FJ40 transmission question "FL70"??

[BubbaBuckWheat]

Hello, new to the forum so if this is discussed on a different thread, or I'm doing this wrong please show me the way.

Just picked up a July 1974 FJ40 and found a "FL 70" stencil on the side of the transmission and can't find any details about this. Curious if this is the original transmission or not. Transfer case however is date stamped for July 1974.

Transmission seems to be in good shape, just curious about the stencil.

 

[Mark W]

That is the correct OEM transmisson for a US spec 1975 FJ40. The PTO cover is the tell tale. A '74 model would have also had the PTO cover, but the output spline would have been 10 spline. I imagine that some of the later '74s may have had the 16 spine output as well. Although Toyota often does it, I personally am not aware of any pre-model year change of this aspect.

I have never come across any, or even any discussion about a OEM PTO unit to attach to that port. I suspect it may have been an idea that never made it inot production.

I am unfamiliar with the "FL70" nomenclature. That does not look like any OEM markings I have ever come across.

Mark...

 

[Grayscale]

'75 4-speed

 

[pb4ugo]

I've seen pics of similar yellow or white markings on 3 speeds on this site. The numbers and letters were different though. I think the consenses was the markings were considered to be from the factory.

 

[BubbaBuckWheat]

That is the correct OEM transmisson for a US spec 1975 FJ40. The PTO cover is the tell tale. A '74 model would have also had the PTO cover, but the output spline would have been 10 spline. I imagine that some of the later '74s may have had the 16 spine output as well. Although Toyota often does it, I personally am not aware of any pre-model year change of this aspect.

I have never come across any, or even any discussion about a OEM PTO unit to attach to that port. I suspect it may have been an idea that never made it inot production.

I am unfamiliar with the "FL70" nomenclature. That does not look like any OEM markings I have ever come across.

Mark...

I thought it was the 3 speeds with the 10 spline output. The 74 is the first year of the 4 speed with the 16 spline output.

 

[Living in the Past]

That is the correct OEM transmisson for a US spec 1975 FJ40. The PTO cover is the tell tale. A '74 model would have also had the PTO cover, but the output spline would have been 10 spline. I imagine that some of the later '74s may have had the 16 spine output as well. Although Toyota often does it, I personally am not aware of any pre-model year change of this aspect.

I have never come across any, or even any discussion about a OEM PTO unit to attach to that port. I suspect it may have been an idea that never made it inot production.

I am unfamiliar with the "FL70" nomenclature. That does not look like any OEM markings I have ever come across.

Mark...

To my knowledge no ten spline H42 were ever made. None in the US. The transfer case on the first H42 still had the twenty nine teeth input gear with sixteen splines. Been confused as three speed low range gears on a four speed. But it has the same low range as other one piece transfer cases attached to a four speed. The input gear has been used to to convert three speed transfer case to a four speed.

 

[Mark Jennings]

Yes, this has been a conversation on mud in the past….and comes up now and again. The stenciled markings were included so that during vehicle assemble, the warehouse workers could readily identify what transmission they were delivering to the assembly line. The Toyota 3 speeds and 4 speeds were used in many truck/forklift applications besides the FJ or BJ series. The stencil helped identify what was needed for that production series.

 

[BubbaBuckWheat]

Yes, this has been a conversation on mud in the past….and comes up now and again. The stenciled markings were included so that during vehicle assemble, the warehouse workers cold readily identify what transmission they were delivering to the assembly line. The Toyota 3 speeds and 4 speeds were used in many truck/forklift applications besides the FJ or BJ series. The stencil helped identify what was needed for that production series.

Thank you!

 

[Mark W]

To my knowledge no ten spline H42 were ever made. None in the US. The transfer case on the first H42 still had the twenty nine teeth input gear with sixteen splines. Been confused as three speed low range gears on a four speed. But it has the same low range as other one piece transfer cases attached to a four speed. The input gear has been used to to convert three speed transfer case to a four speed.

I agree. You are correct. I sat for a few moments and cleared the muddy memories a bit. The 16 spline "conversion" gear was what I had in my mind and to got the reality twisted around a bit.

So the tranny pictured by the OP is either a '74 or a '75 and since the rig is a '74...



Mark...

 

[Mark W]

I thought it was the 3 speeds with the 10 spline output. The 74 is the first year of the 4 speed with the 16 spline output.

That is correct. 10 spline in the 3 speeds and 16 spline in the early 4 speeds. I was regurgitating part of a mistaken conversation about the '74 4 speed from long ago that crept into my head as I was typing.

Mark...

 

[Living in the Past]

That is correct. 10 spline in the 3 speeds and 16 spline in the early 4 speeds. I was regurgitating part of a mistaken conversation about the '74 4 speed from long ago that crept into my head as I was typing.

Mark...

Figure the 16 spline with 29 teeth transfer case input gear is what your were thinking. I know there was a four speed with 10 splines. Thought it was in the pre H41/H42 start 9/73. I tried to buy four speed from Mark A. back in the 1990s I thought was an NOS H41 with ten splines. Mark A.was unable to acquire the transmission and didn't happen. I show the early H45 used the same transfer case input gear as the three speed up to 9/73. This transmission most likely had a ten spline. I know this four speed transmission was used in the FJ40 9/72-9/73 in some markets. I tried to do a trade for one from South America for a Fairey OD but shipping was too costly. Probably been worn out anyway.