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Crossmember hole size?

Discussion in '2nd Gen. Tacomas (2005-2015)' started by truckomadawg, Jun 16, 2023.

  1. Jun 16, 2023 at 11:37 AM
    #1
    truckomadawg

    truckomadawg [OP] Member

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    Previous owner had installed a non OEM skidplate that fastens to the crossmembers near the front of the truck. It was extremely rusty, so I had it sandblasted and linexed. When they removed it the bolts were toast and were discarded.

    M8s are evidently too small, looking at pics, it seems the stock skidplate mounts to brackets that fasten into where my skidplate attached.

    I bought some toyota M12 bolts (90119-12369), which I was able to thread in a few turns before they bind up. I'm unsure if its right pitch, or if it's just really rusty still in which case I'd like to chase the threads with the correct size tap.

    Does anyone know the thread of these holes (see annotated random internet photo)?TacomaBoltHoles.png
     
  2. Jun 20, 2023 at 9:49 PM
    #2
    DailyTacoMD

    DailyTacoMD Well-Known Member

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    Just went through this a few weeks back. The smaller bolt holes are m8x1.25 and the larger holes are m12x1.25 both are considered “fine” thread and i had to buy from a specialty hardware store because I couldn’t find the correct thread & length together at a big box hardware store.

    I used m12 70mm & 65mm lengths for the front and middle bolts, the backs were m8 25mm.

    A few of the holes in my frame had a lot of buildup so I chased the threads with a tap before bolting my skid on.
     
    SR-71A and truckomadawg[OP] like this.
  3. Jun 21, 2023 at 6:28 AM
    #3
    truckomadawg

    truckomadawg [OP] Member

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    Amazing thanks DTMD! I'm going to invest in an M12x1.25 tap and will do the same. I see you have the 2.7, love the 4.0 but that 2.7 must be a lot more gas friendly:). I'm fairly new to 2nd gen Tacomas, and definitely finding the gas consumption to be high despite driving very conservatively with the 6 speed. Has E-rated tires and slightly taller than cab box, so that probably doesn't help either...
     
  4. Jun 21, 2023 at 7:43 AM
    #4
    deanosaurus

    deanosaurus Caveman

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    If you're getting 19mpg, you're doing good. If you're getting 17, you're not necessarily doing bad.

    If you do buy new bolts, look for JIS spec bolts - they will have the correct size flanged heads, and consider stainless if you can find them. EBay is a good source for small quantities.
     
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  5. Jun 21, 2023 at 9:30 AM
    #5
    truckomadawg

    truckomadawg [OP] Member

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    I have 90119-12369 bolts, which from what I understand from the nomenclature is 69 mm thread length, I'm thinking they should work ok, they have a nice washer attached. I think they are actually for wheel bearing assemblies so it should be good strong enough and weather/rust resistant

    Last tank I got 17.5 mpg, in the winter I had anywhere between 14-16 mpg, with E-rated studded tires, so I guess it's about normal
     
  6. Jun 21, 2023 at 11:02 AM
    #6
    muddog321

    muddog321 Well-Known Member

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    TW 1-piece driveshaft with 1310 u-joints All Pro and Budbuilt skid plates OME Dakar rear springs 3" with 5100 5100 front set at 1.75" (3rd groove up) with stock springs Falken Wildpeak A/T3W 265/70R16 2018 TRD Offroad wheels 16x7J with +25mm offset Powerstop rotors with Z36 pads and rebuilt with OEM caliper kit Complete rebuilt rear brakes drums, shoes, springs, wheel cylinders Rebuilt rear and all wheel bearings front /rear Yukon 3.73 ring/pinion rebuild Denso 130A rebuilt alternator AGM 24F Battery New OEM idlers and tensioner assembly New AC compressor New PS hose and flushed Walker SS Quiet Flow muffler Denso Iridium long life plugs #3421 (SK20HR11) OEM coolant, cap, and thermostat NAPA CV axles and new seals ECGS bushing Rhino front guard Shortened mud flaps Alziria Black Tail Lights Nilight Headlights X-Bull Traction Boards Maaco full single stage paint job 2023 Nat CV to Knuckle seals 710573 New SKF wheel bearings/hubs BR930978 in 2024
    ACE Hardwares at least the slightly larger ones have all the metrics you need in diff pitches and hardness on hand. Limited stainless in 304 and marine grade.
     
    truckomadawg[OP] likes this.
  7. Jun 22, 2023 at 1:31 PM
    #7
    truckomadawg

    truckomadawg [OP] Member

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    M12 x 1.25 tap worked great to chase the threads, 4 bolts go in easy now. Unfortunately the 2 bolt holts (just past lower control arms) thread to the third crossmember with smaller holes, and I found a broken bolt in one of them :mad:. It's a stud at this point... guessing it's not coming out easy if the shop just left it like that
     
    Last edited: Jun 22, 2023

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