APPLICATION: WORKS WITH SAVAGE 21 RTR, 25 RTR, & 25 SS

Now available from HPI Racing are Heavy Duty Differential Shafts. These parts are more durable than the stock part, which lengthens the time between re-builds during extreme condition driving.

These HPI86278 14x34mm heavy duty differential shafts replace the stock HPI86064 differential shafts. These heavy duty differential shafts go on the outputs of each differential. 1 pack of these contains 2 differential shafts which is enough to upgrade 1 differential on a Savage.

PLEASE NOTE: TO UPGRADE BOTH DIFFERENTIALS ON A SAVAGE, YOU WILL NEED 2 PACKS OF THESE.

RECOMMENDATION: If you want maximum durability, you should replace all the cup joints and the differential input shafts/cups with the HPI heavy duty upgrades. We try to stock these heavy duty upgrade parts... to see these items use the SEARCH at the top of any page to search on the listed part numbers:

HPI86276 - HPI Savage HD Cup Joints 6x13x20
HPI86277 - HPI Savage HD Cup Joints 8x14x19
HPI86278 - HPI Savage HD Differential Shafts

When upgrading to these heavy duty cup joints and already having the truck taken a part, Savage owners may also be interested in upgrading to the HPI Savage Heavy Duty Chrome Dog Bones (these come standard on the Savage SS kit):

HPI86151 - HD Chrome Dog Bone (C-Front)
HPI86152 - HD Chrome Dog Bone (C-Rear)
HPI86134 - HD Chrome Dog Bones (Side Shafts)