I have for sale these NIP GPM Racing Traxxas TRX-4 Aluminum Shock height adjustable inserts.
These go where the top cap goes into the shock tower, then you attach the shock to these so you can raise the truck up and down without having to replace all the links and longer shocks.
These are for all 4 corners but you can raise the front or rear only if desired only to get that squatted rear look.
Email me with questions.