Hi all,

Hope this is the right place for this one.

I have a 390 FE in my 66 F100 with 3 speed column shift.

Looking at the gearbox tag, I can make out RAN ?B1
And where the ? is there is the faintest outline of another letter.

Looking at the ID charts for 3 speed toploaders I can only see one which matches (RAN BB1) from a 1970-71 Maverick 200 I-6?

Have I identified it correctly?

And does that sound like it will do ok on the back of the FE. I assume it has been there a very long time anyway.

Cheers.
Dean

 

Best I can do:

3 Speed ID Chart

Length and spline counts are what you are after methinks.

More:

Manual Transmission Identification Guide - FORDification.com

Info of possible interest:

https://www.ford-trucks.com/forums/1...tranny-id.html

https://www.ford-trucks.com/forums/6...-trans-id.html

 

There's a gazillion different suffixes for these transmissions, BB1 is not the same as B1!

Trans is not the original, it was probably swapped in along with the 390.

The RAN prefix was introduced in 1967 for the Ford type 3.03 3 speed all syncromesh LIGHT duty manual transmission.

But, there's no RAN prefix with a suffix of B1 .. so please look at it again.

1963/66 3.03 trans used a HEF prefix.

But, if it's RAT-B1 .. it's a 3.03 MEDIUM duty trans from a 1967/68 Galaxie/LTD

Most of the internal parts for the HEF, RAN & RAT 3.03's are the same 1963/87.

 

You've 'quoted' me, but edited what I said to mean something different (or make me look stupid??)

I said I can make out RAN ?B1, and where the question mark is there appears there may be another character which is heavily worn and barely visible.

Looking in the ID table (the one linked in the previous reply) I noted there was no RAN-B1.
But there was a RAN-BB1 (the only suffix in the linked table which matches the format RAN-?B1). As there is no AB1 or similar.

That's why I came to the conclusion it may be a RAN-BB1.
Unless there are more suffixes out there than shown in the table.

I will check again though, and try to get a picture.


My question was also around is this LIGHT duty transmission (if that is what it turns out to be) ok in a truck - one that isn't loaded up and isn't used for towing. Is it just the gear spacing which make it light duty?

 

Look at this chart listed in post #2 for the different HEF, RAN & RAT 3.03 transmissions.

Notice that RAN BB1 is for a Maverick w/a 200 I-6, so I doubt this is the trans your '66 has.

I looked in 5 Ford parts catalogs (1965/72 & 1973/79 Ford car; 1964/72 & 1973/79 & 1980/89 Ford truck), could not find a RAN w/a B1 suffix listed, so I said please look at it again.

I edited what you typed, not to make you look stupid, but I deleted what applied, what didn't apply.

 

That is the chart I used, and that is what I said.


I will check again.

 

There's no RAN B1 suffix. So, you cannot say it's RAN BB1. There are more RAN suffixes, besides what's listed in the chart.

These 1969/74 Econoline 3.03's are listed in the truck parts catalogs (but not in the chart): RAN-BR or BR1, BP or BP1 or BS or BS1

If you cannot read the code stamped on the front of the tag, flip it over and try reading its backside.

 

Subscribed...

 

Most of the 3.03 three speed transmissions for pickups had a yoke bolted to the output shaft for a u joint, all of the car three speeds I've seen used a slip yoke.

Light duty trans have smaller shafts than heavier duty trans, they will work for normal driving but if you get after it much for start hauling or towing they won't hold up to well.

 

Here is a pic, as I said. It is definitely RAN and definitely ends with B1

As we have established RAN-B1 doesn't exist.

So what we need is an exhaustive list of all RAN numbers that end B1.
And from what I have seen, that amounts to one. RAN-BB1

If there are others please let me know.

BR1, BP1, and BS1 do not end B1, so they were never contenders.


And it has a slip yoke, as I had the prop shaft off to try and replace the output seal, to discover my new seal looked wrong. Hence then checking the ID tag.

Also, as it is riveted, I'm not going to take it off to flip it over, unless a load of other codes come to light which it could be.

Cheers.

 

Look to the left of the "B". There is a faint partial stamp there, with the long side of the "B"--looks similar to this: "[".

Does the rest of the trans match to BB1?

 

Does the truck have a short or long wheelbase? If a long wheelbase (8' bed), is the drive shaft a one or two piece?

 

Yes I agree. Which is why I was saying there was another letter before, and that it could plausibly be a 'B'.

What else can I check to see if it matches up (apart from casting date?) And where am I likely to find the casting date?

 

It's a short wheel base, with a 1 piece shaft.
Thanks.

 

Do you need related driveshaft and/or trans parts, or are you just attempting to ID the trans?