I have a 1986 Fiero with a pretty much dying auto tranny, 2 gear slips, the kick seems to slip 2 gears and just redlines, the car will not allow u to floor it either... so there fore and because I hate automatic I would like to do a swap with a Fiero I found in the junk, what all will I need from this Fiero to complete this, because I know stick, pedal, cables, tranny, but do i need to change the wiring harness or anything else? I have worked on manual transmissions so I know how to swap it and all the mechanics that go along, I've just never tried switching from auto to manual.
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11:07 AM
PFF
System Bot
Old Lar Member
Posts: 13798 From: Palm Bay, Florida Registered: Nov 1999
Need the shifter, cables, mounts, master, slave, hydraulic line, pedal assembly, ECM, axles, and will need to modify the engine wiring harness for backup lights and starter wire changes. If you want the clutch safety switch you need the switch and to modify the interior harness. You should also swap the steering column to do it right.
Edit to add: ...............and obviously the flywheel, trans, and a new clutch set/throwout bearing
[This message has been edited by Mike Gonzalez (edited 11-05-2010).]
always remember the axles,,there are different sizes for every trans,....and there are 3 different types of standards isuzu, and getrag, and muncie, im sayin ask around the forum for the correct applicationm for your particular trans your gonna use,,it does matter,,,,good luck too ya,, 123
I just did this myself on my Fiero, and unless someone pays me BIG money, or the fiero is stripped down to the bare frame, I will NEVER do this again. Dropping the cradle and swapping transmissions is the easy part. remove the pedal assembly and putting the new one (with clutch pedal and bracket) is the WORST. Removing the trans cooler lines and adding the clutch line comes in a close second.
To remove the brake pedal bracket (you can't just add a clutch pedal with bracket, I tried. you must change both pedals and brackets up there.) you must remove the steering column, and remove the four nuts holding the brake booster on the firewall, which also holds the pedal bracket. Then you need to somehow remove the bracket assembly by tilting it down in the front, because right there below it is the main IP wiring harness. You gotta push it out of the way somehow. Sound difficult? Well getting the new pedal assembly in is even worse, trying to get it to fit in without totally crushing the wiring harness that you hopefully didn't destroy removing the old assembly.
LOL Matt. I will tell the op the same thing i told matt when he was over here looking at my car. I recommend NOT DOING it. To give you an idea you read Matt's post. I was buying my 88 to restore from another member on here. He wanted to keep the pedals and instead of taking them out of the car he sold me he asked me to take them out of the car I was prating out. That way i could just cut everything that was in the way instead of trying to get around the wiring harness. Even being careful you can still easily pinch the harness.
well this has been pretty discouraging... I guess this thing is gonna end up in the junk or parted out because the auto tranny is complete garbage... maybe i can find another auto tranny.
I just did this myself on my Fiero, and unless someone pays me BIG money, or the fiero is stripped down to the bare frame, I will NEVER do this again. Dropping the cradle and swapping transmissions is the easy part. remove the pedal assembly and putting the new one (with clutch pedal and bracket) is the WORST. Removing the trans cooler lines and adding the clutch line comes in a close second.
To remove the brake pedal bracket (you can't just add a clutch pedal with bracket, I tried. you must change both pedals and brackets up there.) you must remove the steering column, and remove the four nuts holding the brake booster on the firewall, which also holds the pedal bracket. Then you need to somehow remove the bracket assembly by tilting it down in the front, because right there below it is the main IP wiring harness. You gotta push it out of the way somehow. Sound difficult? Well getting the new pedal assembly in is even worse, trying to get it to fit in without totally crushing the wiring harness that you hopefully didn't destroy removing the old assembly.
Well, I'm going to encourage you a little. Just a little. Dropping the cradle and trans change is just heavy work and time consuming. Running the clutch line is somewhat PITA but mainly time consuming as you need to remove front tub and one coolant line. A helper is a blessing. I did it all alone. Now, changing the pedals is really painful because the space you are working on and orientation. Definitely the worst part. But I did not have to remove steering column and I did not have to remove the whole pedal bracket and I didn't have any wiring harness pinching problem. I just removed the brake pedal (somewhat easy) and put the smaller two back in. Still I found it very painful so if you went removing column and whole assembly I can understand why you hated it more. Would I do it in another car? Maybe. Was it worth it? Big time. Car is so much fun to drive now. So I say go for it.
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11:11 AM
PFF
System Bot
thedrue Member
Posts: 1104 From: Vancouver, WA USA Registered: Feb 2009
Ive done it, although the cars I was working with were both stripped down. Its definitely worth it and if you can get ALL the parts for a decent price go for it! Sure it is a pain in the butt but take you time and go slow it will be very worth it in the end.
Good luck!
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02:52 PM
fierosound Member
Posts: 15213 From: Calgary, Canada Registered: Nov 1999
Well, I'm going to encourage you a little. Just a little. Dropping the cradle and trans change is just heavy work and time consuming. Running the clutch line is somewhat PITA but mainly time consuming as you need to remove front tub and one coolant line. A helper is a blessing. I did it all alone. Now, changing the pedals is really painful because the space you are working on and orientation. Definitely the worst part. But I did not have to remove steering column and I did not have to remove the whole pedal bracket and I didn't have any wiring harness pinching problem. I just removed the brake pedal (somewhat easy) and put the smaller two back in. Still I found it very painful so if you went removing column and whole assembly I can understand why you hated it more. Would I do it in another car? Maybe. Was it worth it? Big time. Car is so much fun to drive now. So I say go for it.
Now let me clear this up. All you did for the pedals was remove the brake pedal, and then add the smaller brake pedal, and the clutch pedal with bracket? I see a few problems with this that I ran into. 1. I could not fully remove or install the long bolt that holds both brake and clutch pedals because it hit the HVAC black box thing (near gas pedal) before it was out of the assembly. 2. There are two bolts holding the clutch bracket to brake pedal bracket, they are indeed two separate pieces. How did get you get to the top bolt with the assembly in the car? Nearly impossible. 3. Adding on to #2, my automatic brake pedal bracket didn't have two nuts welded on to it for those two bolts. I know you could just get two nuts and use those, but that makes it even harder to get that clutch bracket attached to the brake one while in the car.
The column drops quite easy. 4 fasteners hold it up. 1 hold it to the steering shaft. Then unplug the electrical connectors and unhook the shift interlock cable if you have an automatic.
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11:45 AM
Alex4mula Member
Posts: 7405 From: Canton, MI US Registered: Dec 1999
Now let me clear this up. All you did for the pedals was remove the brake pedal, and then add the smaller brake pedal, and the clutch pedal with bracket? I see a few problems with this that I ran into. 1. I could not fully remove or install the long bolt that holds both brake and clutch pedals because it hit the HVAC black box thing (near gas pedal) before it was out of the assembly. 2. There are two bolts holding the clutch bracket to brake pedal bracket, they are indeed two separate pieces. How did get you get to the top bolt with the assembly in the car? Nearly impossible. 3. Adding on to #2, my automatic brake pedal bracket didn't have two nuts welded on to it for those two bolts. I know you could just get two nuts and use those, but that makes it even harder to get that clutch bracket attached to the brake one while in the car.
All can be done with lots of patience..
1. I was able to remove the auto pedal bolt because it is shorter. Not a big deal there. The longer bolt for the double pedal won't fit the same way. I just turned it around and put it in reverse (in from other side). Plenty of space the other way. Works perfectly. 2. Didn't I say it was big PITA? But you said it. Not impossible. And yes my bracket didn't have welded nuts so more difficult working underneath there with my back bent in a painfull way. Actually I tried it several time for over 1/2hr and then got my wife with small hands to help. She put them there in less than 5 min.
1. I was able to remove the auto pedal bolt because it is shorter. Not a big deal there. The longer bolt for the double pedal won't fit the same way. I just turned it around and put it in reverse (in from other side). Plenty of space the other way. Works perfectly. 2. Didn't I say it was big PITA? But you said it. Not impossible. And yes my bracket didn't have welded nuts so more difficult working underneath there with my back bent in a painfull way. Actually I tried it several time for over 1/2hr and then got my wife with small hands to help. She put them there in less than 5 min.
Huh. I didn't think to put them in from the other side, should have thought of that. Patience is something I lack, I really do try and I'm getting better, but at only 18 it is a little difficult. Having your wife help is cheating.
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06:30 PM
Alex4mula Member
Posts: 7405 From: Canton, MI US Registered: Dec 1999
hey the car im getting the tranny out of is a 1985 GT, mine is a 1986 SE, what kind of tranny do u think would be in the 1985GT, and what kind of clutch would i need?
Converted my 88gt to a 5spd a few months ago. The PITA is removing the trans cooler line and installing the clutch line. Just take your time and remove as much of "in the way" stuff as possible...
As far as the peddles, I unbolted my steering colum and I think the instrument cluster as well. This will give you a bit more room for the R&R of the 5spd peddles. I took the clutch peddle portion of the assembly apart to fit it back in under the dash. Not so hard to do, but working in cramped quarters upside down on your back adds a bit of stress to the project
Then you have all the lil electrical issues to deal with. But again, not too big of a deal when you have this forum to guide you along...
I would say if you want a 5spd, do it! If this is your daily driver and only means of transportation, I would reconsider...
well its a project that has been kinda forced on me as the auto tranny is going out, and i never have really owned auto trannys, the little amount of experience I've had with them makes me hate them, because manual is A LOT easier to diagnose and fix compared to auto is why im making the switch.
well its a project that has been kinda forced on me as the auto tranny is going out, and i never have really owned auto trannys, the little amount of experience I've had with them makes me hate them, because manual is A LOT easier to diagnose and fix compared to auto is why im making the switch.