Joe's Bronco Page - Installing a ZF 5 speed overdrive transmission from an '89 F250. Definitely not a swap for the weak! Requires a custom adaptor, hydraulic clutch, new drive shafts, etc. An interesting option to the expensive NV4500 swap. Includes description, price list and photos - (Hits:1596, Details)
http://pages.prodigy.net/rjlougee/ZF.html
ClassicBroncos.com - ZF 5 speed transmission - A quick guide to help you decide if the ZF is for you. Includes info like modifications needed, approximate costs, gear ratio chart, pros and cons, donor vehicles, etc. - (Hits:1144, Details)
http://classicbroncos.com/tranny-zf.shtml
ClassicBroncos.com - Budget ZF Transmission``Using the cheaper 2wd version of this popular 5 speed manual tranny - (Hits:298, Details)