Alpha tranny

[jmoffatt]

Om my way to work this morning driving down the road fine then she downshifts and immediately goes to slipping, rpm's rise but very little forward pull, downshifted to 3rd and it seemed ok, I pulled into a parking lot and put it in park then back to drive and it seemed to do alright until I tried to accelerate then it did it again this time in 3rd gear also, I nursed it back home and took the day off. So tell me fellas am I looking at a new or rebuilt tranny?

ETA: 122000 miles, no towing off roading around here is logging roads and mud, nothing major.

 

[Traxx]

100-150k is about all I expect out of the 4l60, it's a bit undersized for the weight of the 3. Price is pretty reasonable to have it rebuilt since it is such a common unit.

 

[mjferencak]

The one good thing you got going for you, if you're still in Shreveport, is that PATC is in your town.

 

[jmoffatt]

are they good

 

[RamRod]

one of the best for this trans

third gear has a design flaw and they have a beef up kit for it

 

[SuperBuickGuy]

100-150k is about all I expect out of the 4l60, it's a bit undersized for the weight of the 3. Price is pretty reasonable to have it rebuilt since it is such a common unit.

shush you. Mine has 155,000 on it and it's operating fine - and I'm far less nice to mine, it's best trick was hauling a diesel suburban on a trailer at 80 mph from Portland to Seattle. That said, I do change the trans fluid when it starts to smell, not at 'recommended' miles (which usually means I do it around 35,000 miles between changes).

If the OP's transmission is slipping, it will throw a code....

 

[Kinson33]

Also...make sure you have the rear main seal replaced while its out, apparently there is an upgraded version for this as well.

Previous owner replaced the tranny on mine 8K miles before I bought it from him but didn't bother to replace the seal. It was dry as a bone under there when I looked at it before purchasing, before and after a lengthy test drive. Now I'm in the process of checking levels everyday to see the severity of the leak...

shush you. Mine has 155,000 on it and it's operating fine - and I'm far less nice to mine, it's best trick was hauling a diesel suburban on a trailer at 80 mph from Portland to Seattle. That said, I do change the trans fluid when it starts to smell, not at 'recommended' miles (which usually means I do it around 35,000 miles between changes).

If the OP's transmission is slipping, it will throw a code....

You never know... my parents silverado is still rockin at 200k and they tow with it regularly. Fingers crossed for you!