gtz gearbox to 20 valve

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gtz gearbox to 20 valve

Postby toyonut » Thu May 27, 2004 7:49 pm

i am sure this has been done before, but i cant find it.
can someone give me a link if it has been done before or can someone tell me if it is a bolt on swap cos i would be doing it in my work garage with a hoist. It would be good to get lsd and a stronger box when i replace it :D it is a bit crunchy now :)
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Postby Bazda » Thu May 27, 2004 8:40 pm

i think it shoudl fit straight on, but aint to sure, u can try www.twimcam16.com

also the ratios are slightly different, but not that much different. I recon 3rd gear will be a bit of a bugger on a 20v, as the 3rd in the gze boxes go much further.
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Postby strap-on » Thu May 27, 2004 8:53 pm

according to the figures mr revhead posted up, all the ratios xcept 1st are a shit load shorter unless im mistaken
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Postby 4AGE 8U » Fri May 28, 2004 2:34 am

from as far as i know the 20v clutch doesnt line up with the box and it is recommended that u should have the gtz drive shafts are well because they are much bigger than the old 20v's other than that u shouldnt have any major problems.

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Postby Mr Revhead » Fri May 28, 2004 11:35 am

you must use the gtz shafts. the 20v ones wont fit. have you got a box? iv got one for sale... has lsd and shafts. $500cash plus freight ($80)
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Postby neo » Fri May 28, 2004 1:17 pm

its not re-con'd by any chance?
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Postby Mr Revhead » Fri May 28, 2004 1:37 pm

nope. but its all good. only reason its for sale is hes uprated to a different box with TRD lsd
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Postby Bazda » Fri May 28, 2004 2:04 pm

i recon it woudl make a 20v slower. why because of the extra weight and cos of the very high 3rd gear on the gtz box.
my 3rd gear goes to 152kph at 7500rpm

if i was to put it on a 20v which revs to 8000rpm 3rd gear would go to like 160kph, Therefore the ratio drop from 2nd to 3rd would be real bad. As i have driven a few 20v cars 3rd gear doesnt even really pull, so putting a gtz boz in is just gonna make it even worse.
also a 20v hasnt even got that much power for a LSD to help that much, unless yoru gonna do it up.
thats just my opinion.
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Postby Mr Revhead » Fri May 28, 2004 2:10 pm

wellllllll yes and no.......
the ratios are a little wider so yeah i think not best suited to 20v. but if the engine has had a few mods you may not notice.
also 3rd is a damn good gear in the ae101s! mine pulls like a school boy from 75ish in 3rd! awesome for overtaking volvo drivers :twisted:
an lsd would be handy in the right conditions..... i dont think a stock 20v really 'needs' one but i wish i had one some times!
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Postby toyonut » Fri May 28, 2004 2:51 pm

i didnt think about the ratios, hmmmm
is there any way to make the syncros not crap out so easily in the gt apex box, cos i have no problem with wheel spin, ............. since i got my new tires. The syncros were the main reason for considering the gtz box.
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Postby Mr Revhead » Fri May 28, 2004 2:59 pm

not really. but they take aggggggeeeeess to really become a problem. if they wear really qwik id be looking at the oil or your gear change technique
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Postby strap-on » Fri May 28, 2004 3:03 pm

haha so does trd do an lsd for the 20v gear box? you would know, and i spose im dreaming here, but do the do a shorter ratio gear box as well?
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Postby Mr Revhead » Fri May 28, 2004 3:18 pm

look here:

http://www.toyota-trd.com/en/comp/drive.html

for ya gear sets. and here:



[url]http://www.toyota-trd.com/en/strt/d_lsd.html

for LSD.
as you will see yes they do those parts. but some ratios are made to order so expect to PAY for them[/url]
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Postby AceSniper » Fri May 28, 2004 3:24 pm

mm 2nd gear crunch seams to be damn common of c52/56 box's mine got fixed when i got the car, no idea what it cost the car yard tho...


got20v? wrote:haha so does trd do an lsd for the 20v gear box? you would know, and i spose im dreaming here, but do the do a shorter ratio gear box as well?


from what i rember TRD do 2 diffrent sets of ratios, and a lsd... but at an expense
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Postby Mr Revhead » Fri May 28, 2004 3:31 pm

the lsd is around $1300 dunno about the gearsets but id guess as they say made to order if you have to ask.......

3rd is the more common one. iv owned 3 and they all did it. never had probs with 2nd
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Postby strap-on » Fri May 28, 2004 4:04 pm

mmmmmm thats very short ratio * drool* my 2nd is the major problem, i think need new synros or a new gear box
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Postby 10k 20v » Fri May 28, 2004 8:13 pm

dude, if your removeing a c56 i want it
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Postby 4ageturbs » Mon May 31, 2004 6:03 pm

Hey guys i say keep the 20v gear box im sure theres les bearings in them so les lose of power through the drive train, i used to use a 4age 16v box with a padle clutch runin 12psi and puled a 14.4 at meremere then changed to ze box, had to use ze fly whel ze clutch and ze drive shafts also the rear ze gearbox mount, then lowerd it, put boost at 15 and she puled a whoping 14.4 again. If anythng use a 16v box theyre geard even lower than the 20v.
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Postby 4ageman » Mon May 31, 2004 7:01 pm

do any of you guy's know how to change gear properly because ive had my celica for 3 years now and the gear box is still going strong never gribds or anything all i have done is stuff 2 engine's. the car had 240000 odd kay's when i got it and now it read's just over 366000
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Postby Bazda » Mon May 31, 2004 7:05 pm

if you have an underpowered car then of course your not gonna break your gearbox unless u cant drive
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