markie603 Posted September 11, 2009 Share Posted September 11, 2009 (edited) I have a 1988 mack superliner econoline w\a mack transmission. My question is what is the shift pattern for it? I seem to have only 8 forward gears. I was told it was a thirteen speed .Then was also told it was a ten speed and to split all 5 gears. The shift is 5 speed direct overdrive nutruel w/5 and reverse w/5 With a differential on the dash only. Edited September 12, 2009 by markd603 Quote Truck Driver Cass A Operater Heavy I Move Dirt Work 7 Days Loving Life Link to comment https://www.bigmacktrucks.com/topic/10625-mack-1988-superliner/ Share on other sites More sharing options...
BAD DOG Posted September 12, 2009 Share Posted September 12, 2009 It sounds like a 12 spd to me. 5 gears on the stick split each one, 2 gears in deep reduction, on dash, 5 reverse gears, and 5 neutral gears for a pto. Quote Link to comment https://www.bigmacktrucks.com/topic/10625-mack-1988-superliner/#findComment-40274 Share on other sites More sharing options...
markie603 Posted September 12, 2009 Author Share Posted September 12, 2009 It sounds like a 12 spd to me. 5 gears on the stick split each one, 2 gears in deep reduction, on dash, 5 reverse gears, and 5 neutral gears for a pto. Quote Truck Driver Cass A Operater Heavy I Move Dirt Work 7 Days Loving Life Link to comment https://www.bigmacktrucks.com/topic/10625-mack-1988-superliner/#findComment-40283 Share on other sites More sharing options...
markie603 Posted September 12, 2009 Author Share Posted September 12, 2009 Thank you BAD DOG The 123 Spit Fine 4 And 5 Just Don't Mach Up 4d seems to be lower than 3OD same with 5 Quote Truck Driver Cass A Operater Heavy I Move Dirt Work 7 Days Loving Life Link to comment https://www.bigmacktrucks.com/topic/10625-mack-1988-superliner/#findComment-40284 Share on other sites More sharing options...
Superdog Posted September 12, 2009 Share Posted September 12, 2009 Best thing to do is crawl under your truck and get the model number off the transmission,that way we know exactly what you have and can tell you how to properly shift it.Should be stamped on left side,If it is a 12 speed,should TRTXL1070A if I rember right. Quote Link to comment https://www.bigmacktrucks.com/topic/10625-mack-1988-superliner/#findComment-40286 Share on other sites More sharing options...
markie603 Posted September 12, 2009 Author Share Posted September 12, 2009 Best thing to do is crawl under your truck and get the model number off the transmission,that way we know exactly what you have and can tell you how to properly shift it.Should be stamped on left side,If it is a 12 speed,should TRTXL1070A if I rember right. Quote Truck Driver Cass A Operater Heavy I Move Dirt Work 7 Days Loving Life Link to comment https://www.bigmacktrucks.com/topic/10625-mack-1988-superliner/#findComment-40288 Share on other sites More sharing options...
markie603 Posted September 12, 2009 Author Share Posted September 12, 2009 Thank You SuperDog I's Dark Right Now But I Was Told By A Mack Dealer It Was A 13 Speed This Do Not Shift Like any 13 Speed 4 And 5 Just Dont Split Right Quote Truck Driver Cass A Operater Heavy I Move Dirt Work 7 Days Loving Life Link to comment https://www.bigmacktrucks.com/topic/10625-mack-1988-superliner/#findComment-40289 Share on other sites More sharing options...
HK Trucking Posted September 13, 2009 Share Posted September 13, 2009 Thank You SuperDog I's Dark Right Now Use a flashlight.Could be a TRDL1070 10 speed if it doesn't have a 2nd stick or a dash switch for deep reduction.That "differential" switch that you're referring to sounds like it's a power divider lock. Quote "If You Can't Shift It Smoothly, You Shouldn't Be Driving It" Link to comment https://www.bigmacktrucks.com/topic/10625-mack-1988-superliner/#findComment-40292 Share on other sites More sharing options...
markie603 Posted September 13, 2009 Author Share Posted September 13, 2009 Thank You SuperDog I's Dark Right Now But I Was Told By A Mack Dealer It Was A 13 Speed This Do Not Shift Like any 13 Speed 4 And 5 Just Dont Split Right Quote Truck Driver Cass A Operater Heavy I Move Dirt Work 7 Days Loving Life Link to comment https://www.bigmacktrucks.com/topic/10625-mack-1988-superliner/#findComment-40315 Share on other sites More sharing options...
markie603 Posted September 13, 2009 Author Share Posted September 13, 2009 The Only Number I See Is 11KBA Quote Truck Driver Cass A Operater Heavy I Move Dirt Work 7 Days Loving Life Link to comment https://www.bigmacktrucks.com/topic/10625-mack-1988-superliner/#findComment-40316 Share on other sites More sharing options...
HK Trucking Posted September 13, 2009 Share Posted September 13, 2009 The Only Number I See Is 11KBAThat's a partial part # for the housing.The number you need to find will begin wth "TR". Quote "If You Can't Shift It Smoothly, You Shouldn't Be Driving It" Link to comment https://www.bigmacktrucks.com/topic/10625-mack-1988-superliner/#findComment-40317 Share on other sites More sharing options...
markie603 Posted September 13, 2009 Author Share Posted September 13, 2009 That's a partial part # for the housing.The number you need to find will begin wth "TR". Quote Truck Driver Cass A Operater Heavy I Move Dirt Work 7 Days Loving Life Link to comment https://www.bigmacktrucks.com/topic/10625-mack-1988-superliner/#findComment-40320 Share on other sites More sharing options...
markie603 Posted September 13, 2009 Author Share Posted September 13, 2009 The Only Thing The Side is MACK TRANSISSON MAXITOROUE Quote Truck Driver Cass A Operater Heavy I Move Dirt Work 7 Days Loving Life Link to comment https://www.bigmacktrucks.com/topic/10625-mack-1988-superliner/#findComment-40321 Share on other sites More sharing options...
other dog Posted September 13, 2009 Share Posted September 13, 2009 I know nothing about later model Mack transmissions, but on a lot of overdrive transmissions 4th. is back towards the seat and 5th. is towards the dash.Could this be the problem?..just a thought (Paul Van Scott).When you find out what trans. it is I saw these shift pattern decals on e-bay.http://stores.shop.ebay.ca/Pro-Gear-and-Transmission-Inc_Mack-Shift-Pattern-Decals_W0QQ_fsubZ277834018QQ_sidZ131090448QQ_trksidZp4634Q2ec0Q2em322#item3ca108a75d Quote Producer of poorly photo-chopped pictures since 1999. Link to comment https://www.bigmacktrucks.com/topic/10625-mack-1988-superliner/#findComment-40322 Share on other sites More sharing options...
HK Trucking Posted September 13, 2009 Share Posted September 13, 2009 The Only Thing The Side is MACK TRANSISSON MAXITOROUEGet out your wire brush and some solvent.Clean off around the left side of the trans main case, about halfway up from the bottom and you should find the number.It's stamped in the aluminum, so it may be hard to find unless you really clean it off and look carefully. Quote "If You Can't Shift It Smoothly, You Shouldn't Be Driving It" Link to comment https://www.bigmacktrucks.com/topic/10625-mack-1988-superliner/#findComment-40323 Share on other sites More sharing options...
markie603 Posted September 14, 2009 Author Share Posted September 14, 2009 Thank You You All I Now It;s Mess Up Or as You All Helped I'm Going To To Run AS 8 SpeedDriving Be Back Around 09/17 2009 So Happy I Im In This Club Markie Quote Truck Driver Cass A Operater Heavy I Move Dirt Work 7 Days Loving Life Link to comment https://www.bigmacktrucks.com/topic/10625-mack-1988-superliner/#findComment-40344 Share on other sites More sharing options...
leweymeister Posted June 20, 2010 Share Posted June 20, 2010 I have a 1988 mack superliner econoline w\a mack transmission. My question is what is the shift pattern for it? I seem to have only 8 forward gears. I was told it was a thirteen speed .Then was also told it was a ten speed and to split all 5 gears. The shift is 5 speed direct overdrive nutruel w/5 and reverse w/5 With a differential on the dash only.I have a truck that is very similar, with the maxitorque transmission. There is a reverse range, a low range, and a direct range. 5 gears per range. For most operations, you can just drive in direct or reverse, and shift the truck like a 5 speed. The low range tops out at maybe 30 mph, and I don't think you're even supposed to drive it more than first gear... If I have a really heavy load or am in soft stuff, sometimes I'll use low range to get started in first gear and then shift the range lever to direct on the fly. I know this is an old post but I figure'd I throw in my 2 cents. The diff switch on the dash is undoubtedly a power divider lock, as mentioned by the other people who replied to this. Quote Link to comment https://www.bigmacktrucks.com/topic/10625-mack-1988-superliner/#findComment-57758 Share on other sites More sharing options...
hillconst1 Posted June 20, 2010 Share Posted June 20, 2010 Sure sounds like a 12 speed, shift 1-5 and split each gear, use low hole on dash in low gear only shifter will lock into left side of pattern when compound shifts so that deep reduction can only be used in low gear, flip switch on dash to release shifter and return to direct. My 12 speed in my '88 didn't like splitting 4th and 5th either but if you split in neutral instead of preselecting the shift it helped sometimes to keep it from dragging. I assume there is some way to fix this but I never worried about it because I was finally able to make it sync myself with some practice. Also TRTXL1070A used two sticks and a TRTXL1070B used the air shift dash switch. Quote Link to comment https://www.bigmacktrucks.com/topic/10625-mack-1988-superliner/#findComment-57763 Share on other sites More sharing options...
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