1.5 Track on 1988 Srv

[ssjrmk]

I have a 1988 srv for my son and I was wanting to put a 1.5. X 121 track on it. Will I have room in the tunnel? Will I have to go to smaller drivers? Should I gear down? Any info would be great.

 

[Got boost want snow]

If you have to go to smaller drivers you shouldn't have to gear down. The drivers will change the ratio for you.