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Cab question

Discussion in 'Tech Discussion' started by 777mech, Feb 5, 2019.

  1. 777mech

    777mech Junior Member

    Posts:
    21
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    1
    Joined:
    Feb 4, 2019
    Location:
    Stanwood, WA
    First Name:
    David
    Truck Year:
    1976
    Truck Model:
    1500
    Engine Size:
    383
    What are differences between the auto and manual cabs on 73-80 trucks. I know the manual cab has a removable floor section. Does the auto have this as well but without the hole. Can an auto cab floor be cut out for a manual and look factory? How bout the 4wd vs 2wd manual cabs? Are the different. Thanks!
     
  2. 75gmck25

    75gmck25 Full Access Member

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    597
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    261
    Joined:
    Oct 13, 2016
    Location:
    VA
    First Name:
    Bruce
    Truck Year:
    1975
    Truck Model:
    K25
    Engine Size:
    5.7
    I believe they are 2wd vs 4wd cabs, since the extra height is to allow for the transfer case. When my cab bushings were collapsed there was so little clearance that the cab floor was resting on top of the transfer case. After replacing the bushings (and therefore raising the cab up) the transmitted noise in the cab dropped so much that I first thought there was something wrong with the engine.

    AFAIK, you can just replace the floor section and get the extra height. However, I've never looked at a 2WD cab to verify that it has the same bolt-in section as my 4WD.

    Bruce
     
  3. Rickf

    Rickf Full Access Member

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    31
    Joined:
    Jul 29, 2017
    Location:
    Grafton NH
    First Name:
    Rick
    Truck Year:
    1974, 1954 & a 1937
    Truck Model:
    K20
    Engine Size:
    350
    Years ago I put a C-10, 2wd cab on a K-30 4wd chassis, both were automatics. I only needed to cut a hole for the transfer case shifter, I don't recall any problems. There may be a fitment issue with a top loader transmission, nothing a sawz-all can't cure.
     
    Battlac40 likes this.
  4. eskimomann209

    eskimomann209 Full Access Member

    Posts:
    451
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    282
    Joined:
    Jan 9, 2019
    Location:
    Modesto
    First Name:
    Marcus
    Truck Year:
    1973
    Truck Model:
    C10
    Engine Size:
    5.3
    It’s just the trans tunnel
     
  5. bucket

    bucket Super Moderator Staff Member

    Age:
    37
    Posts:
    19,223
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    4,065
    Joined:
    Aug 3, 2010
    Location:
    Usually not in Ohio
    First Name:
    Andy
    Truck Year:
    '77, '78, '79, '84, '88
    Truck Model:
    K5 thru K30
    Engine Size:
    350-454
    The bolt-in 4x4 hump is different at the rear than a 2wd manual hump. The 4x4 cab has a bigger hump under the middle of the bench seat. The later 2wd cabs may have the bigger hump under the seat like a 4x4, but at that point, bolt-in humps were gone.

    IMG_20190203_165234105.jpg
     
    CSFJ and Westislander like this.

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