a buffing wheel in a die grinder
took about 90 hours but came out sweet.
i have the steering pump brackit and a/c compressor not using them any more if interested let me know
e-mail yellowrangeron20s@yahoo.com

stop! drill a hole on each side of the crack where it ends then grind a small dish all the way down the crack fill it with glass mat and resion then finsh it off with bondo or duraglass.this will keep it from cracking when the mad bass hits.

stop! drill a hole on each side of the crack where it ends then grind a small dish all the way down the crack fill it with glass mat and resion then finsh it off with bondo or duraglass.this will keep it from cracking when the mad bass hits

thanks that is what i did hopfly it will hold again thanks.