The 4x4 conversion Guide (LOTS!! OF PICS!!)
The 4x4 Conversion
First off I would like to thank every ttora member that has helped me with questions and also finding parts. Thank You!
Now onto the conversion. First off you need to know that this is NOT EASY! It will take a few days. I made this post so other people thinking about doing it will see what is involved. I did this swap on a 99 V6 extended cab Tacoma. Below I have a parts list make sure you have everything up front.
Parts:
A340F Transmission
Front Diff (make sure it is the same ratio as your rear) (with the mounts)
Front drive shaft
Rear Drive Shaft
Left and right CV’s with end bolts
Front spindles/Hubs
4x4 shifter boot
A340F transmission mount (prerunner one wont work)
11qt ATF
Vacuum tank
Vacuum Tubing and 4x4 solinoids
Tools:
2 18” ratchet extentions
A 3/8 knuckle
Various extentions
Impact gun (if you don’t have one, harbor and freight sells a 18v cordless for $49. You will be happy you have it)
10mm-19mm shokets
Prybars
Jack (2 will make life a lot easier)
And other basic tools
Part One: Transmission swap
Disconnect your battery
Remove the console
Undo the bolts holding the shifter assembly down, and disconnect the electrical connection
Once you have the shifter out undo the rubber. Notice the oval, trim that out.
Once the oval is trimmed out it should look like this
Now place your rubber 4x4 boot/seal in. That’s it for the shifter.
Now remove the Drive shaft
Now remove the front skid plate
Remove the Flywheel inspection plate
Remove the six bolts on the flywheel, You will need a wrench on the crank pully to rotate the motor to gain access to all six bolts.
Undo the crossmember bolts, make sure you disconnected the 02 sensor conection. (make sure you have a jack under the transmission!)
Undo all electrical connections
Disconnect the started wires, and remove the starter
Disconnect the ATF lines
Now you are going to have to remove the bell housing bolts, this is where all the extentions come into play, there is also on bolt that is bolted to the bottom of the header… mine broke when I was taking it of… oops
Here is the layout of the bolts, so you know what your looking for. Make sure you have another jack under the bell housing. If you only have one jack, place a flat piece of wood under the transmission pan and place the jack under there.
NO picture for this step but you need to carefully remove the 2WD tranny. Then get the A340F tranny and slide it under the truck. Carefully lift it onto the two jacks.
I used a cherry picker the hold the rear of the A340F up
Now its time to jack up the new A340F transmission. Make sure you unbolt and remove the shifter so it isn’t in the way. Make sure the Dip stick tube clears the exhaust
When sliding the new transmission in take your time… this was the longest part… also try to make sure that the holes in the flywheel line up with those on the torque-o-verter.
Once you get the transmission mated up against the engine put the flywheel bolts back in. This will keep the flywheel and torque-o-veter aligned .
Then bolt the bell housing in. No pic, see removal. After that reconnect all electrical connections. Lower the transfer case end of the transmission this makes it a lot easier
Now bolt the crossmember in, and bolt down the mount.
Reconnect the ATF lines
Bolt in the starter
Make sure the top portion of the dipstick tube is connected, check the level.
Reconnect your 4x4 drive shaft
Place your modified shifter assembly back in
Hook up the shifter lever under the truck
That is Part one of the 4x4 conversion, sorry for the lack of pictures at the end. if you have any questions feel fre to ask
Part Two: Front Diff. and adding 4x4 spindles (coming soon)
The 4x4 Conversion
First off I would like to thank every ttora member that has helped me with questions and also finding parts. Thank You!
Now onto the conversion. First off you need to know that this is NOT EASY! It will take a few days. I made this post so other people thinking about doing it will see what is involved. I did this swap on a 99 V6 extended cab Tacoma. Below I have a parts list make sure you have everything up front.
Parts:
A340F Transmission
Front Diff (make sure it is the same ratio as your rear) (with the mounts)
Front drive shaft
Rear Drive Shaft
Left and right CV’s with end bolts
Front spindles/Hubs
4x4 shifter boot
A340F transmission mount (prerunner one wont work)
11qt ATF
Vacuum tank
Vacuum Tubing and 4x4 solinoids
Tools:
2 18” ratchet extentions
A 3/8 knuckle
Various extentions
Impact gun (if you don’t have one, harbor and freight sells a 18v cordless for $49. You will be happy you have it)
10mm-19mm shokets
Prybars
Jack (2 will make life a lot easier)
And other basic tools
Part One: Transmission swap
Disconnect your battery
Remove the console
Undo the bolts holding the shifter assembly down, and disconnect the electrical connection
Once you have the shifter out undo the rubber. Notice the oval, trim that out.
Once the oval is trimmed out it should look like this
Now place your rubber 4x4 boot/seal in. That’s it for the shifter.
Now remove the Drive shaft
Now remove the front skid plate
Remove the Flywheel inspection plate
Remove the six bolts on the flywheel, You will need a wrench on the crank pully to rotate the motor to gain access to all six bolts.
Undo the crossmember bolts, make sure you disconnected the 02 sensor conection. (make sure you have a jack under the transmission!)
Undo all electrical connections
Disconnect the started wires, and remove the starter
Disconnect the ATF lines
Now you are going to have to remove the bell housing bolts, this is where all the extentions come into play, there is also on bolt that is bolted to the bottom of the header… mine broke when I was taking it of… oops
Here is the layout of the bolts, so you know what your looking for. Make sure you have another jack under the bell housing. If you only have one jack, place a flat piece of wood under the transmission pan and place the jack under there.
NO picture for this step but you need to carefully remove the 2WD tranny. Then get the A340F tranny and slide it under the truck. Carefully lift it onto the two jacks.
I used a cherry picker the hold the rear of the A340F up
Now its time to jack up the new A340F transmission. Make sure you unbolt and remove the shifter so it isn’t in the way. Make sure the Dip stick tube clears the exhaust
When sliding the new transmission in take your time… this was the longest part… also try to make sure that the holes in the flywheel line up with those on the torque-o-verter.
Once you get the transmission mated up against the engine put the flywheel bolts back in. This will keep the flywheel and torque-o-veter aligned .
Then bolt the bell housing in. No pic, see removal. After that reconnect all electrical connections. Lower the transfer case end of the transmission this makes it a lot easier
Now bolt the crossmember in, and bolt down the mount.
Reconnect the ATF lines
Bolt in the starter
Make sure the top portion of the dipstick tube is connected, check the level.
Reconnect your 4x4 drive shaft
Place your modified shifter assembly back in
Hook up the shifter lever under the truck
That is Part one of the 4x4 conversion, sorry for the lack of pictures at the end. if you have any questions feel fre to ask
Part Two: Front Diff. and adding 4x4 spindles (coming soon)