need transmission?

[bronco2]

I have a 87 b2 4x4 automatic that I am not sure if it needs a tranie. It starts of in D great until it gets to about 20-25 then I have to put it in 2 to get up to about 35 and that is where it stays riding low. My reverse works fine. any help will do

[vabronconut]

from what little info you gave, i would suspect the valve body is bad. if each gear holds but will not shift it sounds like the fluid is not porting to slide the drives. a suggestion would be try changine the filter and fluid, if that doesnt work then rebuild the valve body

[bronco2]

Thank you Vabronconut, I have already changed the fluid and filter, and with your suggestion I will try the valve body. Thank you again

[vabronconut]

Thank you Vabronconut, I have already changed the fluid and filter, and with your suggestion I will try the valve body. Thank you again

no problem let me know how it turns out. be careful taking the body apart ! there are a couple check balls that will drop out

[bronco2]

After we got in there with the valve body it was just easier to change the transmission. So that is what we did. Thank you again.