how much does it cost to replace a 3rd gear synchro in a ls hydro transmission?

 

about $500 if you bring the tranny to me.

Parts come out to $320 shipped, the rest is labor.

23442-PS1-305 GEAR SET, MAINSHAFT THIRD $238.88 $238.88
23927-PG2-A00 WASHER, SPRING (28MM) $3.35 $3.35
91205-PL3-A01 OIL SEAL (35X56X8) (ARAI) $6.84 $6.84
91216-PH8-005 OIL SEAL (28X41X7) (NOK) $4.70 $4.70
91002-PS1-003 BEARING, BALL (28X60X15) $26.98 $26.98
91215-689-013 OIL SEAL (14X25X16) $4.49 $4.49
91205-PC9-711 OIL SEAL (40X62X8) (NOK) $8.04 $8.04
Shipping Information
Shipping Method:
Comments / Special Instructions:

Subtotal: $293.28
*Shipping Charge [Shipping Charge may vary with package size / weight]:
$17.60
Handling Charge: $3.95
**Sales Tax: $0.00
Total Order : $314.83