Have you seen this before?

[rgullett83]

I built this trans in may of 09. Truck had about 3100 mi when built(has 21000 now), had ran hot a couple weeks ago after a couple hour highway drive, and then threw a 2nd gear ratio incorrect code saturday night pulled it out tonight and this is what I found.

 

[rgullett83]

very surprised, but all the clutches look just as they did when I built it.

 

[Mike L.]

You cut the C4 piston on install. Remember that greasing the surface that the piston rides on is more important than greasing the piston upon install. Grease them both and if it doesn't fell right on install, pull it out and check it.

 

[rgullett83]

I agree with you mike, but I really thought this would have shown up before now, its been a year and a half and about 18000 miles since built, but I am not afraid to admit to fault neither.

 

[Mike L.]

I have seen this happen twice. Both times it took a year or longer to act up. Maybe a defective piston?

 

[rgullett83]

This was a Suncoast kit, the clutches look good, so I am not even gonna attempt to get them to cover it. I just gonna order a piston gaskets and filters from Merchant.

 

[rgullett83]

Got parts this evening, cleaned everything up, and put it back together all is well again. Mike thanks for the insight, I made sure to use transgel on the piston bore, and lubed the piston as usual.

 

[rgullett83]

update: No slippage issues, but still gets warm on the highway. The truck was drove to indianapolis the other day(about a 2 hour drive from here), with ambient temps of 45, and the temp climbed to 190. My built trans in my 07 only got this hot towing in the summer any ideas Or am just lookin into it too much?