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This is a REV servo from an 80E I built back in april . The customer just now installed, when he did he found he had no reverse but went and drove it arround and when he came back he had reverse even at WOT it held no issues. Drove and shifted perfectly in all forward gears, Parks truck , Lets cool down check fluid all good goes to drive it again NO REVERSE so he repeats what he did before but this time no reverse still.
Brought to me I opened and found this,
Any ideas I have not run onto this before,
Odd pressure spike?
Weak or not visually damaged servo that just busted?
I ordered an adaptacase billet one to replace it. But still odd, This is not a HI perf unit just a 3500 series truck with a standard rebuild . AFL. TCC VALVE.
Something else I should look at or for ?
__________________ Frank formerly of Performabuilt, Now just me, What can I build for you today? Call or message me. Click sig pic for my facebook
Last edited by FranksCustomTrans; Today at 03:06 PM.
Yes but this happened right after start up its very weird , something I have not actually seen , BUT apparently it happens as the after market does make a billet replacement for it.
I have built these to run max line all the time full manual in 1200 hp trucks and never seen this, I am assuming just weaker from age, maybe an internal crack I could not see when i built it.
Just odd to me .
__________________ Frank formerly of Performabuilt, Now just me, What can I build for you today? Call or message me. Click sig pic for my facebook
Today, 02:33 PM
Ok my turn to ask something 4l80e 
