axle strength swap question

[z210]

here's the dilemai have a 74 datsun b210 that will be getting a ca18det swap. this engine will put out about 200 hp. it has a solid rear axle. the current axle has trouble keeping up with the stock 75hp engine currently in the car. i'm on my second rear axle. i need an axle that can at least hold a good 220 to 230 max power. the axle i swap in there has to be as close to 4:40 to 1 gears as possible, i have acces to the following rear ends;------------------------------------------------------------------------------------------------------------81 celica supra, the car is an automatic, 6cyl, the rear already comes with disc brakes, i really like this axle since it has disc brakes already, however i don't know what gears are in the pumpkin. ----------------------------------------------------------------------------------------82 celica, 22r engine, 5sp, drum brakes--------------------------------------------------------------------------------------------------------------------------------------------------------------------80 truck, 5 lug, drum brakes, i like this one because it has a 4;10 gear ratio.----------------85 truck , 5 lug, drum brakes--------------------------------------------------------------------i'm leaning more towards the 81 celica rear end, which do you think will handle more power? are they all the same? do the carriers interchange? any advice would be appreciated. i know this is a yota forum, but i figuere you guys would know best about yota rear ends. i also have a 79 yota 2wd pick up that's been in my family since new.

[stepho]

I used to have a Datto 1200 race car.
It had the heavy duty Ute rear end with 200SX diff and had no problems holding 150HP.

The '81 Supra rear end has a 7.5" F series diff which will have no problems with 200HP.
Stud pattern is the same as the Datto.
Ratio is 1:3.909
You will probably need to shorten the axles.
The diff is also used in the Hilux/Pick-up/Tacoma, so other ratios and LSD are easily available at 4WD shops.

The '82 Celica has a 6.7" T series rear end.
It will hold 200HP for a while but will eventually fail.
LSD is not easy to find.
I've got one in my '77 liftback holding 160HP with no drama.
Not recommended.

Not sure about truck details but I think it is a 7.5" F series diff.

Drift through my website for diff options:
http://members.iinet.net.au/~stepho/diff.htm
http://members.iinet.net.au/~stepho/celprod.htm

In general,
- any F series diff will interchange with any other F series diff,
- any T series diff will interchange with any other T series diff,
- T series diffs do not interchange with F series diffs.

You might also consider a Skyline diff (circa 1985?).
One side is shorter than the other.
Make the long side the same length as the short side and it should be perfect for a B210.
This has been used for first generation Celicas.

- Stepho