Product Name : VITAVON CNC Alu7075 Front Bulkhead / Differential Housing For Traxxas UDR 1:7  #8530 8580
Brand : VITAVON
Color : Silver if you need other corlos, please order from below link:

https://www.ebay.com/itm/285480162640

https://www.vitavon-racing.com/product/vitavon-aluminum-cnc-front-bulkhead-for-udr-traxxas-unlimited-desert-racer-17/

 
 
Made of high quality Alu7075 by CNC 3D process.
Pls see below video for good description:
https://youtu.be/8GKrr4Pz-hg

Accessories included :  Screws for assembling