The braking problem is on my 1985 D250 with power brakes.

When first stopping the truck after it sit's all night they like to throw you into the windshield or like they lock up and this only happens the firs 3-5 times using the brakes and then all is normal till the truck sit's say over night.

I did replace the front brake hoses but no change.

So need some ideas on what to check on.

Thanks for any help Bill