their a tremec tko 500 I belive and they're pretty strong.
their a tremec tko 500 I belive and they're pretty strong.
2005 rcsb silverado 4.8L, Full bolt ons, obx lt's, ory, comp xr265hr hi lift, Nitrous outlet plate kit, built 4l65e, J-H shift kit, 2500 stall,3.73 G80 , 3 inch spintech cat back, tuned by Rick at Synergy motorsports
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