Drivetrain Clang

[darenofears]

sorry about the furd question but
When shifting from drive to reverse on a f250 custom duty it clangs horribly

it is not driven much
it is used only to haul firewood by my 84 year old great uncle
has 4.9 litre and a dump bed

does not get moved much at all

 

[BigCountryx]

Got a Locker?

 

[echos]

u-joint?

 

[gmtech954]

tranny mount?

 

[SUPER'BURB]

As stated above I would check u-joints first. Tranny mount second. I have a 3/4 ton GMC that makes that sound with the front drive shaft out.