manual shifting a c6
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Post Fiend
Joined: Jan 2004
Posts: 5,377
Likes: 2
From: Elkhart IN
manual shifting a c6
Does it hurt a tranny to manualy shift it? Ive been locking my bronco out of 3rd when I'm in town because of the clunking in my t case when it shifts. I dont like it starting in 2nd, so I had been putting it in 1st then 2nd and 3rd if I need it. Does this hurt the tranny at all, I wouldnt think so but i just wanted to check.
Lead Driver
Joined: May 2000
Posts: 9,236
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From: Senoia, GA
thats how i drove my C6 in my white truck for a LONG time! i didnt like the shift points and wanted to be able to wid out a lil further so i always drove it like a stick, just no pedals. everything seemed fine to me
-cutts-
-cutts-
Senior User
Joined: Feb 2006
Posts: 368
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no problemo, thats how I'm driving mine as we speak. I even got lucky, cuz the rebuilt tranny I installed to replace the old one has a high stall torque converter. Loads of fun waiting till 3000 rpm to shift from 1st to 2nd and barking the tires. The teeneyboppers in the v-tecs don't expect that at all from a lifted 4x4.
Seriously, its no problem at all
Dave S
1980 F-150 Flareside 4x4
Seriously, its no problem at all
Dave S
1980 F-150 Flareside 4x4
Senior User
Joined: Apr 2005
Posts: 453
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Thats new to me i thought you had to have a shift kit to shift an auto trans like that. I learned something new today.
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Posting Guru
Joined: Oct 2004
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This is good info guys.. I didn't like where my c6 was shifting either, plus with my 35's and stock gearing, automatically shifting just wasn't working out. I had been asking another guy about this same question a little while back. Fortunately he saw this thread and emailed it to me.
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Freshman User
Joined: Feb 2005
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From: Jersey Shore
When you hear about a 'shift kit' it refers to a kit of parts that replace the factory transmission valve springs in the shift control mechanism. Frequently a shift kit can be employeed to change the amount of torque that causes the transmission to shift. This is good for aftermarket cams that move the power curve from the factory range.
It's still an auto trans just shifts at different times. You might want to find a shift kit that is set up for the points where you are currently doing your manual shifting. Then you get your auto trans back.
It's still an auto trans just shifts at different times. You might want to find a shift kit that is set up for the points where you are currently doing your manual shifting. Then you get your auto trans back.
Hotshot
Joined: Dec 2003
Posts: 18,423
Likes: 9
From: iowa
Originally Posted by Barnacle Bill
When you hear about a 'shift kit' it refers to a kit of parts that replace the factory transmission valve springs in the shift control mechanism. Frequently a shift kit can be employeed to change the amount of torque that causes the transmission to shift. This is good for aftermarket cams that move the power curve from the factory range.
It's still an auto trans just shifts at different times. You might want to find a shift kit that is set up for the points where you are currently doing your manual shifting. Then you get your auto trans back.
It's still an auto trans just shifts at different times. You might want to find a shift kit that is set up for the points where you are currently doing your manual shifting. Then you get your auto trans back.
Shift points can be adjusted by adjusting the vacumn pod or modulator to increase the line preasure although bigger cams tend to do this as they reduce teh vacumn the engine puts out thus making the tranny think it's under more power. you can also adjust it by changing the governer springs to heavier springs or reducing the wieght of the of the flyweights of the governer itself.
6th Gear
Joined: Sep 2019
Posts: 6
Likes: 0
From: Virginia
Hello, I know this reply is to a very old thread but hopefully you are still around. I have a 82 Bronco with 302 and C6 trans that starts in 2nd. I have started learning to start the truck in D but manually shift to 1st with the column shifter. Basically I am trying to do what you were doing temporarily. My bronco is starting in 2nd gear and not shifting. Is seems to down shift as it should. I am testing all of this right now. I've been told the C6 is a 3 speed but I can't figure out where 3rd gear is on the column as I have PRND12. So can you maybe tell me how this manual shift is done so I can learn it properly and not damage anything. Thanks so much. (also, I have purchased a new modulator, have not adjusted the pin, do have vacuum).
Lead Driver
Joined: Feb 2013
Posts: 5,006
Likes: 72
From: Roseville, MN
Down shifting is much the same, but you do need to be a little careful not to be going too fast as you downshift. Like don't hit 1st at 60 mph! Just take it easy on downshifts until you get a good feel for it. But basically if you wouldn't go that fast in that gear as you are accelerating then don't downshift to that gear at that speed.
On upshifts it isn't a bad idea to lift off the throttle a bit as you are shifting. Not lifting will make the shifts a little harsher on both the tranny and the passengers.
6th Gear
Joined: Sep 2019
Posts: 6
Likes: 0
From: Virginia
Hello and thanks tjc and nothing special! You are correct, my column is PRND21. I'll be practicing this. Seems like it downshifts on its own which is weird but for sure I'll have to get to know the sound of the engine. I've only drove stick shifts until this bronco. thanks also for the throttle info. I assumed I should let off the gas when shifting to another gear. You all are a big help as I do not want to damage anything!