I'm getting results for both Chevy and Ford. Just trying to narrow it down so when I go to the scrap yard I know what to look for. (IF I do decide to go this route! My tranny is bad, so it's a good possibility. I think I'd rather use the 500 because of the lower 1st, 2nd, 3rd gears..)

 

well i imagine any 5 speed mustang with 2.73's is gonna have the TKO 500 for the extra torque multiplication.

 

From what I've learned so far, many of the Mustangs had the TR-3550 which wasn't as strong, so it was changed to the TKO-500

 

I found a four-speed transmission from a 1982 Ford Mustang GT that had a 5.0 H/O, but it doesn't look quite the same in the pic as the TKO... what do you think?

 

is there even such a thing as a 4 speed TKO?

 

Not a TKO, not sure what it is so I posted the pic

 

That's known as an SROD (single-rail overdrive). It was a stopgap solution to put OD into some cars in the late 70's and early 80's. Sturdy enough, but crap ratios. You will not like this in a Jag.

Except for one very limited edition Mustang Cobra, you won't find a TKO in a production car.

Check out Keisler Engineering and look at the RS transmissions.

 

Tremec changed a lot of designations for marketing purposes but the 3550 and the TKO are the essentially the same transmissions. Polished gears, carbon blocker rings, and some improved bearings are the big differences between those and the current TKO 500/600. Mustangs (except for the rare 1993 351 Cobra model) never used a TKO.

On V8 Mustangs, the T5 was superseded by the stronger T45 (96-01), then by the even stronger TR3650 (similar internals to a T56). The latest Mustangs use a Getrag MT-82.

All V8 Mustang transmissions after the T5 had integral bellhousings making them tough to adapt to anything else. However, Keisler Engineering has an upgraded version of the T-45 design that uses a separate bell and is easily adapted.

 

Nope. Mine is a Richmond ROD 6-speed and a 5.3. But, you're right. It's not yet running

 

all i remembered was that it was a Double O trans.

 

A friend of mine has 2 of the T5 trannys he's willing to sell me for $200 each. I haven't looked at them yet and don't know what they're out of. Not sure if they have intergraded bells or not, but he said he's used those type T5's behind some very high horse/torque engines without problems, as long as it isn't used for drag racing.
Any thoughts? I'd really like some input from the forum!

 

the T-5 should have a removable bellhousing.

also, theyre pretty bad about not holding up to the torque. find out what they came out of, because the ones out of the 6 cylinder F bodies are notoriously bad.

im planning on going this route eventually with a 3.8L camaro/firebird T-5, but im gonna have it built first.

 

Is your V6 running yet M90?

 

no. ive been bogged down with the rerouting of the oil pickup tube. was rummaging through an outofbusiness sale at a mom and pop hardware store tonight and found the bender i needed for 80% off. so got that for 2 bucks and a harmonic balancer puller they had for $4. WIN!

just need to get the new tube bent, brazed, and the pan welded back up.


not to thread jack.

 

I'm hoping the guy who has them knows what they came out of. I'm not sure there are any markings easily visible to distinguish what they are from.

 

Look for a metal tag. There will be a number 1352-xxx that will id which t5 it is.

 

Actually, part of the beauty of the Richmond 6-speed is that it's NOT a double overdrive transmission. 5th gear is 1:1, and mine is geared so that 6th is 0.86:1

From a performance standpoint, I just don't see any reason to have overdrive in both 5th and 6th, like the Tremecs have. Double overdrive is a feature aimed at fuel economy, and face it...if anyone bought, or modified their V-12 powered XJS for fuel economy purposes, they need to go sit in a corner till they get their mind right

 

Is there a particular range in the last 3 digits I should be looking for in order to avoid the weaker, 6 cylinder ones?

 

You want to avoid the older Non-world class transmission built prior to 1985. They are good transmissions, but not as strong and many improvements were made to make them better.

The 4 cyl trans is weaker, but mostly because of the steep first gear. That makes the torque capacity lower. The V6 trans used in the 94-2003 Mustang was essentially the same trans as used on the 1993 V8, but with a longer input shaft.

Torque capacity on either 4-cyl or V6 is probably adequate for a v12 Jag. Even the 4cyl version is usable on a daily driver. Just don't dump the clutch and power shift it at every opportunity. A shifter with positive stops will prevent bending the shift forks if you are a ham-fisted driver.

There's a pretty good list at Identification Key to Borg-Warner T5 transmission ID Tags.

 

nope not a ham fist type driver, I started driving standard in early 70's on the farm. some of those old farm trucks really required a precise but delicate hand or you'd miss a gear on the hill and you'd have to start over.

Anyway the guy said this transmission came out of a Turbo Coupe, a Thunderbird I believe. I didn't know they even had turbos in Thunderbirds, so I might be mistaken.