The plastic was broken on my truck as well. I removed the remaining plastic then I drilled a hole in the metal dash behind it. I used a piece of 3/8” chrome plated fuel line with a flare on the end. I used a longish sheet metal screw to pass through the tube to mount it to the dash in place of the removed plastic. I then routed the cable from the indicator over the tube then to the steering column as it was originally. The flared end on the tube keeps the cable from sliding off. So far it works as well as the original.