TH400 swap question
TH400 swap question I have a 94 z28 a4 car that I’m going to be swapping a TH400 and I need to know what I need to make it work besides the obvious. I have a MWC 9”, torque, arm and crossmember on order, plus a madman dipstick. I know I need a shifter too, but what else do I need to make it work? Tuning, vss etc.Thanks
TECH Junkie
Joined: Dec 2012
Posts: 3,621
Likes: 1,335
From: Iowa
one of the things you need...is the search bar.
There's lots of th400 swaps documented here that have loads of great writeups/pictures/info for you to use.
The basics are simple
-crossmember
-driveshaft
-converter/flexplate combo to work with your engine
-cooler lines
-shifter
-vss setup
-wiring (either for transbrake, or if auto vb still, the passing gear switch)
There's lots of th400 swaps documented here that have loads of great writeups/pictures/info for you to use.
The basics are simple
-crossmember
-driveshaft
-converter/flexplate combo to work with your engine
-cooler lines
-shifter
-vss setup
-wiring (either for transbrake, or if auto vb still, the passing gear switch)
LS1Tech Sponsor
Joined: Mar 2023
Posts: 1,824
Likes: 1,162
From: BERWICK PA
Late model 400s had a reluctor gear you can but them only but they do need ot be installed during build and of course you will need the speed sensor and plug for it wires in the same then someone that can set the count in tune, The speedo should no affect the tune otherwise.
Assuming short tail you will need yoke , driveshaft about 3 inches longer .
Hope this helps , changing the plus per mile is easy enough finding someone with the cable and software willing to do it well a bit harder depending on whre you are.
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Frank formerly of Performabuilt, Now just me, What can I build for you today? Call or message me. Click sig pic for my facebook
Frank formerly of Performabuilt, Now just me, What can I build for you today? Call or message me. Click sig pic for my facebook
