I have a 91 f-250 with a 6.9 and zf 5 the problem i am haveing is the tranny wont always go in reveres all other gears are fine. i wonder if there is a shim or something out. the tranny is quite. and if u roll forward a little it goes right in to gear. i am guessin that the teeth on the gear are fine beacuse once you get it in gear it doesnt ever jump out.

 

the sysnicro gear for reverse is going out

 

Joe got it real common on the ZF5.

 

Actually I've heard reverse can be a weakness in the ZF 5 speed.

 

It is usually the sincro they have a kit for it.

 

i know have a zf5 i read all the post on zf5s

 

just double clutch it. i seem to be having a similar problem on mine. thats what i do. if you cant find it, grind it.

 

It will get harder and harder then will start jumping out of gear seems like the kit ford has comes with a new gear.

 

thats what it was got the kit and did it over the weekend works like a new again thanks for the help

 

Thanks for the update.

 

You got the kit from the Ford dealer? And how much was it? Did you tear it apart yourself?

 

i got the kit from a local tranny shop and in all i spent about 350 for it all inculding some bearings and seals for the trans case. i had a friend help that works on semi trans so he had a good idea how to do it worst part of the job was takeing out the tranny other wise pretty easy fix