Drivetrain T5 - lost 2nd gear, then lost 3rd?

90blacknight

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Apr 11, 2006
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Hi all.
I was cruising in stop and go traffic and all of a sudden my T5 starts popping out of 2nd gear. I wasn’t hammering it, then a couple of minutes later it starts popping out of 3rd. If I try to shift into 2nd now it starts grinding and pops out, and still popping out of 3rd. What’s going on? Losing one gear is one thing but losing two like this?
 
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Yep, Toast...no butter, honey or jelly to put on it either...



A Tremec 3550/TKO/TKO 500/TKO 600 is a completely different transmission from a T5. Strong and almost bulletproof unless you run them without proper lubricant or full throttle shift without the clutch.

A Tremec T5 is still the same T5 that is prone to self destruction when used in a street/strip or racing environment

3.5.1.1.jpg

T5, all versions used in 5.0 Mustangs

3.5.1.2.jpg

Tremec 3550/TKO /TKO500/TKO600 AFTERMARKET replacement for T5 - handles racing environments with ease

See http://www.ttcautomotive.com/English/products/tremec.asp for more information - check out the "Light Duty" group, since TTC makes monster transmissions for big trucks as well as passenger cars.


T5 identifier information.

On the tail shaft of the transmission, there will be a stamped aluminum tag. The tag will have a number on it that you can cross reference to the chart below. There is no other way to find out what type of T5 it is without disassembling it. All the rest of the numbers on the outside of the T5 case are part numbers which are not unique to any particular T5 model.

Remember that 94 - 97 T5's have a longer input shaft (about 11/16” longer) and can only be used with a 94-95 bell housing unless you modify or replace the input shaft.

T5's used with a 4 cylinder have a 3.93 first gear, reduced torque ratings and an input shaft pilot diameter that is smaller that the T5 used for V6 & V8 engines. The pilot diameter is .59" compared to the .668" used on V6 & V8 T5's. It requires a different pilot bearing to be used with a V6 or V8. The pilot bearing you need is for a Ford Ranger diesel from AutoZone part #14672


t5-identifier-gif.gif


I don't know how you feel about the DYI thing when it comes to gears, some people don't like the idea of working on transmissions. If the DYI transmission fix idea isn't something that you would rather leave to someone else, here are some resources:

See http://www.ttcautomotive.com/English/onlineorder/product.asp to download a FREE service manual for T5 or Tremec 3550/TKO
You will need the Adobe Acrobat viewer which is also a free download – http://get.adobe.com/reader/

See http://www.hanlonmotorsports.com/ or http://www.ddperformance.com for parts

A T5 rebuild kit with syncros, bearings and other small parts costs about $160-$260. It does not include any gears or shafts.

http://www.hanlonmotorsports.com/ also has a video on how to rebuild your T5 or Tremec. It costs about $20, and is worth every penny of it.

I did a Tremec 3550 rebuild, and it wasn't that difficult. The video was an immense help, and I would recommend viewing it. At $20, it will give you an opportunity to look and decide for yourself if you think that it is something you want to try to do.


T5 Shim kits – best product I have seen in a while… http://www.5speeds.com/t5/shims.html
“The Peel ‘n Place T5 World Class shim kit makes shimming T5 counter gear and main drive gears very easy.”
 
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Hi all.
I was cruising in stop and go traffic and all of a sudden my T5 starts popping out of 2nd gear. I wasn’t hammering it, then a couple of minutes later it starts popping out of 3rd. If I try to shift into 2nd now it starts grinding and pops out, and still popping out of 3rd. What’s going on? Losing one gear is one thing but losing two like this?

That is odd.

They use two different gears and syncros that are separate. They also use two different shift forks.

Do you have an aftermarket shifter? If so, check shift stop settings and makes sure they aren't preventing full engagement of the gear.
 
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That sucks. Unfortunately at this point, you'll need to pull the top cover and inspect to understand the cause.

There is a chance something in the shifter rail setup failed.
 
Yep. And I wouldn't subject it to any more movement until you find out. No need to make it worse and break something else in there.


EDIT: fixed my 1,000,000 typo!!! Between me and the phone changing words "for me".....:mad::mad::mad:
 
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The reality of owing a t5 is that if it gets messed up in any way, it has to come out.
And if it has to come out, it should be rebuilt with at least a small parts rebuild.
Missing a gear completely sounds pretty bad to me, so i'd expect some hard parts (gears/shafts), which are going to be expensive.
I blew up 2 t5's, the stock one and a t5z.
Not sure of your mods, but i'd be looking at a Gforce, astro or tremec.
If the car is stock, repair the existing trans (that's about the only way I run it original).
 
Id go to junkyard get a t5 and then watch Eric the car guys YouTube video,Paul Cangialosi does the rebuild,Paul owns 5 speeds .com he has 30 + years rebuilding t5 s,I'm currently rebuilding a core a got for 50 bux.It's good to have another skill set.
 
Id go to junkyard get a t5 and then watch Eric the car guys YouTube video,Paul Cangialosi does the rebuild,Paul owns 5 speeds .com he has 30 + years rebuilding t5 s,I'm currently rebuilding a core a got for 50 bux.It's good to have another skill set.
Those are by far the best T5 rebuild vids I've ever seen. I'd give anything to have the same for rebuilding a 5.0L engine.
 
Glad you liked em.Now I think fordstrokers.com has some on the 5.0 rebuild but I hadn't seen them as you have to pay for em.I'll let you know how I do when my rebuild on the t5 is done.
 
Glad you liked em.Now I think fordstrokers.com has some on the 5.0 rebuild but I hadn't seen them as you have to pay for em.I'll let you know how I do when my rebuild on the t5 is done.
I watched them back when they came out...lol....I'm just glad you mentioned them because I think all mustang guys could benefit from watching them. Even if you aren't rebuilding it's good info to see.
 
I agree.here some pics of trans in parts.,and my daily..
 

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