Pro-Line Arrma PowerStroke Rear Shocks (3S/4S BLX)

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Pro-Line Arrma PowerStroke Rear Shocks (3S/4S BLX)
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Pro-Line Arrma PowerStroke Front Shocks fit ARRMA 3S and 4S BLX models. These Pro-Line shocks feature 14mm big bore aluminum shock bodies with infinite spring pre-load adjustment, strong machined aluminum shock caps, beefy 3.5mm shock shafts, and true dual-rate springs for a massive performance and durability upgrade over the stock shocks.

For the 3S models, all you need to do is fill the shocks with oil, install, and go! The 4S trucks require slightly longer shocks, so Pro-Line recommends installing the included longer shock ends before use. 

  • High-Performance Shock Upgrade for ARRMA® 3S and 4S Vehicles
  • 14mm Big Bore Aluminum Shock Bodies with Infinite Spring Pre-load Adjustment
  • Strong Machined Aluminum Shock Caps
  • Beefy 3.5mm Shock Shafts
  • True Dual-Rate Springs Included
  • Injection Molded, Super Durable Shock Shaft Guard and Shock Ends
  • Dual O-ring Seals and Upper and Lower Shock Shaft Guides
  • Pre-assembled Just Add Oil!

  • Kraton™ 4S Rear
  • Outcast™ 4S Rear
  • Senton™ 3S Rear
  • Typhon™ 3S Rear
  • Granite™ 3S Rear
Extended Length: 116.0 mm for 3S * / 119.0 mm for 4S *
Collapsed Length: 80.0 mm for 3S * / 83.0 mm for 4S * 


  • (2) Pre-assembled Front PowerStroke Shocks
  • Longer Shock Ends for the 4S Vehicles

This product was added to our catalog on January 5, 2021

Verified Owner
Wednesday, Jun 9 2021 (about a year ago)
Pro-Line Arrma PowerStroke Rear Shocks (3S/4S BLX)
Received these today so giving review by just looks and feel. I'm very happy with the look and feel of these shocks. I'm hoping they sell just the longer shock ends rather then buying the whole shock rebuild kit. I'm prone to breaking the ends bashing. Giving 5 star at this time but will update after I fill them up and do some bashing on my Kraton 4s.

These shocks are awesome and highly recommend them to anyone wanting strong bashing shocks.
Thursday, Jun 16 2022 (3 months ago)
Pro-Line Arrma PowerStroke Rear Shocks (3S/4S BLX)
Great upgrade over the stock cheapo plastic bottom loading shocks that come on the Arrma 3s trucks. For anyone wondering about fitment on the Vorteks, they will fit as long as you remove the helper spring and add an 9mm internal limiter.