I ordered 2 of the 5:1 transmissions; they come with their motor installed. We can attach the Fisher-Price motors with the 3.2mm 5:1 pinions. Unfortunately they are out of stock until later this week. I will need to order the pinions when they become available as their website won't let you order a part that's not in stock. I talked to Rick at Banebots (970-443-1488). He said there is an issue with putting the pinion on the f-p shaft, which has splines; sometimes the pinion cracks, so we will need to be careful! He said people have heated the pinion, cooled the shaft (put the motor in the freezer) with some success. Another method is to run the motor and file down the splines. See you later this week, Wayne Morgan __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com