It's easy to swap a '91 FSB over to a ZF 2wd -if- you got a donor truck. :)
No kidding on that. :) A >8500# '90 F250 is what I bought.
Doggonit I deleted the stock-E4od-FSB-L-shaped-crossmember pictures! :/
Took 'em for a guy on FTF website forum. ;)
You got a 2wd there or a sorry-assed "one wheel wonder"?
Even my half wornout 8.8" LSD still works good enough for now.
Lots of guys have put limited slip in their rear axle and found they hardly
ever used the 4wd after that.
Even done knowed that before late Nov of '74,
...my '75 F150's got Traction Lok. ;)
Check your rear axle tag...
But also your VIN plate, AXLE = H9 (has a letter) means it's an LSD...
x2 on the title.
<---------------and fill out your stuff.
I got a "like new" 1356E just sittin' here, but you gotta be close to get it.
It needs to be swapped to manual because the ATF messed up the wire
insulation and there's no use fixing such a silly idea as an electric transfer
Alvin in AZ