W 55 Boxes- Out of what?

[J-M kujala]

cressida diesel have also w55 late 70---> early 80 model

[JustCallMeOrlando]

And I also think a late model lexus might have come with a steel plate W55 (Don't quote me on that one!).

IS300. Your mind isn't playing tricks,

[CrUZida]

How much strength difference is there between a W55, W57 and W58??

None.
The strength difference is noted by the steel sandwich plate, not the ratios.

[wilbo666]

IS300. Your mind isn't playing tricks,

Yah thought so, in fact I actually have one!

None.
The strength difference is noted by the steel sandwich plate, not the ratios.

This is thought to be truth. (I do wonder if perhaps the different inputshaft:layshaft tooth ratio on the W55 would make it slightly stronger / weaker tho...)

Anyway I had a steel plate W55 behind my 1JZ for the first number of months, then when I had to drop the box to play with the clutch I swapped in an alloy plate W58 (for the 5th gear ratio).

I've not broken it yet (and I've broken a diff in that time).

Cheers
Wilbo

[MRMOPARMAN]

i was just checking this last night actually. i figured a w57 would be a better starting point for a 4agte circuit car.

anyways back to the point.. heres a list of the ratios that the toyman posted in faq

http://www.toymods.net/forums/showthread.php?t=353

[o_man_ra23]

Hmm... Apart from 5th, the W55 may actually have better ratios for my SA23 project... good to know. +rep for posting the link mrmoparman