This is a recipe I wrote up for the installation of the S10 T5 into a Model A.
Warren
S10 T5 Upgrade in your Model A 4 Banger
This is best done with the body off.
It assumes mechanical brakes are being retained.
A S10 4WD less the transfer case is being used.
Remove all brake rods.
Remove center cross member by grinding and removing rivets.
Remove e-brake cross shaft.
Remove e-brake handle.
Remove brake cross shaft.
Unbolt rear spring
Remove clam shell
Slide rearend assembly out from under back of car
Stand rearend on jack stands with torque tube vertical
Remove axles. A good puller needed. Mitchell sells one.
Remove radius rods from backing plates and torque tube
Remove speedometer housing
Remove torque tube
Remove speedo gear and bearing from front of torque tube
Remove transmission
Remove clutch and flywheel
Cut torque tube approximately 7” from rear flange
Remove 10” from front half of tube
Machine back ½” of front tube to fit in back portion of tube
Be sure to keep proper alignment of radius rod mount and flange bolts.
A total of 11.5” of length now removed from tube. Weld tube.
Remove driveshaft and pinion gear from banjo using Mitchell pinion puller.
Remove 11.5” from rear of driveshaft about 7” ahead of pinion gear.
Align drive shaft pieces and weld.
Install pinion gear back into banjo using Mitchell installer tool.
Install torque tube over driveshaft and bolt to banjo.
Install new front bearing in torque tube and reinstall speedo gear.
Install speedometer housing.
Install new pilot bearing in flywheel.
Install ring gear on flywheel.
Install Burtz 30 lb. flywheel, torque to 55 lbs.
Install V8 clutch with Chev splined disk.
Torque clutch bolts to 25 lbs.
Install AA bell housing,
Remove 5/8” from input nose.
Cut out rear mount from transmission.
Install transmission adaptor from Vintage Metalworks.
With S10 T5 complete less transfer case, install to bell housing.
Install tail shaft adaptor kit from Vintage Metalworks..
Install front half of clam shell
Install rearend assembly back into universal joint.
Install split part of clam shell.
Clamp in rear spring.
Install cross member modified to fit over transmission.
Cut center from brake cross shaft and modify as per diagram.
It is imperative to keep the ends of the shaft where the bearing goes in alignment, I had three tries before I got it right. Perhaps mounting it to the frame before welding might help. I did not do this.
Remount brake cross shaft.
Remove pin from e-brake shaft actuator, move actuator 4” to passenger side and weld.
Mount e-brake cross shaft.
Make mounting plate for e-brake handle as per diagram.
Mount e-brake plate and handle to T5.
Mount pedals to Vintage Metalworks pedal shaft.
Re-install brake rods
Be sure to check all fluids and grease fittings.
Parts highly recommended to upgrade Model A transmission to T5
Mitchell pinion puller/installer
https://mitchelloverdrives.com/mitch...on-puller-kit/
Mitchell hub puller
https://mitchelloverdrives.com/mitchell-hub-puller/
Burtz lightened flywheel
https://burtzblock.com/products/flywheels
Vintage Metalworks
https://vintagemetalworks.blogspot.com/
V8 clutch pressure plate and Chev 9” disk from Speedway
In one installation, I moved the cross member back to clear the transmission and for the other I I modified the cross member by cutting it to fit and reinforcing the cut area. I do not like to weaken the structure of the cross member.