Originally Posted by
bcane98
I have an RTR and it's time to make some upgrades... I am starting with the Spider center Diff... Will it fit without any mod or additional purchases?
Thanks
bcane
Should fit right in but but you need to get the pro kit spur gear for the spider diff. Most people that race the pro kit put the regular diff in. If your just bashing or if your going to race i would keep the regular diff in.