Hey if you just need the diaphragms and save some money like i did pick up the Duratrax: DTXC9182 you get 4 diaphragms for $1.79 "thumbsup"
See link;
https://www.rcplanet.com/DuraTrax_Shock_Diaphragm_Vendetta_ST_4_p/dtxc9182.htm
~D
Ordered. Thanks!! "thumbsup"