75881 MOD: Lower 1966 Ford GT40




The GT40 is a legendarily low-to-the-ground car, even being named after its total height. The official LEGO version is still quite tall, so this modification brings it a full 2 plates lower to the ground (11 plates tall instead of 13), making it noticeably shorter than a minifig in total height.

The mod also eliminates all 6 visible studs that were present on the original to further smooth the overall appearance, and accentuates the flared front wheel wells. All details and decals from the original remain intact. Despite its radically altered form, the car still fits a minifig and a steering wheel, though space is even more tight than before!

These instructions are free because this car is a modification of an original LEGO design rather than a complete from-scratch custom build. This mod is a complete overhaul that requires additional pieces that did not come with the original set! Please check the inventory page before you begin! Check my Flickr for more classic cars and other LEGO builds, and check out my MOCs here on Rebrickable for more custom instructions.
Login to hide ads!


Name 75881 MOD: Lower 1966 Ford GT40
Designer Carbohydrates
Designed 2018
Inventory 141 parts
Theme Speed Champions
Modification of 75881-1-s1 1966 Ford GT40


  • 3 weeks, 4 days ago Haldanite Level 11 MOC Designer
    I just finished building this today and it looks great!  I still need to get some extra stickers to put on this one, but to be honest it looks pretty good without them so I'm not in a hurry.
  • 6 months, 2 weeks ago Corban2011 Level 16
    Woe!!! This is awesome!! :D I tried a while back to MOD this myself to make it more accurate to the real car, but this is amazing! :D WAY cooler than what I came up with. ;p I can’t WAIT to build this!!! :D :D Thought, those rare wheel pieces will make this a little harder.... Xp Now I gotta go shopping... again... Xp

    Oh, and also, Thank you so much for allowing us to get the instructions for free! :D That’s a huge help for a cheapskate like me. :p :) What program do you use to make your instructions? It’s so professional. :D
    • 1 month, 3 weeks ago Carbohydrates Level 11 Designed this MOC DESIGNER
      Sorry for the unbelievably belated response. Glad you like it so much! Those wheels are rare in that color, sure. At the time I ordered the parts for this, they were actually available through LEGO's Bricks and Pieces program, so I got them on the cheap. As of 2020, they exist in pearl gold now too, so you don't have to spring for the metallic gold ones.

      As for the instructions, I don't charge for instructions that are modifications of other peoples' designs, even LEGO themselves. I use stud.io's instruction maker, but I do it all by hand rather than using its automatic functions. I find you get a cleaner, more professional look that way. And I've gotten better at it, too! Makes me want to go back and re-do my older ones, except that it takes hours and... I don't actually want to do that at all.
  • 8 months, 3 weeks ago @mcbrickster Level 8 MOC Designer
    I can only echo what Prototyp has said: fantastic!
  • 10 months, 1 week ago nzmike Level 12
    For anyone building this be aware that it uses around 35 pieces (about 16 parts) that are not in the original set - I didn't realise this until I took the original set apart and started rebuilding it.  It would have been very helpful if that had been mentioned in the description above..
    • 10 months, 1 week ago Carbohydrates Level 11 Designed this MOC DESIGNER
      Ah jeez, you know I didn't even think to mention that? I figured the inventory of parts page would be enough. But now it seems so silly that I didn't! Yeah, my sincerest apologies for that; will update the description ASAP.
      • 8 months, 3 weeks ago nzmike Level 12
        I just finished building this (took a while to get around to order the extra parts I needed) and have noticed that there is no clearance above the wheels so they are rammed up against the wheel arches and do not turn freely at all.  I've double checked what I built against the instructions and it seems I've done it correctly but wanted to check with you as I can't really see the point of having a Speed Champions car with no playability (my son and I build them together and he actively plays with them). Can you confirm whether this is correct and the wheels don't actually turn freely?  Or maybe the instructions are not quite correct?  I may have to do a little redesign myself but I suspect it will end up being another 1/3 higher to get the wheels to rotate freely.
        BTW, really love your SC MOCs - I've just been through your other designs and your Flickr page and there are so many I want to build I may need to ask you about doing a deal on bulk purchase of instructions at some stage.
        • 8 months, 3 weeks ago Carbohydrates Level 11 Designed this MOC DESIGNER
          Thank you for taking the time to write about your experience building my instructions! I'm very sorry you're having trouble. Are you using the correct wheels and tires? The build calls for wheel 11208 with tire 11209, which are not the same as the ones that originally came with the set - those being wheel 18976 and tire 18977. These smaller wheels I used should easily clear the fenders and do indeed turn freely, as they are about 3.2mm smaller in diameter.

          Also, thank you very much for your kind words! I can definitely help with a bulk purchase deal. Given that your son likes to play with these, I would also be happy make some specific recommendations for and against some of my models. They vary in terms of stability and playability, and a couple of them do actually have wheels that don't turn freely.

          Let me know if you have any other questions!
          • 8 months, 3 weeks ago nzmike Level 12
            Ah, that's it! When I was doing the parts inventory I I didn't notice the wheels and tyres were different part numbers, probably because the wheel colours look the same at first glance. In the meantime we did rebuild it using the the normal SC wheels and tyres and it only ended up 1/3 stud higher. We had a real job getting the nose assembly to fit snugly so had to change how it's mounted but it's good now and looks (almost) as good as yours.  In my next BrickLink order I'll get 4 of the correct tyres and wheels and we'll have another go :-)

            The next one of yours we plan to build is the 1974 Plymouth Barracuda which looks absolutely brilliant in white (and brings back memories of old 70's cop movies). Then it definitely has to be the Datsun 240Z as I had a pre-owned one when I was in my early twenties (way too long ago now) which I loved - so that one is all for me :-).

            I'll get back to you re a bulk deal once we've had a think about which other ones we also want to build but it might not be immediately as we have quite a backlog of MOCs and sets to build at present.
  • 1 year ago zeeverse Level 14 MOC Designer
    Great Rendition of a very iconic car. The GT 40 is one of my favorite old classics.
  • 1 year ago prototyp Level 15 MOC Designer
    Looks fantastic. Nice work slimming the car down and still fitting Mr Fig. Thanks for sharing the instructions :)
to your account to add or reply to comments.
Already have some of the parts? Use the Build this MOC page to only show the parts you are missing.
Create an account to change the default filters used.

Waiting for Inventory to load