- First I want to thank you for assisting me with the hydroboost for my 87 and 88 GW's. I have one installed and running on the 87 and I am totally amazed at the braking power that this Jeep now has. You can lightly touch the pedal and without a lot of pressure bring it to a full stop with ease. The one challenge that I had was the PS line from the pump to the HB. I purchased a line from a 85 Chevy pickup and had to seriously work on the pump end to get it to install without rubbing somewhere. I have found a Russell PS braided steel hose for PS lines that I will use on my 88 when I get it running.
- I have found a Novak adapter that supposedly will work.
Novak Adapters: -------------
Adapting the Turbo Hydramatic 400 Transmission
to the Jeep Dana Model 300 Transfer Case
Our TH400 to Dana 300 conversion makes for an absolutely strong and capable assembly both on-road and off-road, and it remains one of our most requested automatic transmission to transfer case combinations.
The adapter kit is also designed for compatibility with the Jeep NP208, 219 & 229 transfer cases as found in Full Size Jeeps, 1980-1991.
It is pricey at $494.00 but it appears to do the job. Is this early TH400 for the Jeep still one with overdrive as the GM TH400's. That is my sole purpose - to get overdrive.
What year model jeeps would I look to for the flex plate and torque converter?
87 Aggie Wagon - Son's GW
88 Gray Ghost - Dad's GW
85 Brown Bandit - Spare Parts donor