LR Torsion Arm, Junior Sprint projecta purchase just the post and

purchase just the post and re-use the insert

Includes studs

04-612 - Spring for Jacob's Ladder (1)

It is used on winged racing in some situations to keep the car from bottoming out on the left rear on entry which will kill traction

Measures 10-1/2" in overall length and 3/4" in diameter

LR Torsion Arm, Junior Sprint projecta purchase just the post andHyper Racing # 40 510 3 4" spline x 10 1 2" active length (center of torsion bar hole to center of shackle hole). Our torsion arms are machined from 2024 aluminum for superior strength. Rear torsion arms are measured from the center of the splined torsion bar hole to the center of the shackle mount hole. Squeeze bolt is included. Send us your old torsion arms or a sketch and we will offset torsion arms to your specifications at no charge.