My 49 jumped around a lot, it had two main issues that halted the jumpiness- new leaf springs, and new steering gear box-
Try adjusting your steering gearbox first- probably just loose- the owners manual goes through how to do it- It is not hard. also adjust your front wheel bearings-
My leaf springs in front had some broken springs so the truck was all over the place if you ran over a fly.
Looks good- I really like the shell
