i have a 1988 pickup with the 22 re, 5 sp, 4wd .. my transmission is making a whining/suqealing noise when im in 3rd and 5th gears when im on the gas pedal .. when i take my foot off the gas pedeal the noise dissapears .. also, its perfectly smooth and quiet in 2nd and 4th gears .. there is no grinding when im shifting , it shifts perfectly.. any input please ?? thanks ..

 

The noise you hear is probably your front bearing on the input shaft of your 5-sp. transmission. Same thing happened to my 88 truck. Fourth is 1:1 so you don't get any noise. Fifth is probably the noisiest. Most likely you will eventually need a new transmission. I put in a heavy-duty Marlin transmission and clutch recently. It's great. No more f----ing noise!

Give Marlin a call. You'll be happy you did.

 

I noticed you have a Downey header on your 88. I just got an 88 myself. How do you like the header and did you have any issues getting it to fit? I noticed some kind of bar going across the top of my header. Can that be removed to use an aftermarket header?