What's the difference between transmission 87218 and 88257

It has the 2 plugs on side not 3. The guy says it's 3 speed tho. I bought a new 2 speed to go in it because I thought it was a 2 speed. It was $25 with shipping. I'll upgrade to the 3 speed later on. Or maybe I can fix the one I have if it is a 3 speed. I didn't pay much attention to that was making sure nothing was broken.

It could be he bought a three speed conversion and put it in a 2 speed case. Is there three gears on the shaft that goes to the spur gear if so should be three speed.

I'm fairly positive there were 3. So I now will have a 2 speed. No biggie to me tho. I'll be happy to have a solid tranny again. I'll probably upgrade later to the 3 speed kit. What would break in the tranny when you lock up the brakes and flip the truck? Maybe I can put my 3 speed into the new tranny?

One of the drive gears id say without seeing it apart.

Yeah I'm sure something is pretty messed up. When I apply the brakes it still grinds but only when the brake is engaged lightly. The spur gear has like an 1/8-1/4" play when I wiggle it. I'm not going to mess around with it. I'll it just wait for the new one. Just anxiously waiting to bash the thing!! I really appreciate all the help from you guys. Ended up being fairly easy seeing most parts are interchangeable.

sounds to me as if the problem lies in one of the differentials.....

Yeah I'm sure something is pretty messed up. When I apply the brakes it still grinds but only when the brake is engaged lightly. I'm not going to mess around with it. I'll it just wait for the new one. Just anxiously waiting to bash the thing!! I really appreciate all the help from you guys I'd be lost trying to figure out what I needed. Ended up being fairly easy seeing most parts are interchangeable.

Jam Racing 1 said:

sounds to me as if the problem lies in one of the differentials.....

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I did open them up and turn the tires and they both sound fine. That doesn't mean it can't be it just really sounds like it's in the tranny. If not I'll find out tomorrow when I get the new one.

Here's the gears from the transmission that came with the truck. They're a little sloppy but nothing broken or chipped. I put my reverse module into the new one and it still makes a grinding noise when the brakes are lightly engaged. I can't believe it's supposed to do that when the brakes are applied. That would be something in my reverse module seeing that it's a new transmission correct? Other than that it rolls very smooth now. Really bummed it's still doing that tho...

That's a two speed. I never had reverse, so not sure what it looks like inside with reverse in it.

This is what the top/input gear would look like if it was 3-speed:


And the 3-speed shifting gears. Well, most of them. I had a crew in my trans and it decimated 1st gear since it was plastic. Chipped one of the teeth in the top gear too if you look close.


Stupid screw...


I got annoyed having to take the top of the trans off to change gearing from winter to summer gearing. I ran lower gearing in the winter with a junky motor I didn't care about. Was a pain fussing with shift points when your fingers were numb.

That's a shitty deal!! I forgot a bearing when I put the new transmission in lol it fell out while I was putting the reverse in. Was wondering why my spur gear was moving soo much lol had everything all back together. That's ok i can tear it apart and put it back together faster next time lol.