edge transmission shift question
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Joined: Oct 2005
Posts: 38
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Originally Posted by Ftruck05
When you downshift like that and it is "harsh" you are putting alot of stress on the transmission, rear end(gears-shafts), and the driveshaft among other things. Your brakes were made to slow you down, first gear is more if you were towing something up a hill and you want to hold it in first.
Thats why I want to figure out why it's harsh and fix it. Worst comes to worst i'll just stop and then shift into first.
Your brakes are only one resource to slow you down, and in some situations it's a poor one. For example, you are facing a long steep downhill towing a load. If you use only your brakes you run he risk of overheating them, warping them, or just plain burning them out. Downshifting to a lower gear allows the engine to take a greater share of the braking and allows you to reserve your wheel braking power for emergencies.
Second, you're driving on an icy road and need to slow down. Even tapping your brakes on an icy surface can lock the wheels up and cause you to lose directional control and in some cases even speed up. Downshifting keeps the wheels spinning and keeps you in control for longer.
Senior Member
Joined: Jul 2005
Posts: 1,095
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From: North Little Rock, Arkansas
You really need to stick it in first prior to needing to downshift. Or if you can't, you need to use your brakes to slow down to about 5 mph (I'm guessing here) then throw it into 1st.
It wouldn't matter if you had an automatic transmission or a manual transmission. If your going fast enough and throw it into the next lower gear (the exception is while giving your vehicle gas) it will always buck. Not sure if that makes any sense or not....but it does to me.
A good friend of mine was drag racing (in a camaro) at the track one night and was going from 2nd to 3rd and hit 1st instead. She ate almost all the teeth off of her gears in the rear end.
From the manual.
Maximum downshift speeds1
Shift from: Transfer case position (if equipped)
2H or 4H 4L
D (Overdrive) -4 55 mph (89 km/h) 21 mph (34 km/h)
4 - 3 45 mph (72 km/h) 17 mph (27 km/h)
3 - 2 35 mph (56 km/h) 13 mph (21 km/h)
2 - 1 20 mph (32 km/h) 7 mph (11 km/h)
1Downshift at lower speeds when driving on slippery surfaces
It wouldn't matter if you had an automatic transmission or a manual transmission. If your going fast enough and throw it into the next lower gear (the exception is while giving your vehicle gas) it will always buck. Not sure if that makes any sense or not....but it does to me.
A good friend of mine was drag racing (in a camaro) at the track one night and was going from 2nd to 3rd and hit 1st instead. She ate almost all the teeth off of her gears in the rear end.
From the manual.
Maximum downshift speeds1
Shift from: Transfer case position (if equipped)
2H or 4H 4L
D (Overdrive) -4 55 mph (89 km/h) 21 mph (34 km/h)
4 - 3 45 mph (72 km/h) 17 mph (27 km/h)
3 - 2 35 mph (56 km/h) 13 mph (21 km/h)
2 - 1 20 mph (32 km/h) 7 mph (11 km/h)
1Downshift at lower speeds when driving on slippery surfaces
Suspended
Joined: Sep 2006
Posts: 1,200
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From: Algonquin Il
Dude, next time you are on an icy road downshift from drive to 1st and then post some pics of the ditch you got stuck in cause you spun out.
The only ways to fix this is A: You need to invest in a diesel with an engine brake or B: Shift into 1st at about 0-5MPH and it wont be as rough.
The only ways to fix this is A: You need to invest in a diesel with an engine brake or B: Shift into 1st at about 0-5MPH and it wont be as rough.