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1991 V3500 CrewCab tranny?

Discussion in 'The Garage' started by johnnychimpo, Jan 2, 2007.

  1. johnnychimpo

    johnnychimpo 1/2 ton status

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    Which automatic would this truck have TH400 or 4l80? TBI 350, SRW.
     
  2. dhcomp

    dhcomp 3/4 ton status Premium Member

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    Should be a 4l80e with a standalone computer if i remember correctly.
     
  3. johnnychimpo

    johnnychimpo 1/2 ton status

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    That's what I was hopeing someone would say.........Thanks!
     
  4. broc944

    broc944 1/2 ton status

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    I would also say it has a 4l80e. Nobody wants them things;) .
     
  5. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    Should be easy enough to find out, if there is wires going to the tranny then it would be a 4L80E, if not then a TH400. Even easier would be to look at the dash and see if it show's an overdrive on the gear selector.
     
  6. dyeager535

    dyeager535 1 ton status Premium Member

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    I sincerely doubt it's a standalone controller, since the 1991 454/4L80E trucks are not.
     
  7. johnnychimpo

    johnnychimpo 1/2 ton status

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    I haven't bought the truck yet, but if I do the first thing I'll do is yank the POS 4l80 and use it for a goose decoy anchor.
     
  8. johnnychimpo

    johnnychimpo 1/2 ton status

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    If not standalone then how would this thing be wired? like the 88 & up trucks?
     
  9. beater_k20

    beater_k20 Banned

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    could be either, as they were both offered in 91.
     
  10. broc944

    broc944 1/2 ton status

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    I was kidding about no one wanting those, they are sort of desirable.
     
  11. johnnychimpo

    johnnychimpo 1/2 ton status

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    Your right, it might be a little heavy for goose decoys.
     
  12. beater_k20

    beater_k20 Banned

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    integrated into the TBI harness. the diesel trucks got the standalone.
     
  13. dhcomp

    dhcomp 3/4 ton status Premium Member

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    Really? I thought they were
     
  14. johnnychimpo

    johnnychimpo 1/2 ton status

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    What about the '91 2500 Suburban? Were they standalone?
     
  15. az-k5

    az-k5 1/2 ton status

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    4L80E is a TH400 with OD. They are a very good trans. The stand alone makes them even more desireable for our uses.
     
  16. k204dr

    k204dr 1/2 ton status

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    The only standalone ones were the diesel. all the gas ones were intigrated into the tbi computer.
     
  17. broc944

    broc944 1/2 ton status

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    Mine is intergrated, they can be made into non-electric manual shift.
     
  18. beater_k20

    beater_k20 Banned

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    when converting to non-electric they become full manual. :deal:
     
  19. broc944

    broc944 1/2 ton status

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    I can shift mine manually and it is still electric shift.
     
  20. nvrenuf

    nvrenuf NONE shall pass! Premium Member

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    Mine has a 4l80e and is wired into the tbi just as dyeager535 said. :wink1:
     

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