Technical t10 4 speed strength

iv have a date code 1963 t10 and wondering how much power it can handle.also 1st gear has a couple teeth gone so i gotta get a new gear.woud like to know before i spend money to fix it.thankd all

 

They were tough enough for 1962 -1964 Ford 406 -427s. You be the judge.

 

that sounds good but this one is chev bolt pattern.dont know if it makes a difference

 

They put them behind the 425 HP 409
But they didn't have the sticky tires like they have now.

 

Actually, they weren't; T10 failures were the reason Ford developed the Toploader which was the 'standard' 4-speed behind the '64-up big block Fords. A few T10s may have slipped in early in the year as Ford had early production issues/shortages, but by mid-year the T10 was relegated to small-block use only. They're plenty strong behind most any small block, but any leaned-on big block is capable of grenading one.

The early T10s are also known for popping out of 2nd/3rd gear on deceleration, due to a design flaw in the syncros. This was addressed on the Super T10. I believe it's possible to upgrade the early version to the later design, but not particularly cheaply.

 

I've had several and have never had a failure. I have one behind a 428 in my '56 Ford. I still have the big spline toploader that came behind the 428, but doubt I'll ever need it.

 

On street tires and reasonably sane driving, you'd probably be fine. But the T10 was a known weak link in Ford's Super Stock Program in '62-63, with many failures at the track....

 

I have one behind a blown 350 Chevy but honestly I've never really hammered it through the gears. Aggressive yes, but not really power shifting. It came out of a 389 425A Pontiac and that guy was savage with it. Paid $90 for it, put in a small parts kit, bearings, new synchro rings and gaskets. Never had it pop out of gear.

 

thanks guys.sounds like it will work fine in my hotrod.300hrs early pont,411 gears, 750-16 and 2300 pounds.its got a t86 in it now.change the gears and trans and sould be fun

 

Never lost a standard trans in any car I have ever owned except a 62 Ford with a 375 hp 390 with a T 10 3 in 6 mo Lost 2 running over joints in concrete under power. I don't think they are as strong as a world cl***.

 

From what I remember about 4-speed ratings and torque absolutely none of them would have held up. Muncies and BWs were rated very low in handling torque but were used successfully anyway. My Tex T101 was capable of 750 hp but I know of others using the same behind 2000 hp engines at Bonneville. Go figure.

 

An acquaintance bought a new 64 Galaxie 500, 390 police motor (330 hp). Street tires, it didn't last long, within a year he swapped in a top loader. No problem after that. The car now has a 427 and I believe is still with the second owner. The first owner has been trying to buy it back for years.


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It is just as good as anything else GM, Chrysler, or, Ford built 50 years ago! If any of you are trying to put 500 plus horse power to the ground with sticky tires on at the track trough a 50 year old stock transmission , then you deserve to break it!! Larry

 

I will second the warning about early T10s popping out of 2nd gear under decel. A quick internet search will give you lots of corroborating stories. It's a well known defect. I had a T10 behind a nicely built SBC 400 in a '57 Chevy half ton that worked well, but...it popped out of 2nd gear. I rebuilt it with all new bearings, synchro rings, and a new 2nd gear synchronizer, which "kinda" fixed the problem. I sold the truck shortly thereafter, so I can't comment on the longevity of the fix.

Chris

 

Yep
Had a couple of each, even had a GM T-10 with a Ford high nickel input shaft, now have a new Richmond version Super T-10 for my roadster. They have torque handling specs listed for their various offerings.
Bought a used T-10 in high school for my 57 BelAir and experienced that gear kickout going downhill on the very first test drive, boy was that a rude awakening, I still remember the sound. Was just a kid so had little transmission experience.
Thought something happened to my brand new Hurst Comp Plus "C" shifter.

 

Great thread! I have a 50,000 mile T10 that came out of a 63.5 Sprint in my 64 Falcon wagon. Had it blow out of 2nd and I thought the trans hit the pavement. Was about to go through it- now wondering if I'll be wasting money.


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If it is out of a 1963 Corvette it will have a smaller collar on the input shaft and will need the 421 (last 3 numbers) bellhousing to fit up to the collar. And those are expensive and hard to find.