4.0 swap

[thisfords4u]

Ok, so I'm putting a 4.0 out of a 12/90 explrr into my latest addition 4/90 ranger that was 2.9. So Ive heard about flywheel shims etc. and will the dust shield from between the eng/trans work? the 2.9 or 4.0 shield? I know the wiring should be plug and play. However, the ex was a auto will that comp be ok with the manual. And yes I believe I ve read all the articles in the tech section. Thanks Guys.

 

[voodoochylde]

Not a ranger and not as new but on my '86 BII (when I swapped to the 4.0 M5OD) I had to use the 4.0 dust plate. Go ahead and upgrade your clutch to the 4.0 as the 2.9 clutch will slip sooner. Don't forget to get a new slave, pilot bearing, and throwout bearing to save trouble later on.

Flywheel shims? I never had to shim anything. I used the starter from the 4.0 and got a new 4.0 flywheel. Don't remember shimming anything but maybe someone else can offer more advice.

 

[thisfords4u]

already have new 4.0 everything, and Ive got both dust shields, which to use tho, 4.0 auto or 2.9 auto shield

 

[4.0B2]

i'd say the 4.0.. just see which one lines up. they both should, unless the starter hole is different