XF T5's and E-series box's

[EDXR6T]

hi all

time to set some thing's strait

ok well i'v heard from some ppl that EB2 box's are stronger and have a longer first gear ther for less strain on the box

and EA T5's ante as strong due to they'r short first gear ther for more strain on the box (housing) and thay'r more prone to craking

but i was told that XF thru to EL are the same :P
beside's the EL shifter stork
i was deffending the point that it change'd EB2 onward's

but he was very reluctant and sure thay are the same:P

so some clarification would b great
cheer's fella's