TH400 to 4L80E swap and 1227747 to 16197427 swap

[MxRace75]

Thanks for the info.

Does a 98 4l80e have the same wiring connector as say a 95??

[fastacton]

Yep, same connector for a '98.

[MxRace75]

K I'll look for a 98-99 core. Should be a good place to start.

[billygraves]

.................

[1project2many]

Watch the aftermarket fittings... they're junk. Local GM dealer is selling someone else's fittings in little baggies with GM number on them. :(

There's a tool to make the trans quick connect fittings using a hydraulic flaring tool. This means you might be able to find a guy that can form ends for you. My local trans guy found 3/8" inverted flare adapter fittings in someone else's application, iow not GM. Possibly AM General for "real" Humvee?? I may have part numbers around. We were using them in buses until tool became available for quick connect ends. BTW, billygraves, do you know a "real" name for those fittings? We also know to use steel lines here. When high temp paint burns off of cooler lines you know things are hot.

Old school bus is a great source for 4L80E trans.

[MxRace75]

I have access to a hydraulic flaring tool for 1/4 thru 1/2 stainless line. We use Parker fittings on the Trans side. I'll probably going the custom steel line all the way to the cooler. Not sure what cooler I'll put on it yet.

[billygraves]

..............

[EDZIP]

FYI only..had this site bookmarked:

How to Control a 4l80E with a GM 16197427 ECM

http://mattw.dyndns.org/4L80E/