Something goofy is up with the trans itself OR the torque converter...
Rewind about 3months ago. My original 215k mile E4OD blew it's front seal (puked fluid everywhere). So I went out and bought a LOW 27k mile E4OD from a '97 PSD truck. Took my original '92's shift pack and MLPS sensor from the old trans and put it onto the '97's. I also installed a B&M Shift Improver while I had the trans apart. Since it was out, I went ahead and bought a new torque converter. Also did U-joint's since it was apart. Get it back together and fill it with Mercon V (100 dollars worth!). Truck shift's fine, a bit hard due to the shift kit but works great. Towed with it a few times and all seemed gravy.
Come up to a few weeks ago, truck developed sorta a "click". ONLY on deceleration/coasting, it felt like something was trying to catch. Fast foward to now and it's developed into a grinding/ratcheting sound.
I've checked the fluid, still full and pink. Temp never goes over 180 degree's, still has all 4 forward gears and reverse, doesn't slip at all, no blinking O/D light, lockup of the torque converter still works.
Whats weird though is if I get back onto the throttle, it goes away. If I two-foot it coming up to a stoplight/stop sign (keep the revs up around 1500 while applying the brakes), it doesn't do it.
I'm VERY lost at what could be the problem.
Rewind about 3months ago. My original 215k mile E4OD blew it's front seal (puked fluid everywhere). So I went out and bought a LOW 27k mile E4OD from a '97 PSD truck. Took my original '92's shift pack and MLPS sensor from the old trans and put it onto the '97's. I also installed a B&M Shift Improver while I had the trans apart. Since it was out, I went ahead and bought a new torque converter. Also did U-joint's since it was apart. Get it back together and fill it with Mercon V (100 dollars worth!). Truck shift's fine, a bit hard due to the shift kit but works great. Towed with it a few times and all seemed gravy.
Come up to a few weeks ago, truck developed sorta a "click". ONLY on deceleration/coasting, it felt like something was trying to catch. Fast foward to now and it's developed into a grinding/ratcheting sound.
I've checked the fluid, still full and pink. Temp never goes over 180 degree's, still has all 4 forward gears and reverse, doesn't slip at all, no blinking O/D light, lockup of the torque converter still works.
Whats weird though is if I get back onto the throttle, it goes away. If I two-foot it coming up to a stoplight/stop sign (keep the revs up around 1500 while applying the brakes), it doesn't do it.
I'm VERY lost at what could be the problem.