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Thread: M322 Trailer Tire Recommendations to Lower Deck Height

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    Default M322 Trailer Tire Recommendations to Lower Deck Height

    I just purchased a 2008 Terex M322 equipment trailer. The trailer is nice but I need to get my overall height lower. I pull a large tractor and as it sits, the top of the cab is at 12'11". I would really like to get closer to 12'6". What tire/wheel combo would you recommend to lower the deck height about 4-6"? It currently has the Michelin 465/65R22.5 tires on it. The tires are new but they just make the trailer too tall. I can not scoot the tractor back to get off the wheel well due to the ramps not clearing the Bush Hog tail wheels and I can't pull it forward anymore due to the loader......The trailer/tractor is pulled by an M925A2. Thanks!


    20181017_170649.jpg

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    I'm the dude, man! Steel Soldiers Vendor simp5782's Avatar
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    I replied to your other post. You can cut the wheel well humps off and gain that 3 inches

    You will need to turn that 8.3 up some to pull that trailer. It will not like it. More air is key, maybe a 50 turbo

    You have 425 65 22.5s which at 44in tall.

    You can go to a 255 70 22.5 or 275 70 22.5

    Maybe even a 215 70 19.5 or a 235 75 19.5

    Remember the shorter the tire the less capacity and the heavier it pulls

    On 275s
    Last edited by simp5782; 10-18-2018 at 02:16.
    2008 F-250 6.4L Powerstroke
    1979 AM General M920
    1984 AM General M915A1 (Big Cam III, HT3B Turbo, Brushless 24v Alternator with equalizer, A/C, Rear 20,000lb winch. 11R24 rear tires and 395s up front.)
    1984 AM General XM923A4 ( Big Cam III NTC-400, HT4B turbo, Intercooled, #10 button, Dual fuel Line setup - MRAP Aluminum Radiator - 7" Ram Air Intake system - Dual 115 gallon tanks - Air Conditioning - 145amp alternator - Puradyn Oil Bypass system, CAT 7155 16speed transmission, riding on 16.00 AT-3s on HEMTT wheels. )
    M923A1
    M931A2
    M1083
    M1078
    M796 Bolster
    M322 Equipment Trailer
    MEP-804A


    901-318-8353 for Help in and or around the Memphis area or transporting in the southeast. Text me first before calling.

    Tires (HMMWV, 395s, 1600s) and Transportation Vendor

    Wes

    Videos at https://www.youtube.com/results?search_query=5782simp

    https://www.youtube.com/channel/UCTd...D4dOJidPFnmYGA

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    Thanks Simp! Love your Youtube channel BTW. Hey have you ever messed with the Bosch pump? I do want to turn up both trucks but no way in **** will I touch it. I read most of the turning up the 8.3 thread and NO WAY. Sounds simple but......

    We were looking at the wheel humps. I think they need to go. This is 99.9% an on-highway trailer with only pulling off into the fields to be mowed. I know you have one of these. Did you change tire sizes? What size would you recommend?

    Thanks again!

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    Colonel MAdams's Avatar
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    I am looking into 255/70/22.5 but they aren't as cheap as normal size trailer tires. Wes, when you load a 5 ton on the trailer, do you pull it in forward, or back it onto the trailer?

    Steelreaper, the pump mods are pretty simple but you'll need a egt gauge. You're going to want to turn it up a bit. My truck is turned way up and it still struggles with the hills in CA
    Attached Images Attached Images
    Last edited by MAdams; 10-18-2018 at 13:22. Reason: Add pic
    MK23 7 ton
    M322 trailer
    M931A2
    M105A2
    M35A3

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    MAdams,

    I was planning on buying the boost and EGT gauges from MTG. I know the trans is rated up to 300 HP and about 1,000 lbs of torque. My question is how close can I get to those marks and still retain the reliability of the engine and trans?

    Simp,

    How is the big cam doing? Also why did you swap out the Allison? Regulary pulling the M322 plus a 6 ton tractor is that something I need to look into or will bumping up the 8.3 with the Allison be enough?

    Thanks guys

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    I'm the dude, man! Steel Soldiers Vendor simp5782's Avatar
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    Quote Originally Posted by Steelreaper80 View Post
    MAdams,

    I was planning on buying the boost and EGT gauges from MTG. I know the trans is rated up to 300 HP and about 1,000 lbs of torque. My question is how close can I get to those marks and still retain the reliability of the engine and trans?

    Simp,

    How is the big cam doing? Also why did you swap out the Allison? Regulary pulling the M322 plus a 6 ton tractor is that something I need to look into or will bumping up the 8.3 with the Allison be enough?

    Thanks guys
    The allison's only lasted 30k plus they are gutless with power on a small cam. I put the 16spd in to see what power ranges I could keep in with the 16spd. On 395s with the small cam and cat 7155 it was a good truck. It would roll up towards 85 pretty easy empty. And hold 65 to 70 on flatland easily.

    Lets put it this way with the big cam, I can carry a 5ton on the m322 and still ride a 923A2s tailgate if hes empty down the highway and even on hills
    2008 F-250 6.4L Powerstroke
    1979 AM General M920
    1984 AM General M915A1 (Big Cam III, HT3B Turbo, Brushless 24v Alternator with equalizer, A/C, Rear 20,000lb winch. 11R24 rear tires and 395s up front.)
    1984 AM General XM923A4 ( Big Cam III NTC-400, HT4B turbo, Intercooled, #10 button, Dual fuel Line setup - MRAP Aluminum Radiator - 7" Ram Air Intake system - Dual 115 gallon tanks - Air Conditioning - 145amp alternator - Puradyn Oil Bypass system, CAT 7155 16speed transmission, riding on 16.00 AT-3s on HEMTT wheels. )
    M923A1
    M931A2
    M1083
    M1078
    M796 Bolster
    M322 Equipment Trailer
    MEP-804A


    901-318-8353 for Help in and or around the Memphis area or transporting in the southeast. Text me first before calling.

    Tires (HMMWV, 395s, 1600s) and Transportation Vendor

    Wes

    Videos at https://www.youtube.com/results?search_query=5782simp

    https://www.youtube.com/channel/UCTd...D4dOJidPFnmYGA

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    I'm the dude, man! Steel Soldiers Vendor simp5782's Avatar
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    Quote Originally Posted by MAdams View Post
    I am looking into 255/70/22.5 but they aren't as cheap as normal size trailer tires. Wes, when you load a 5 ton on the trailer, do you pull it in forward, or back it onto the trailer?

    Steelreaper, the pump mods are pretty simple but you'll need a egt gauge. You're going to want to turn it up a bit. My truck is turned way up and it still struggles with the hills in CA
    Cargo trucks and dump trucks go forward. Due to the rear boagie and bed weighing more than the cab, front axle and engine. But I back it about 10inches off the headboard. Dump trucks the rear tires are at the very rear of that rear deck hump. You might not be able to cause with my hydraulic ramps I can lock them straight up as yours have the little bend over
    I load tractors backwards with the front tires at the rear of the rear wheel jump. I am also looking at a lift axle I have laying around to add on to get rid of some tongue weight
    2008 F-250 6.4L Powerstroke
    1979 AM General M920
    1984 AM General M915A1 (Big Cam III, HT3B Turbo, Brushless 24v Alternator with equalizer, A/C, Rear 20,000lb winch. 11R24 rear tires and 395s up front.)
    1984 AM General XM923A4 ( Big Cam III NTC-400, HT4B turbo, Intercooled, #10 button, Dual fuel Line setup - MRAP Aluminum Radiator - 7" Ram Air Intake system - Dual 115 gallon tanks - Air Conditioning - 145amp alternator - Puradyn Oil Bypass system, CAT 7155 16speed transmission, riding on 16.00 AT-3s on HEMTT wheels. )
    M923A1
    M931A2
    M1083
    M1078
    M796 Bolster
    M322 Equipment Trailer
    MEP-804A


    901-318-8353 for Help in and or around the Memphis area or transporting in the southeast. Text me first before calling.

    Tires (HMMWV, 395s, 1600s) and Transportation Vendor

    Wes

    Videos at https://www.youtube.com/results?search_query=5782simp

    https://www.youtube.com/channel/UCTd...D4dOJidPFnmYGA

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    Ill buy anyone’s tires and wheels...
    4ea Tatra 813's
    Tatra 805
    Lohr
    1989 hagglunds bv206 6cyl
    Polaris mv7
    m35a2 with hummer body
    M1070 HET
    m322lt

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    I'm the dude, man! Steel Soldiers Vendor simp5782's Avatar
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    Quote Originally Posted by tatra813 View Post
    Ill buy anyone’s tires and wheels...
    I think I've got 2 or 3 stock wheels with the 425 Michelin xzls. Tires are just good spares

    Ive got high tread 90 95 percent Michelins that came on the globe trailers. They are 385 65 22.5 ao the deck is almost 2 in lower. They are around 300 ea. Pm me if interested
    Last edited by simp5782; 11-04-2019 at 00:49.
    2008 F-250 6.4L Powerstroke
    1979 AM General M920
    1984 AM General M915A1 (Big Cam III, HT3B Turbo, Brushless 24v Alternator with equalizer, A/C, Rear 20,000lb winch. 11R24 rear tires and 395s up front.)
    1984 AM General XM923A4 ( Big Cam III NTC-400, HT4B turbo, Intercooled, #10 button, Dual fuel Line setup - MRAP Aluminum Radiator - 7" Ram Air Intake system - Dual 115 gallon tanks - Air Conditioning - 145amp alternator - Puradyn Oil Bypass system, CAT 7155 16speed transmission, riding on 16.00 AT-3s on HEMTT wheels. )
    M923A1
    M931A2
    M1083
    M1078
    M796 Bolster
    M322 Equipment Trailer
    MEP-804A


    901-318-8353 for Help in and or around the Memphis area or transporting in the southeast. Text me first before calling.

    Tires (HMMWV, 395s, 1600s) and Transportation Vendor

    Wes

    Videos at https://www.youtube.com/results?search_query=5782simp

    https://www.youtube.com/channel/UCTd...D4dOJidPFnmYGA

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    frank8003 (11-04-2019)

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    General tatra813's Avatar
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    Quote Originally Posted by simp5782 View Post
    I think I've got 2 or 3 stock wheels with the 425 Michelin xzls. Tires are just good spares

    Ive got high tread 90 95 percent Michelins that came on the globe trailers. They are 385 65 22.5 ao the deck is almost 2 in lower. They are around 300 ea. Pm me if interested
    Will those 385’s fit on the same rims?
    4ea Tatra 813's
    Tatra 805
    Lohr
    1989 hagglunds bv206 6cyl
    Polaris mv7
    m35a2 with hummer body
    M1070 HET
    m322lt

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