Isphius

Hey, Looking at an 82 z28, has a broken reverse and worn synchros, It is the 4 speed with the reverse on the 1st/2nd side. I was just wondering, What trans would be a bolt in? Would a t5 work with the clutch disk and clutch pedal? Or what other 4 speeds would be a direct bolt in? I have a super t10 from an 81 z28, but im not sure if the tailshaft even unbolts from this to use the torque arm rear? Let me know!

onebad82z

iTrader: (7)

Up and left to get into reverse? That would be the Borg Warner Super T10 for '82. There really is no "bolt in" trans to replace the 4 speed, well except for another T10 4 speed from another '82. It is a one year only trans. The T10 from the '81 will not work as the tailshaft does not have the torque arm mount bosses on it, and the tailshaft housing cannot be swapped between the two. The '81 T10 has a larger output shaft like a TH400, whereas the '82 T10 has the smaller output like a TH350.

Options are to get that one rebuilt, DIY, or look into a more involved swap than just a bolt in. I swapped out my original '82 ST10 for a '99 T56. There was a decent amount of work to make it play nice.
----------
Missed this, no probably not. AFAIK T5's are a 10 spline trans and the ST10 is a 26 spline trans. So no on the clutch disk, but the pedals will work.

sofakingdom

iTrader: (1)

V8 T-5s have the 26-spline clutch gear.

The only things you'd have to do to put a T-5 with hydraulic clutch into your 82 are: change the pedal assembly to 84-up; enlarge the cluch pedal push rod hole a little bit, and drill 2 bolt holes, for the master cyl; get a 83-up crossmember, and add the 2 holes for it, that are farther back on the "frame"; and shorten the drive shaft by about 3-4" or get a 83-up one. Piece of cake. You could use a mechanical linkage system, 83 only, with your existing pedal assembly, but those are hard to find these days, whereas the hydraulic pedal assemblies are EVERYWHERE. The BH, clutch fork, and trans will bolt right in, given those mods to the car.

Or, you can just fix your 4-speed.

The synchros most likely aren't "worn"; they almost never are. Back in the late 70s and through the 80s, my little bro and I had a lively business going, rebuilding 4-speeds; probably did at least 50 of them. I don't recall more than a handful that ACTUALLY had bad individual blocker rings, let alone more than one per trans, without something else that had killed them. They bascially DON'T wear. If the trans grinds going into the gears, it's a clutch problem 99.9999% of the time. The rest of the time, it's a clutch problem.

Sonix

iTrader: (1)

I'm pretty sure T5's are also 26 splines.
Some of the older T10s or muncies are 10 splines I think.

Jproz1167

iTrader: (3)

To add a later crossmember to the car isn't as easy as just getting a later model mount and bolting it in. Because there are no inner bolts in the holes to thread to, I just welded metal onto the backside off my 200 trans mount to extend it to get a 5 speed in my 82.

But aside from that everything else bolted up.

Isphius

Well its a car for sale, didnt actually buy it yet. I dont really want to change anything just yet, So is it worth it to get the super t10 rebuilt? or buy another rebuilt one? I found 2 for sale on here and a few elsewhere. Not too expensive. I dont know that the synchros are bad thats just what the guy said. I didnt drive the car yet. I told him i want to find out how hard it would be to get the trans fixed first. BTW, its an indy 500 model 82 z28, if thats important. It has a jasper 350 in it with a few performance parts. He said it was "worked" but sounds like it just has headers and a dual exhaust. Def didnt sound like any kind of performance cam.

sofakingdom

iTrader: (1)

Ah, so this is a used car salesman story....

That's ALOT different from some kind of actual observation of reality.

Sounds like it needs a clutch job, BAD. That accounts for "broken reverse" (can't get it to go into it because it grinds) and "bad synchros" (all the gears grind).

I'd BET MONEY that there's nothing wrong with the transmission.

See my signature for helpful advice in interpreting car seller lies.

Isphius

Thats a good point. It is a private seller, but he was kinda pushy about the "worked motor" and how it will spin wheels in all 4 gears(or, how it used to...). I didnt actually drive the car because it has no plates etc, and i owe the DMV money so i wasnt gona try it. When i owe them money, everything tends to go wrong.

EndlessSummer85

Buy a richmond super t-10 out of jegs it's like 1500-1700 bucks and call it a day.