G-force Vs Tremec???
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prochargedfox
New Member
I like the tremec trannys. I have a tremec t-5. Do you guys think it will hold my 347? Im in the process of building the engine right now, so I haven't tried it yet.
Blk91stang
Member
I went with G-Force because of the ability to take out my old one and literally put the new one right back in without any modifications. Already had a shifter and getting a new clutch anyways so upgrading to a 26-spline was obvious.
I paid $2,150 for the complete helical, syncro trans w/ upgraded mainshaft and billet cluster support. If it breaks, I'll get a built auto and be done with it.
I paid $2,150 for the complete helical, syncro trans w/ upgraded mainshaft and billet cluster support. If it breaks, I'll get a built auto and be done with it.
352Ford2
New Member
ms93gt said:
thats without the upgraded main shaft, dones anyone know what they are rated at without the upgraded mainshaft?
I am thinking of building a g-force, I need to do something before my t-5 blows chucks
Euphoric306
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- Apr 5, 2004
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i wouldn't be surprised if without the upgraded mainshaft the rating wasn't much higher than a stock t5, maybe up to 350 ft lbs of torque? i have heard that the output shaft is a very weak component of the stock t5 
Blk91stang
Member
The TKO sounds like a cheaper option including the extra stuff to convert considering you are getting a whole tranny. I just rebuilt my T5 due to funds but I was also considering a geforce in my future. Granted I can probably do the work myself now to do a geforce now...havn't got the ol' t5 back in the car to see if it works or not yet but with many questions and much searching I would probably get a TKO 600 with some taller rear gears. I posed this question between the 500 and 600 and the gear ratios seem to be much better with the complimenting tall rear gears. Either way both are great options... but the TKO would get my money because I believe it has a stronger and much improved foundation for a performance transmission. The Geforce is an awesome upgrade to a mediocre transmission with a hefty price tag but fairly a light package without changing a lot of extras.
Kevin
Kevin
i was looking on the g-force website, do you use the stock 5th gear overdrive? How well would that hold up on slicks with stock casing? I am on the line about these two trannies as well, and so far i think the tko is just a better choice because it is so much beefier you can go out there and beat it and not have to worry about anything. With the G-force i would feel find that the internals aren't going to break, but the case. Its like having full forged internals on a stock block, how long will it last???
timewarped1972
Member
i was doing alot of reading on this subject last night...
from what i gathered, you have the t-5. i read where it said the t-5 really got a bad rap from the older 83,84 models that were non-world class. after the world class they weren't real strong but better, and then around 90, 91, those were the strongest world class t-5.
then enter the t-5 z, the strongest production or factory t-5 made, which has been said to be a pretty decent tranny if you don't beat on it (although like with anything else some get away with it)......
then you have the tremec 3550, which was intended as a replacement and a step up from the t-5 and t-5z. stronger yet, but not bullet proof......thats the last one that uses the stock clutch set up and slip yoke, i believe.
then you have the tko 500 and 600, which are stronger and then have the upgraded input and out put shafts, same bell housing as the 3550, but uses diff slip yoke and clutch assembly.
then there's the g-force which is kinda in a catagory itself.......
is that about it in a nutt shell as far as sticks for our cars go???
...i did have a question though.....which of the tko and or g force tranny's can you power shift all day long with no worry?? and is there some of these, that i have heard rumored that you can even bang the gears with out clutching??
from what i gathered, you have the t-5. i read where it said the t-5 really got a bad rap from the older 83,84 models that were non-world class. after the world class they weren't real strong but better, and then around 90, 91, those were the strongest world class t-5.
then enter the t-5 z, the strongest production or factory t-5 made, which has been said to be a pretty decent tranny if you don't beat on it (although like with anything else some get away with it)......
then you have the tremec 3550, which was intended as a replacement and a step up from the t-5 and t-5z. stronger yet, but not bullet proof......thats the last one that uses the stock clutch set up and slip yoke, i believe.
then you have the tko 500 and 600, which are stronger and then have the upgraded input and out put shafts, same bell housing as the 3550, but uses diff slip yoke and clutch assembly.
then there's the g-force which is kinda in a catagory itself.......
is that about it in a nutt shell as far as sticks for our cars go???
...i did have a question though.....which of the tko and or g force tranny's can you power shift all day long with no worry?? and is there some of these, that i have heard rumored that you can even bang the gears with out clutching??
Euphoric306
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straight cut dog teeth GFT5 you can shift without clutch with ease, you can do it on all trannys, but it's a lot faster and a lot better for the tranny to use the clutch
Euphoric306
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EMW150
Founding Member
timewarped1972 said:
You're thinking of a Pro-shifted type trans. To explain the different types: I had my TKO Pro-shifted by Liberty when I bought it new back in probably about 2001. It was the old econo pro shift type where they remove the synchros and weld on Pro-rings. It shifted great for quite a while till I screwed up one time powershifting. The downfall to this type is it used the factory slider but it had teeth removed to speed up the engagement. When you "chunk" a gear it puts a burr on the end of the slider and since the Pro-ring needs to slide inside the slider, it caused it to not go into gear or go in with alot of effort. This type worked well but was high maintenance. So I sent it back to Liberty for a face-tooth Pro-shift. This type engages on the side of the gear instead of having to slide inside the slider. This type is pretty much maintenance free for that reason. Street driving is tricky though. If you try to shift normally, the engagement is really harsh. (like if someone was under the car hitting your trans with a 2 pound hammer). However, full throttle, 7,800 rpm powershifts are completely effortless and smooth. All these type though, you still need to use the clutch or you'll break gears. When I finally blow the TKO though, I'm going with a G-force. Just as strong as the Tremec but alot lighter.
Well i am going to be going with the G-Force T5 soon. I am getting a good deal on it installed, and the guy rebuilding it said that he has seen more tremec cases broken than G-Force T5's. I just got the turbo kit on it, and tuned i am putting 475 down to the wheels, so we will see how she holds up with dropping the hammer and on slicks
