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official first yearof aluminum bellhousings for 465 tranny

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by R72K5, Aug 30, 2003.

  1. R72K5

    R72K5 Banned

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    in 2wd pickups what was the official first yearof aluminum bellhousings forthe 465orthe 326 trannies ? dont say 72 or any year earlier, because they were sitll iron those years noaluminum anything yet,

    whenever they went to aluminum they also wentto rear tail crossmember insteadof just rear engine crossmember udner the iron bellhousing


    thanks
     
  2. u2slow

    u2slow 1/2 ton status

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    73 is the first year for aluminum as far as I know. Also coincided the the ball-stud being mounted on the bellhousing rather than the engine block.

    Tail-mounted crossmember should have started the same year.

    Parts searches on www.car-part.com are good for establishing how long a year-span a part was used for.
     

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