Yeah the toyota box definately has a slicker shift action than the 60 series 4 speed we were using, and the extra ratio means I don't have to swap the diff centre between different tracks, now i just leave the 4.88 in.

And how do you find the new box performs?? I reckon it knocked half a second off my lap times simply due to the speed at which I can change gears. The ratios are nearly identical.

We chopped the bell housing part off the front of the old 56 series behind where the bearings locate, milled it down nice and flat, and did the same with the back part (the plate section) of a T-50 bell housing, made a sleeve to centralise it all, and Mig welded them together. Had to bore out the center sleeve for the datsun release bearing and turn down the T-50's input shaft seal housing. Other than that everything remained pretty much the same. Oh, the spigot bush now locates in the flywheel instead of the crank. I'll try and put up some photos when the box is out in the next couple of months.

I also looked at the BW T-5 box. There are millions of them. The V8's had higher first and maybe second gears. I picked one up one day and was shocked at the weight. I didn't seem that much heavier than a toyota T50. But I didn't have scales on me so I don't know its exact weight. Aftermarket rebuild kits and gearsets are available cheap and easy. The same box was used in some american 'sports' cars with closer ratios, so might be available cheaply over there. Tunnel size is the major problem and you must decide early if you want to avoid replacing your tunnel.

I have a Toyota W50 box sitting in my garage too. They are a great box, but wouldn't fit in my KB10 tunnel due to width. 1200 's might be a different story.

Finally, I tried an 63 series 5-speed from a bluebird in my 1000 tunnel. I didn't have the old g/box mounts removed at the time, but it seemed to fit according to my somewhat uncalibrated eyeball.

For something different, series 1,2 and 3 RX7's have different 5-speeds. At least one of them has a removable bellhousing. Unfortunately, mazda boxes are pricey.

Yeah, I did a T50 convo using an A-series auto bellhousing, except I did it different t you TnPshow. I cut the back plate off the bellhousing completely and welded on a new black one, then milled it true to the front. Next I machined the complicated but necessary Toyota pattern onto the blank plate. This job is not for an amateur, but I was lucky to be working at a place with several CNC mills with friendly operators - so it only cost me my time. The overall length of the new bellhousing was about 150mm from memory.

If you are doing the T50 convo, some important points to note are: there are several different length versions of this box depending on the gearstick position only. You can see from TnPshow's pics that the gearstick protrudes from a small casting. His appears to be the Corolla T18 version (same as mine). The celica box stick position is much further foward. Although I haven't tried, i believe these are interchangable. Also, one of the bearings protruding out the front of the short-box has different O.D.'s on different models. This means that the bellhousings are not interchangable between early and late T50's, even though every other dimension is the same (apart from the gearstick). Heaps of info is available in the Dellow catalog, which you can download from their website.

Mine went in just like yours. We removed the old gearbox mounts and also extended the gearstick hole in the floor pan backwards around 25mm (remember I used the long box). My bellhousing would have been a fair bit shorter than yours TnPshow. My T50 input shaft inserts 8mm into the standard crankshaft spigot bearing. I purchased a new Excedy ceramic button clutch to suit a toyota. Just go to your fav clutch shop and get a quality clutch plate to suit a toyota of the T50 vintage in 180mm diameter with the right number of splines. The splined centre is the only difference to an A-series datto clutch plate (amazing huh!).

As normal, putting the race car back together occurs one or two days before a race, so no photos were taken at the time, and we've had no trouble with it since. I'll try get a photo soon though.

I'm about to tackle this problem again on my road car. This time I'm using a short Celica T50 box, and I'm going to start with the Toyota bellhousing and make a new front flange to suit an A-series, including a clutch cable mount way down underneath.

Haudi folks! I was looking for T50 boxes only to find there was none avail and people told me that they r usually in bad shape.

So I bought W50 (celica) instead!




This box should be able to take more than 200hp (I guess enough of torque too...)

The current plan is to make a flange and cut the bellhousing from datto (manual)box and weld/bolt them together. I will report u how it goes!

cheers

Tuukka

No problemo TnPshow! thanks for quick answer

This conversion sounds definitely something that I have to do

I was talking about that clutch thing with one dude who made a similar conversion on his Subaru and he told me to measure accurately that there will be enough of space for the clutch. Or in this case input shaft doesn't stick out far enough...

How did u connect that spacer plate on the bellhousing? Did u weld and alloy plate on the bellhousing.

This forum is amazing! Thank u guys

Any chance of getting scan or something of that spacer plate that I could make similar? (or thicker...)

...

Quote:

Only about 20mm Tyrie,but as the car is so low and runs back to a 1200
ute diff,to get it up high enough into the tunnel to keep the tailshaft straight the original tunnel required the chop,not that it was a big deal with the right gear.Is that section of the 1K ute floor the same as the sedan?

I imagine for a road car you could probably mount it on a bit of an angle and let the uni's do a bit more work if you have the ground clearance available as a legal rego'd car.Cheers

Quote:I keep hearing that a 411 wagon rear axle assembly practically bolts right into a 1200. Is that not true?

Those concentric clutches are the trick setup!

Quote:Hmmm... maybe we can get them cheap at the wreckers?