Topic: 4 speed transmission used in K codes

[FastLaneMustang]

I have a question regarding 4 speed transmissions used in K code cars from 64-66.  Every book I’ve went thru says the HEH-T was only used until 10/1/64, which was then followed by the HEH-BX for ’65-66.  I’ve went thru several posts on this forum that mentioned that the HEH-T may have been used into ’65.  Does anyone have any additional info regarding this? 

As an aside, I'm new to the restoration world (my day job I build hot rods) and I have to say this site is an invaluable source.  Thank you all for sharing the immense knowledge that only years of dedication brings.  I'm always concerned about the next generation and how they will learn about these cars and develop a passion for them.  This is the type of forum that will bring them in and hopefully hook them.  As for doing my restoration project, it hooked me.

Thanks.
Dave

[J_Speegle]

10/1/64 would be into/after the start of 65 production.  But not sure what other posts your referencing. I would guess your asking if they were used/originally installed after Oct 1 1964

I have some pictures of -T's with later VIN's stamped in them but I hesitate assuming that the stampings are original at this point and will see what others have to offer

[CharlesTurner]

The MPC was in error and it transcended to secondary publications or those that used the MPC as a basis.  The HEH-T was used through '65 production or at least until very late in '65 production.  I don't recall the exact date the HEH-BX started appearing, but it is generally accepted that it happened during '66 production.

[livetoride60]

Charles, Jeff, or others

Does anyone know if the HEH-T was used in non hipo Mustangs, or in other cars?  I thought they normally put wide ratios in the other stangs. 

Interesting info on the production use Charles.  I had only heard the couple months of use in Ks, so good to know the rest of the story.

Lastly, I have an extra HEH-T with no VIN stamp.  What would have been it’s most likely use?  regular Mustang, service replacement?   It’s serial number is 014146.  The HEH-T in my K is in the 011xxx range, and it’s an Oct 64 car.

Thanks,
Rich

[sgl66]

Does anyone know if the HEH-T was used in non hipo Mustangs, or in other cars?  I thought they normally put wide ratios in the other stangs. 

HEH-T is a close ratio tranny used in '65 hipos. There is an HEH-BT that is a wide ratio and used in '65 non-hipo cars.

[livetoride60]

Thanks for the info.

Does anyone have any evidence of the HEH-T being used in regular Mustangs, or evidence of them NEVER being put in regular 289s?  David Kees site doesnt even list it for hipos, not that he is an authoritative source.  However, have a guy claiming HEH-Ts were used in non hipo cars as well because of that.

Also, what is the physical difference between a HEH-T and HEH-BT?  Hoping its more than just the tag.

Thanks,
Rich

[CharlesTurner]

HEH-T is close ratio, HEH-BT is wide ratio, the gearing is different.


Also, I'm not sure if the HEH-BT has the extra 'handle', I like to call it on the back that sticks up on a HEH-T. 


I'd look closer for a VIN and check the casting dates of the main case and tail shaft.

[K-HESS]

I have rebuilt quite a few Toploaders over the years and have had about half a dozen HEH-T transmissions. I have found just as many to have a K-code vin number as I have without. All of the transmissions I have had were already out of the car when I got them so I have no concrete evidence that they were used in non HiPo cars but it does seems plausible to me. Was there a option box on the original order form for close or wide ratio?

The David Kee Toploader website is convenient but it has flaws. The HEH-BT and also the RUG-AR are both listed as a close ratio. They are actually both wide ratio transmissions. These are just two examples that come to mind that I have dealt with in the past year so there may be others. I did send him an email about the issue as this could become a problem for someone who orders parts without counting gear teeth first but my message went unnoticed.  The 1975 final edition of the Ford Master Parts Book has all of the standard transmissions listed in section 70 pages 1-14.

[livetoride60]

HEH-BT is a wide?  David Kee site below lists it as a close.  If true, then that shows how inaccurate his site can be.

http://www.davidkeetoploaders.com/idchart1.htm

[livetoride60]

I have rebuilt quite a few Toploaders over the years and have had about half a dozen HEH-T transmissions. I have found just as many to have a K-code vin number as I have without?

Thanks for the info.  Mine has no VIN so assuming it came out of a regular car too.  Has a L 13 date on the main case, which I take to be Nov 1964, which lends more creedance to it being factory issue vs service replacement

These are just two examples that come to mind that I have dealt with in the past year so there may be others.

Good to know.  I can pass this along to the guy who is taking David Kees site as gospel.

The 1975 final edition of the Ford Master Parts Book has all of the standard transmissions listed in section 70 pages 1-14.

Thanks

[livetoride60]

Typical VIN stamp area on mine

[livetoride60]

Date stamp on main case which is a C5.  So would this be Nov 13, 1965?   Do engineering numbers go by calendar year of design or model year they were being made for?

[K-HESS]

livetoride60- Some of the HEH-T transmissions I have found with a vin number are stamped across the bottom of the case with the numbers being stretched out more then the ones that are stamped on the the rear pad. I have also seen one that had the number stamped on the bottom edge of the rear tailhousing very much the same as the early Falcons and Comets were. The owner would not sell so I was unable to document the vin number but do remember it was from a coupe and I'm pretty sure it was built at Metuchen.

[67350#1242]

Here is an example of one I once had with VIN stamped across bottom:

[livetoride60]

Ok thanks everyone.  I looked over all the usual spots pretty thoroughly but will check again.