Torsion bar seals?

Summit has the poly ones for under $10:

http://www.summitracing.com/parts/ens-5-13101g
http://www.summitracing.com/parts/ens-5-13101r

or under $6:

http://www.summitracing.com/parts/ptp-4-1701-bl
http://www.summitracing.com/parts/ptp-4-1701