a few tranny questions - 2003-04 Mach 1 Registry Owners Club

grimyth · 09-13-2010, 09:00 AM

Hey everyone, I am in need a hug

j/k

So on Friday I was cruising on base, and everything was ok. I get off base attempt to shift into fourth and it wouldnt go in gear, just grinded.... I was a little confused, because it had never done that before. I tried again same result.... I never have had even slight grinding, so for something so sudden I am a little puzzled.

I came home did a search on the forum, and Saturday I did a lucas/ATF fluid change hoping I would get outta this the easy way......nope!

I can only assume it is the synchro in there, I can shift from third let the RPMS drop all the way and about 50% of the time it will go in with a slight grind, the other 50 it will go in quietly. Either way its broke and needs fixed.

The car is my DD, I have no intentions to go past 550 HP, but we all know how far intentions get us....as of right now, no major mods, exhaust intake,gears, intake spacer...... I am still upside down on the car, so..

now for the questions:

Is it worth the extra 1000 dollars or more to go to a T56?

is there and advantage to having one over the other?

Is the t56 as noisy as the 3650?

Do they have the throwout bearing problems still aswell?

Does anyone have any opinion on what the best place to get either option... rebuild/or t56....

Any ideas or input is appreciated.....

money is tight, but I cant see spending 1k or so on a transmission now, only to have to upgrade at a later point... thanks!

Mach916 · 09-13-2010, 12:17 PM

from what i know.. 3650 and t56 have the same syncro problems.. 3650 should be fine for you app.. 3650 is lighter then the t56.. talk to ITLRUN for a new one.. or talk to promotion for a built one... search im sure you ll find lots of info.

grimyth · 09-13-2010, 03:09 PM

It is wierd... isnt 3rd and 4th the same fork and syncro? 3rd is like butter... I dont really know.... I did have a little more time to do some more researching, learned a little more either way transmission has to come out.. I will keep everyone posted.

Mach828 · 09-13-2010, 03:14 PM

T56 magnum FTW. That's what I personally want.

grimyth · 09-13-2010, 05:03 PM

It goes in every gear other than 4th smooth as silk...

nickster · 09-13-2010, 08:50 PM

pmp,s built 3650 is no better,i destroyed 2nd gear syncro or bent a fork,2nd time at the track,will go through it this winter

Mach916 · 09-14-2010, 03:50 AM

Quote:

Originally Posted by Mach1Marauder

The syncs are different, hence different fluids that you're SUPPOSED to run in them.

i wasnt saying they are the exact same syncs... just that they have similar syncro problems or even similar problems is general..

grimyth · 09-25-2010, 08:35 AM

Well I decided that I wasn't gonna put 2k into a 3650, or over 1k on a stock trans. I have decided to go ahead and do the Viper spec T56 swap.... Shouldnt be too bad of a swap... here goes nothin!

09-13-2010, 09:00 AM	#1
grimyth Registered User Join Date: Oct 2009 Location: Georgia Posts: 76	a few tranny questions Hey everyone, I am in need a hug j/k So on Friday I was cruising on base, and everything was ok. I get off base attempt to shift into fourth and it wouldnt go in gear, just grinded.... I was a little confused, because it had never done that before. I tried again same result.... I never have had even slight grinding, so for something so sudden I am a little puzzled. I came home did a search on the forum, and Saturday I did a lucas/ATF fluid change hoping I would get outta this the easy way......nope! I can only assume it is the synchro in there, I can shift from third let the RPMS drop all the way and about 50% of the time it will go in with a slight grind, the other 50 it will go in quietly. Either way its broke and needs fixed. The car is my DD, I have no intentions to go past 550 HP, but we all know how far intentions get us....as of right now, no major mods, exhaust intake,gears, intake spacer...... I am still upside down on the car, so.. now for the questions: Is it worth the extra 1000 dollars or more to go to a T56? is there and advantage to having one over the other? Is the t56 as noisy as the 3650? Do they have the throwout bearing problems still aswell? Does anyone have any opinion on what the best place to get either option... rebuild/or t56.... Any ideas or input is appreciated..... money is tight, but I cant see spending 1k or so on a transmission now, only to have to upgrade at a later point... thanks! Last edited by grimyth; 09-13-2010 at 09:33 AM.

09-13-2010, 12:17 PM	#2
Mach916 Registered User Join Date: Feb 2008 Location: Sacramento, Ca Posts: 1,044	Re: a few tranny questions from what i know.. 3650 and t56 have the same syncro problems.. 3650 should be fine for you app.. 3650 is lighter then the t56.. talk to ITLRUN for a new one.. or talk to promotion for a built one... search im sure you ll find lots of info. __________________ 2003 Mach 1 5spd Black with IUP Engine Mods: cone filter, Crower stage 2 cams, Hooker long tubes, SLP Powerflo exhaust Rear end: Cobra diff, moser axles, 3.73 gears, Ford Racing aluminum driveshaft Suspension: Eibach Pro kit with poly isolators And some other small things... 348.6/331.6 sae

09-13-2010, 03:09 PM	#3
grimyth Registered User Join Date: Oct 2009 Location: Georgia Posts: 76	Re: a few tranny questions It is wierd... isnt 3rd and 4th the same fork and syncro? 3rd is like butter... I dont really know.... I did have a little more time to do some more researching, learned a little more either way transmission has to come out.. I will keep everyone posted.

09-13-2010, 03:14 PM	#4
Mach828 Dark Knight Join Date: Nov 2009 Location: Albuquerque, NM Posts: 5,759	Re: a few tranny questions T56 magnum FTW. That's what I personally want. __________________ Vortech V2 S-trim, E85, A2A Treadstone, Comp cams, built engine, full exhaust, built rear, built 4r70, more mods. Tuned by me with SCT Advantage

09-13-2010, 05:03 PM	#5
grimyth Registered User Join Date: Oct 2009 Location: Georgia Posts: 76	Re: a few tranny questions It goes in every gear other than 4th smooth as silk...

09-13-2010, 08:50 PM	#6
nickster certified MACH 1 nut Join Date: Apr 2004 Location: nova scotia canada Posts: 1,520	Re: a few tranny questions pmp,s built 3650 is no better,i destroyed 2nd gear syncro or bent a fork,2nd time at the track,will go through it this winter __________________ shm stage 2 cams,dynomax longtubes,2 3/4 h pipe homemade,excal2,wideband commander,proracers package,60#injectors,2400 mas air,eaton,forged motor,4# metco ring,1 of a kind pully bridge,and great #s on a stock eaton 476.88rwhp-451.74rwtq

09-25-2010, 08:35 AM	#8
grimyth Registered User Join Date: Oct 2009 Location: Georgia Posts: 76	Re: a few tranny questions Well I decided that I wasn't gonna put 2k into a 3650, or over 1k on a stock trans. I have decided to go ahead and do the Viper spec T56 swap.... Shouldnt be too bad of a swap... here goes nothin!

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