![]() To go from 8L to 7H, again get the RPMs down speed down then slide red button back forward again but don’t take foot off throttle or things will make a nasty gnashing noise. It downshifts right there and RPMs go back up. With a 13-speed transmission, the gears are closer together than in a 10-speed transmission, for example. Trucks using 13-speed transmissions allow certain gears to have high and low settings, so you’ll use the same gear position more than once after pushing a button to change the setting. but the sounds of the Deeetroit Diesel screaming away is something to note as well as the whacked shift pattern on the 13-speed transmission in the 1967. What are the benefits of a 13-speed transmission in a truck? If you’re talking about floating down 1 gear with a lever shift….say 12th to 11th. Is a 1313 easier to shift than a 10th gear?ġ3 is easier than a 10 because there are more gears you don’t need to rev the engine as much with a 13 as you do with a 10. Downshift by releasing the “Overdrive” button and releasing the throttle,… Repeat this pattern through the rest of the gears, remembering to skip first-gear position. Press the “Overdrive” button and release the throttle to move to ninth gear. How do you shift a 13 speed transmission? Press the “Overdrive” button on your gear shift as you prepare to switch to seventh gear.Press the “High/Low Gear” button on your gear shift.Shift normally through the first five gears, just as you would in a manual-transmission car or a 10-speed transmission truck.What is the difference between a 13 speed and a 18 speed? How do you shift a SPD 13? You have the capability of HI or LOW range in the upper gears by using the red switch. If you understand a 9 speed pattern you will pick up on how to split 6-13 fairly quickly. You can actually drive it much like you do a regular ten speed. Then 6-9 you can split hi-low by using the red button. Don’t let it stress you too badly though. Hey Danny that thirteen speed is a wonderful transmission, especially when hauling a really heavy load up and down some hills. You would very rarely use all 18 gears in every day usage. An 18 speed also allows you to split the 5 lower gears giving you the original 9 gears times 2. It is a "box".Whats the difference between a 13 speed and 18 speed?Ī 13 speed has a splitter function which is only active in the high range. It gets less pulling steep grades / headwinds. It weighs about 5700 lbs with "nothing" in it. Once in a while it gets 13 - good tailwind / slower speed. My T/A gets 11 - 12 mpg on a "long" highway runs at 65 - 75. Mileage "benefit" (OD) is neglible - maybe 1 - 2 mpg at 65 - 75. ![]() OD allows a given vehicle to run lower rpm at highway / freeway speed - obviously. Power shift is provided by a hydraulically-controlled planetary that provides an under-drive to each gear. Tractor must be stopped, and clutch used, to shift ranges. Most trucks use a basic shift pattern in the form of an 'H,' based on the the standard five-speed transmission cars use. The transmissons were not "cheap" - $314. Power shift between pairs 1-2 and 3-4 in each range, with synchronized shift between 2-3. I doubt (but do not really know) that any dealer (or IH) provided any 5 speed transmission in vehicles as part of "dealer stock". You asked about a T-34 - if you read my "signature" you might have noticed that my T/A has a T-34.įrom my limited perspective (I purchased / ordered my T/A new), the original buyer had to order the 5 speed when he ordered the vehicle. I assume the ratios listed for the T-35 are correct, but I personally do not know.īTW - the IH 5 speeds were made by Spicer. The ratios for IH T-34 / T-36 are correct. Your link lists a lot of transmissions - Borg Warner is a "small part". I think there might be "kits" for the NV4500 - see Skunkwerks - assume that "fits" easier (relative term) in the Scout. The trans must be some number of inches longer than a 4 sp, so that means new drive lines front and rear plus the mounts. You would have to "redo" the trans hump in the cabin. I do not know / recall someone putting the IH 5 sp in a Scout. ![]() "We" were trying to identify the 5speeds externally, but nothing conclusive was found. I am pretty sure all 3 were used on various models of the medium (and probably heavy) duty trucks.įrom what I have read here, the trans case is the same for all 3 transmissions. I am not sure of the "origin" (which IH) of the T-35. Answer (1 of 2): The 13 speed transmission gets its name from it having 13 different forward gear ratios. The T-34 / T-36 were offered on the Travelalls and full size pickups - not on Scouts - not enough "room". Yes, the T-34, T-36 (and T-35) are "clunky" / big truck transmissions.įirst and reverse are non-synchro on the T-34 / T-36. ![]()
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