TR- 3650 "Synchro Kit"

scp616 · September 13th, 2009, 02:06 PM

Has anyone installed ford's technical bulletin revision for the 1st-2nd and 2nd-3rd shift problem? It includes "2nd main shaft gear, 1-2 synchronizer assembly, 3rd main shaft gear, 3-4 synchronizer assembly, the 1-2 and 3-4 shift ford and rail assemblies, blocking rings and oil filler level sticker" They also say to only put 3 liters of non-synthetic mercon ATF
Apparently these modifications eliminated the problem with 2nd gear being notchy and sometimes kicking you out, and makes the 3650 capable of holding 750 hp
The kit is about $650 thought.... and it doesn't look like the kit includes much for the price. Anyone had any experience with this kit?

rtgt06 · September 13th, 2009, 02:23 PM

I'm looking into "auto gear" right now for my second gear grind problems. I was quoted $400 for the kit I'm getting. Might be worth a look. Don't know if this helps or not but good luck with the fix

scp616 · September 13th, 2009, 02:33 PM

I checked out the auto gear site, where did you find kits for the 3650? all i found was t45, t56 stuff
They fixed the trans problem I'm experiencing in 2004 with the new kit, so i would take your tranny apart and check that it's not just synchro wear before you order that kit, you could get by with just a 100 rebuild kit then
I don't think i'm going to get off that easily lol

huggy bear · September 13th, 2009, 05:05 PM

Say I were to rebuild my tranny should I take it to a mech or can an average person do it??

scp616 · September 13th, 2009, 07:42 PM

If you do a good job of watching how everything comes apart, i think anyone can put a manual transmission back together. I would recommend taking a LOT of pictures of how everything goes together, my dad and i rebuilt a 700R4 and we just took a picture with a digital camera after every step and then watched the pictures on the laptop to put it back together
worked great lol

Willy Mo · September 14th, 2009, 12:57 AM

are you talkinaboutthe kit at ddperformance.com?

scp616 · September 14th, 2009, 08:32 AM

Yeah that's it
I'll try to find the link to that technical service bulletin and post it
Apparently 2nd and 3rd gear are actually made differently, i'm guessing to accommodate the new syncrhonizers

Willy Mo · September 14th, 2009, 10:17 PM

yeah well I plan on buying this kit so i dont have toworry about it ever again.

scp616 · September 14th, 2009, 10:21 PM

Yeah i will definitely do the same when i build my new motor, but i just swapped the fluid today, and it made a huge difference. So now that i don't feel like i'm grenading 2nd gear every time i shift, i'm just going to wait until i pull the motor

Willy Mo · September 14th, 2009, 10:37 PM

so you think i should try to change the fluid? cuz third gear isnt to badwhen its cold its when its warm that it really grinds.

scp616 · September 14th, 2009, 10:50 PM

I would, it made a huge difference in my car
I never had a problem with third, but i had to avoid 2nd, now i can downshift whenever

Willy Mo · September 14th, 2009, 10:52 PM

damn i will change it tomorrow.

scp616 · September 14th, 2009, 10:53 PM

cool man, let me know if it helped

Willy Mo · September 14th, 2009, 10:55 PM

will do, but I have a feeling the ol 3650 will be coming out this winter for the rebuild.

September 13th, 2009, 02:06 PM	#1
scp616 Regular 2002 Mustang GT Join Date: Mar 2009 Location: SC Posts: 326 iTrader: 0 reviews	TR- 3650 "Synchro Kit" Has anyone installed ford's technical bulletin revision for the 1st-2nd and 2nd-3rd shift problem? It includes "2nd main shaft gear, 1-2 synchronizer assembly, 3rd main shaft gear, 3-4 synchronizer assembly, the 1-2 and 3-4 shift ford and rail assemblies, blocking rings and oil filler level sticker" They also say to only put 3 liters of non-synthetic mercon ATF Apparently these modifications eliminated the problem with 2nd gear being notchy and sometimes kicking you out, and makes the 3650 capable of holding 750 hp The kit is about $650 thought.... and it doesn't look like the kit includes much for the price. Anyone had any experience with this kit? __________________ 02 GT --> long tube headers w/ x pipe and flow masters, throttle body w/ intake plenum, cold air intake, short throw, 255 nitto 555's all around, 373 diff gears, 2 inch lowering kit w/caster camber plates, sony radio working with stock system

September 13th, 2009, 02:33 PM	#3
scp616 Regular 2002 Mustang GT Join Date: Mar 2009 Location: SC Posts: 326 iTrader: 0 reviews	I checked out the auto gear site, where did you find kits for the 3650? all i found was t45, t56 stuff They fixed the trans problem I'm experiencing in 2004 with the new kit, so i would take your tranny apart and check that it's not just synchro wear before you order that kit, you could get by with just a 100 rebuild kit then I don't think i'm going to get off that easily lol __________________ 02 GT --> long tube headers w/ x pipe and flow masters, throttle body w/ intake plenum, cold air intake, short throw, 255 nitto 555's all around, 373 diff gears, 2 inch lowering kit w/caster camber plates, sony radio working with stock system

September 13th, 2009, 07:42 PM	#5
scp616 Regular 2002 Mustang GT Join Date: Mar 2009 Location: SC Posts: 326 iTrader: 0 reviews	If you do a good job of watching how everything comes apart, i think anyone can put a manual transmission back together. I would recommend taking a LOT of pictures of how everything goes together, my dad and i rebuilt a 700R4 and we just took a picture with a digital camera after every step and then watched the pictures on the laptop to put it back together worked great lol __________________ 02 GT --> long tube headers w/ x pipe and flow masters, throttle body w/ intake plenum, cold air intake, short throw, 255 nitto 555's all around, 373 diff gears, 2 inch lowering kit w/caster camber plates, sony radio working with stock system

September 14th, 2009, 12:57 AM	#6
Willy Mo MM Fanatic 2002 Mustang GT Join Date: Sep 2008 Location: MO Posts: 4,334 Blog Entries: 1 iTrader: 1 reviews	are you talkinaboutthe kit at ddperformance.com? __________________

September 14th, 2009, 08:32 AM	#7
scp616 Regular 2002 Mustang GT Join Date: Mar 2009 Location: SC Posts: 326 iTrader: 0 reviews	Yeah that's it I'll try to find the link to that technical service bulletin and post it Apparently 2nd and 3rd gear are actually made differently, i'm guessing to accommodate the new syncrhonizers __________________ 02 GT --> long tube headers w/ x pipe and flow masters, throttle body w/ intake plenum, cold air intake, short throw, 255 nitto 555's all around, 373 diff gears, 2 inch lowering kit w/caster camber plates, sony radio working with stock system

September 13th, 2009, 02:23 PM	#2
rtgt06 Newbie 2006 mustang gt 12.28@112 Join Date: Jan 2009 Location: Corpus Christi Texas Posts: 7 iTrader: 0 reviews	I'm looking into "auto gear" right now for my second gear grind problems. I was quoted $400 for the kit I'm getting. Might be worth a look. Don't know if this helps or not but good luck with the fix

September 13th, 2009, 05:05 PM	#4
huggy bear Enthusiast 2001 Mustang GT .23333333 minutes Join Date: Aug 2009 Location: Inbetween a rock and a hard place Posts: 536 iTrader: 0 reviews	Say I were to rebuild my tranny should I take it to a mech or can an average person do it??

September 14th, 2009, 10:17 PM	#8
Willy Mo MM Fanatic 2002 Mustang GT Join Date: Sep 2008 Location: MO Posts: 4,334 Blog Entries: 1 iTrader: 1 reviews	yeah well I plan on buying this kit so i dont have toworry about it ever again. __________________

September 14th, 2009, 10:21 PM	#9
scp616 Regular 2002 Mustang GT Join Date: Mar 2009 Location: SC Posts: 326 iTrader: 0 reviews	Yeah i will definitely do the same when i build my new motor, but i just swapped the fluid today, and it made a huge difference. So now that i don't feel like i'm grenading 2nd gear every time i shift, i'm just going to wait until i pull the motor __________________ 02 GT --> long tube headers w/ x pipe and flow masters, throttle body w/ intake plenum, cold air intake, short throw, 255 nitto 555's all around, 373 diff gears, 2 inch lowering kit w/caster camber plates, sony radio working with stock system

September 14th, 2009, 10:37 PM	#10
Willy Mo MM Fanatic 2002 Mustang GT Join Date: Sep 2008 Location: MO Posts: 4,334 Blog Entries: 1 iTrader: 1 reviews	so you think i should try to change the fluid? cuz third gear isnt to badwhen its cold its when its warm that it really grinds. __________________

September 14th, 2009, 10:50 PM	#11
scp616 Regular 2002 Mustang GT Join Date: Mar 2009 Location: SC Posts: 326 iTrader: 0 reviews	I would, it made a huge difference in my car I never had a problem with third, but i had to avoid 2nd, now i can downshift whenever __________________ 02 GT --> long tube headers w/ x pipe and flow masters, throttle body w/ intake plenum, cold air intake, short throw, 255 nitto 555's all around, 373 diff gears, 2 inch lowering kit w/caster camber plates, sony radio working with stock system

September 14th, 2009, 10:52 PM	#12
Willy Mo MM Fanatic 2002 Mustang GT Join Date: Sep 2008 Location: MO Posts: 4,334 Blog Entries: 1 iTrader: 1 reviews	damn i will change it tomorrow. __________________

September 14th, 2009, 10:53 PM	#13
scp616 Regular 2002 Mustang GT Join Date: Mar 2009 Location: SC Posts: 326 iTrader: 0 reviews	cool man, let me know if it helped __________________ 02 GT --> long tube headers w/ x pipe and flow masters, throttle body w/ intake plenum, cold air intake, short throw, 255 nitto 555's all around, 373 diff gears, 2 inch lowering kit w/caster camber plates, sony radio working with stock system

September 14th, 2009, 10:55 PM	#14
Willy Mo MM Fanatic 2002 Mustang GT Join Date: Sep 2008 Location: MO Posts: 4,334 Blog Entries: 1 iTrader: 1 reviews	will do, but I have a feeling the ol 3650 will be coming out this winter for the rebuild. __________________

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