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Need break down of front seat mounts

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by CK5, Jan 15, 2002.

  1. CK5

    CK5 In my underwear Administrator Premium Member GMOTM Winner Author

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    What years were the same as far as front seat brackets go?

    Steve

    Director of Global Expansion
     
  2. Pure Insanity

    Pure Insanity 1/2 ton status

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    I dont know much Steve but a friends K5 has a flip forward style pass. seat. His is an 85. Mine has the slide forward type. Mine is 86.

    So my guess is 86 up slides. 85 down to ?? flips. Thats all I can tell you.

    If ya can't stop.......Smile as you go under! [​IMG]
    PIC of mine from flblazers site<a target="_blank" href=http://www.flblazer.alloffroad.com/photo3.html>
    GO</a>
     
  3. CK5

    CK5 In my underwear Administrator Premium Member GMOTM Winner Author

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    I guess what I'm after is would a front seat frame, let's say a newer slider work on all 73-91 model years? I would think that they would.

    Steve

    Director of Global Expansion
     
  4. EODBRIAN

    EODBRIAN Registered Member

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    what are you looking to do steve??

    i know that the military blazers from the mid 80's did not flip forward or slide back and forth. they were bolted solid to the floor utilizing the same mount the drivers seat has without the slider tracks. no center console was installed, so the back seat passengers climbed through. hope this helps for whatever project your planning.

    EODBRIAN [​IMG]
    eodbrian@hotmail.com
     
  5. AGM73k5

    AGM73k5 1/2 ton status

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    I've been told by a few junkyards that the 73-76 seat mounts are interchangable but I've never checked for other years.

    -Aaron

    ___ __ _ _ ____ __
    AGM73k5 -- ajgm1@yahoo.com
     
  6. CK5

    CK5 In my underwear Administrator Premium Member GMOTM Winner Author

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    I'm looking to see if an aftermarket seat with aftermarket mounts would work on 73-91 K5's.

    Steve

    Director of Global Expansion
     
  7. speed_deed

    speed_deed 1/2 ton status

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    I would think they would. I really don't see why they wouldn't and even if they didnt have the same bolt patterns that is absolutely nothing a drill and a drill bit couldn't take care of. [​IMG]

    '85 k-5 gmc jimmy 4x4 sierra classic. '84 k-5 gmc jimmy sierra. '70 cuda 440 6 pack executive edition shaker hood, steering column shift.
     
  8. JIM88K5

    JIM88K5 1/2 ton status

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    Yo Steve...
    I brought home a set of parts catalogs. I assume your rig is a loaded silverado with all the options. The part number for the seat frame for options (AV5 (AQ9) is 14071461. The early seat mounting is way different. My books go from 73-91 so I have illustrations of all GM light truck seats. What exactly do you want to know?-Jim

    88 Silverado K5 5.7-700R-208-10 bolts-4.56-35in
    Procomp AT's- some ORD stuff & a CV driveshaft
     
  9. speed_deed

    speed_deed 1/2 ton status

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    I think what Steve means is 'Are the bolt patterns the same for '73 to '91 models'.

    '85 k-5 gmc jimmy 4x4 sierra classic. '84 k-5 gmc jimmy sierra. '70 cuda 440 6 pack executive edition shaker hood, steering column shift.
     
  10. JIM88K5

    JIM88K5 1/2 ton status

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    I was a little slow on the post. The lower seat frame is called the riser assy. Driver side assy is 15594688-Pass side is 15591065. Those are the part numbers as of may of 92. May still be the same.-Jim

    88 Silverado K5 5.7-700R-208-10 bolts-4.56-35in
    Procomp AT's- some ORD stuff & a CV driveshaft
     
  11. JIM88K5

    JIM88K5 1/2 ton status

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    The basic break down is 73-78 79-84 85-91 with some variables...-Jim

    88 Silverado K5 5.7-700R-208-10 bolts-4.56-35in
    Procomp AT's- some ORD stuff & a CV driveshaft
     
  12. CK5

    CK5 In my underwear Administrator Premium Member GMOTM Winner Author

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    OK, thanks, but one single new aftermarket base and seat should work for all years I would think.

    Steve

    Director of Global Expansion
     
  13. JIM88K5

    JIM88K5 1/2 ton status

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    Are these seats listed for a blazer or are they universal?
    If they only have one seat for 73-91 blazer, then they will most likley provide additional parts.(spacers or brakets).
    I saw an article in one of the 4x4 mags not to long ago where
    they used Beard seats that are designed for a k5. They bolted
    up to the stock seat risers.The floor pans are not the same
    from 73-91 &amp; GM won't give advise or info on changing seats
    do to liability-I've asked before-Jim

    88 Silverado K5 5.7-700R-208-10 bolts-4.56-35in
    Procomp AT's- some ORD stuff & a CV driveshaft
     
  14. TXBIGFISH

    TXBIGFISH 1/2 ton status

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    Steve, are you just going to change seats? Or the whole thing? If it the seat you can mount it to the existing bracket you have. If you are trying to go with a late model bench, they sit to low. Every seat shop, ect makes an issue of the "hump" in the floor pan, and the clearance that is needed. you might want to see about fabing up some mounts or something, I know that Beard and Master craft seats both make riser assemblies if needed.
    Hope it helps, what exactly are you wanting to do?

    &lt;*)))&gt;&lt;

    81" GMC Jimmy, 4" lift and a shackle flip, and 35's!

    IT'S A DOG EAT DOG WORLD OUT THERE, AND I'M WEARING "MILK BONE" UNDERWEAR!!!!!!!!
     
  15. BurbinOR

    BurbinOR 3/4 ton status

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  16. HarryH3

    HarryH3 1 ton status Author

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    To answer your question, no, one seat base won't fit all years. At least for the passenger side. Early years have no rear bolts to the floor. There's just a latch that holds down the back. In later years, there's a frame that bolts to the floor and the seat slides forward to let rear passengers in.

    I don't know if there are any differences on the drivers side.

    <font color=black>HarryH3 - '75 K5</font color=black>
    <a target="_blank" href=http://www.angelfire.com/super/ThunderTruck>www.angelfire.com/super/ThunderTruck</a>
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  17. txbartman

    txbartman 1/2 ton status

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    Mine is the flip forward with the clamp in the back holding the pax seat down. Wow, mine has never been called an older model before. It's only an 85. You are going to hurt its feelings!

    What I have always wondered was about using an aftermarket 40/20/40 bench designed for a 73-87 4x4 extended cab truck. It should have the same hump issue that the K5 does and it would have a way to access the rear area by sliding a seat. Anyone have any thoughts on that?

    Brian
    Check out <a target="_blank" href=http://tx85gmcguy.alloffroad.com>My Jimmy</a> with all her projects!
     
  18. txbartman

    txbartman 1/2 ton status

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    Did GM even make an extended cab in the 73-87 body style? I would think if they did it would be near the end of the run, but I can't picture on in my head! Did they?

    Brian
    Check out <a target="_blank" href=http://tx85gmcguy.alloffroad.com>My Jimmy</a> with all her projects!
     
  19. HarryH3

    HarryH3 1 ton status Author

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    I think that the latch may have also changed somewhere along the way. On my '75, the lever is behind the passenger seat. Is it on the side of the seat in later years? It's been so long since I sold my '87 that I can't remember where the lever was!

    And no, I don't think GM had extended cabs in '73-87. :-(

    <font color=black>HarryH3 - '75 K5</font color=black>
    <a target="_blank" href=http://www.angelfire.com/super/ThunderTruck>www.angelfire.com/super/ThunderTruck</a>
    It's a great day to be alive...
     
  20. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    My '90 Jimmy seats I just pull it forward and it slides by itself...I'm pretty sure there is no latch. The only lever on the side of the seat is to adjust the back of the seat angle.

    Rene

    <font color=green>Dyslexics of the world...UNTIE!</font color=green>
    <a target="_blank" href=http://coloradok5.com/gallery/project_T2> tRusty pics...</a>
     

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