NP261 and NP263 Inner Blocking Synchro Race Ring
Between Middle Synchro Friction (21635) and Drive Hub Snap Ring (401860)
For 2001 - 2007 Duramax 261HD, 261XHD, 263HD and 263XHD transfer cases.
NP261 and NP263 Inner Blocking Synchro Race Ring
Between Middle Synchro Friction (21635) and Drive Hub Snap Ring (401860)
For 2001 - 2007 Duramax 261HD, 261XHD, 263HD and 263XHD transfer cases.