I would really like a turbo 400 in my truck

[jakewalter]

I have a 85 K20 that I built up to haul our 3500 pound pickup camper.

It currently has a pretty healthy big block that I built for torque.

The transmission is a 700R4 and a 203 transfer case.

While on vacation a couple of weeks ago the transmission started slipping and I lost reverse.

I never use the overdrive and as for mileage I threw my pencil away a long time ago.

Other than a TH400 out of a 4wd what else would I need?

I would really appreciate any input that you guys could share with me.

 

[nvrenuf]

You need a 4wd th400 from a 400/203 combo. The th400 tailshaft that fits a 203 is super short and only fits that application, nothing else 2wd or 4wd.

You will also need the trans to tcase adapter and kick down switch for the gas pedal.