Upgrade & Option Parts

Metric brass rear hub for the stock versions of the 2024 Assault HB, 2024 Prodigy, 2024 Assailant, 2024 Mistress, 21+4 Assault, 21+4 Assailant, and 2025 Hustler. Compatible with all 24 dirt oval cars, but it will need the GFR-1230 Axles and 68mm dog...

2 8mm rear hex adapters with two screws. Fits 5mm diameter axles

2 6mm rear hex adapters and two screws. Fits 5mm diameter axles

One pair of Diamond Like Coated 37mm shock shafts. Replacements for QS-5011 Medium Small Bore shock shaft and QS-5013 Big Bore Short Shaft. Includes two shafts and two QS-6800 screws. 

Big bore 3 hole piston compatible with the QS-5049, QS-5050, QS-502, and QS-5053 shock shafts

Big bore 3 hole piston compatible with the QS-5049, QS-5050, QS-502, and QS-5053 shock shafts

Small bore three hole piston compatible with the following shock shafts: QS-5048 QS-5049 QS-5050 QS-5051 QS-5052 QS-5053

Small bore pistons compatible with the following shock shafts:   QS-5048 QS-5049 QS-5050 QS-5051 QS-5052 QS-5053

5 Degree molded steering arm

Small bore bleeder cap. Conversion for the 2 piece small bore cap (QS-5022). Comes in a set of four with screws and 1 x 9.5mm O-rings. 

Brass Insert to add weight to the molded arms GFR-1402 and GFR-1627. Fits on the machined GFR-1625 67mm arms and GFR-1626 70mm arms. 1 per pack

Carbon Fiber Insert to add rigidity to the molded arms GFR-1402 and GFR-1627. Fits on the machined GFR-1625 67mm arms and GFR-1626 70mm arms. Sold in pairs 

1 pair of standard spring buckets for Five Seven Designs big bore shocks.     Compatibility: Five Seven Designs    Formerly 57-1049

1.7" Big Bore Rated Shock Spring Set Includes These Pound Springs: 4, 5, 6, 7, 8, 9, 10 Rate Color QS-1904 white QS-1905 red QS-1906 green QS-1907 purple QS-1908 black QS-1909 silver QS-1910 gold

1.7" Big Bore Rated Shock Springs sold in Pairs Color Chart: QS-1903 blue QS-1904 white QS-1905 red QS-1906 green QS-1907 purple QS-1908 black QS-1909 silver QS-1910 gold  

Small Bore Rated Shock Springs in pairs (1.80 length) Color Chart QS-1803 blue QS-1804 white QS-1805 red QS-1806 green QS-1807 purple QS-1808 black QS-1809 silver QS-1810 gold QS-1812 grey