64½ List of Differences
- Details
- Category: Early Mustang Knowledgebase
- Published on Monday, 25 March 2013 19:57
- Written by Klaus
- Hits: 46920
On a first view it should be easy to determine the build date if you start checking the VIN of a car, but in this case it's not so easy. Ford decided that the early mustang will get the "65" status from beginning and so every serial number started with 5Fxxxxxx instead of 4Fxxxxxx. <BR>This caused a 18th month production time for the 65 mustang! The official transition date from 64½ to 65 and also the latest scheduled build date is the 31st of July. The start of the second production run of a 65 mustang was the the 1st of August. Being a weekend date the first registered scheduled build date was the 4th of August. Before that date a total of 121538 early 64½ mustangs had been build.
Regardless what the official view of Ford about the model year of this cars is, there are reasons enough to differ. So if you are interested to determine surely if your mustang is a 64½ there are some rules which don't have exceptions:
- every VIN has to start with "5"
- there doesn't exist a 64½ fastback
- there doesn't exist a 64½ luxury or GT option
- every D,F,U engine coded early mustang is a 64½
- every 64½ must have an generator
- every 64½ must be build in Dearborn (march to august) or San Jose (13 th of July to august)
Use the 64½ Decode Info to check if the dataplate options (Date code, DSO, Paintcode,...) match the requirements for a 64½ production mustang. Also this should be enough to answer the first round of questions, but what's about the other, over 100 differences between these two production years? When I searched inside the worldwide web I found several pages listing the differences, but most of them were incomplete and mostly usable for helping to determine which car it is. I wanna to go a step further with showing every difference to build up enough information for concourse correct restoration and so I decided to build up my own list.
In a first step I set up my 64½ parts page (check inside the Gallery), where you can see some of the special 64 1/2 parts.
What you see here isn't the holy bible of mustang knowledge, but I tried to do my very best to built up a correct and complete list. I hope that there are a lot of early-mustang friends out there who will help me to get the errors out and to finish it some day ...
Interior | ||
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Driver's side has white "A" on it | |
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with only one contact button (2/65) | |
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fits to 64 horn ring | |
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horn ring brush and insulator for use on models with a 64 horn ring | |
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Burtex splatter - Convertibles normally had rubber plaid | |
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were not painted in bodycolor on some early cars | |
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clutch, brake and gas pedal pads do not have indentation around edge for stainless trim | |
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64½ auto shifter bezel dial and console shifter dial do not have red arrows | |
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special for Man. Transmission w/o console option | |
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special for 4 spd | |
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smaller one on very early (i.e. preprods) 64 | |
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special plastic disk | |
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clip-on type instead of screw-on | |
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clip-on type instead of screw-on | |
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clip-on type instead of screw-on | |
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different edges - not rounded like 65's | |
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can identified by the hole for the contact spring | |
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for door light switches on inside door edge | |
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different and painted interior color | |
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black plastic instead of clear plastic /FONT> | |
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with warning light "GEN" | |
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From Bendix - serial starting with TBZ, different scale | |
Headliner rods | one end is removable on rear two rods | |
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Black with cloth in the middle - unique in 64 | |
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Has a heal but no toe pad | |
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Does not cover the sides of the rocker panel to step plates | |
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chrome buckles in alligator-skin style with eye bolt ends | |
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round plastik fastener to secure belt hooks to bolt | |
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early style eye bolt for chrome buckles | |
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Not available; no holes or anchors | |
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different cover and different content | |
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not adjustable until 5/08/64 | |
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Seat Spacers and mounting bolts for non adjustable passenger seat | |
Body & Wheels | ||
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air vent openings, no holes for mounting horns, voltage regulator holes | |
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One straight bolt mounts in special bracket in trunk | |
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13" 4 lugs only on 170 CID available | |
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13" only on 170 CID available | |
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with ford crest symbol | |
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argent wheel with silver accents instead of charcoal | |
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two types differ on powerbrake | |
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jar cap stamped with "fill in heavy duty fluid only" | |
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mounts in special master cylinder | |
Lines | fuel and brake line clamps are screwed to floor, not clipped | |
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angled edges not completely folded over | |
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have beveled edges to match hood lip | |
Headlights | early 64½ headlights have raised FoMoCo script | |
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does not have the channel for the rubber seal | |
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have a recessed phillips head screw instead of solid rubber | |
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underside of the hood does not have drill holes between vent openings folded over and headlight assemblies are beveled | |
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black not natural metal look | |
Engine Compartment | bracket between inner fender apron and cowl cover have extra vertical tab | |
Front Shock Towers | no drain in frame rail under shock tower | |
Engine & Transmission | ||
Engines | V8 - 260 & 289 cubic inch (5 bolt); 6 cylinder - 170 cubic inch | |
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are close bellhousing pattern - no ears; smaller input bearing cover | |
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include oil filler tube and dipstick tube | |
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Aluminium and fit's only on early cover; no alternator mount hole | |
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No oil filler cap | |
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small opening for PCV valve on passenger side and different valve | |
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hose without turndown to valve and used of brass elbow instead | |
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different location of oil drain hole | |
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with transverse muffler (before 8/15/64) | |
Mufflers | dual exhaust system mufflers were parallel but no resonators; pipes are turned down | |
Pipe hangers | Rear tail pipe hangers for dual exhaust are not through the frame | |
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5 mounting bolt holes; not interchangeable with 65 | |
Brake hose brackets | Front have a hexagonal cut-out instead of star washer cut-out | |
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rod linkage for all automatic | |
Differential | special U-Joint with all 170 CID | |
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moulded hose with all 260/289 CID | |
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unique mount insulators with all 260/170 CID | |
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unique with all 260 CID | |
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64½ uses a brass 90 degree elbow instead of a contoured hos | |
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BF42 plugs on 260 and 289, BF32 on hi-po | |
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tripple sheave slotted cast iron with all 260 CID w/o AC | |
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two sheave slotted cast iron with all gen engines | |
Front drive shaft | (HIPO/4spd) before 10/05/64 28 splines | |
Air conditioner compressor | different bracket | |
Air conditioner idler | special pulley and bracket assembly | |
No convertible reinforcement from fender apron to firewall | ||
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had 5 slotted holes | |
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special clamps without screws | |
Electric | ||
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wires to bucket are sealed instead of later snap on boots | |
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top sides cables with studs and no springs | |
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All unique (longer) | |
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differnt switch assembly on 64 | |
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Autolite Black or FoMoCo | |
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for all 64 1/2 two type for 170 CID and 260/289 CID | |
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for all 64 1/2 without air cond. | |
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for all 64 1/2 with heat shield | |
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for all 64 1/2 mounts over generator | |
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only one level | |
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no mounting for resistor circuitry | |
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two speed with circuitry inside motor; ground cable | |
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two speed with off in center position | |
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All with gen; mounts on radiator support | |
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with early eaton pump only with special adapter | |
Exterior | ||
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"Mustang" emblem on fender is 4-1/2" long | |
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without retaining cable | |
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Different retaining screw location | |
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winshield wiper has smooth cap instead of flanged | |
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winshield wiper post has a chromed nut extension | |
Door | Outside door felts backing is black not chrome | |
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striker plate attached for door light switch | |
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has a small oil filler cap | |
Distributor Rotor | unique with all 170 CID | |
Distributor condenser | unique with all 170 CID | |
Distributor vacuum line | unique with all 170 CID | |
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passes front of distributor with all V8 | |
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autolite BF32 star powerplugs | |
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the wirering is completly different - for an example my generator wiring harness | |
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unique mounting point beside carb on manifold | |
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Bracket for mounting on manifold | |
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brown body instead of black one | |
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special before 8/17/64 | |
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backing cups have no cut-out, originals are stamped lh/rh | |
Pedal | Clutch and brake pedal secured with "E" clips | |
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