
i
WARNING: Products on this page can expose you to a chemical, which is known to the St ate of California to cause cancer or reproductive harm. **For more information go to www.P65Warnings.ca.gov**
124
AXLE – DIFFERENTIAL PARTS
6b. Special Lock Under Head of U-Bolt: Has (3) tabs that bend. 1965-69 All.       C1301  2 oz.
    "Nut": What the bolts screw into. These "nuts" are inside the differential and wear because of constant in and out thrust from axles. (25) teeth – Fits All 1965-69.  
    Positraction require (1) – All others require (2).           C1302   4 oz.   (Check Availability)
7. Seal Assembly: Where drive shafts come out sides of axle. Common area of leaks, easily replaced. Fits All 1960-69.  
  Order (2) and do both sides (included in axle gasket sets).         C496  2 oz.
8. Large Adjuster Sleeve 0-Rings: 1960-69            C2208  1 oz.   
9. Differential Side Bearing Adjusting Sleeve: See USED page 357 & "NOS" on website
 
Positraction Adjusting Sleeves: Excellent Repros.   1961-64 Cars & 1961-65 Vans  C7271  2 lbs.
                                      1965-69 Cars     C7272  2 lbs.
11. Differential Side Bearing (and Races): 1960-69 All, either side.     PREMIUM      C1680     12 oz.  $$ Saver  C8457     12 oz.
12a. Bolt – Adjusting Sleeve Lock Tab: 1960-69 Left Side with Lock Washer    C4927  2 oz.   
                         1960-64 Right Side (Clutch Spring Attaches)  C1677R  2 oz.
12b. Differential Adjusting Sleeve Lock Tab: 1960-69 All Either Side    C1682  2 oz.   
14.   Throw Out Bearing Shaft – Differential Must Be Disassembled.
This is the part that the throw out bearing slides on. They are often cracked on the bottom which will allow them to leak gear oil onto the clutch. Many people are just 
replacing the stock cast ones with our super strong machined shafts to be safe. We offer the "bullet proof", top quality OTTO Parts shaf t which also accepts 2 seals for 
double sealing protection. You can either install 1 seal which will be positioned in a slightly new position on the input shaft, or install 2 seals and the stock retaining ring. 
No modifications are necessary. Fits all 1960-69 standards. YOU MUST DISASSEMBLE THE DIFFERENTIAL. CL ARK'S are made to exacting tolerances and plated. DO NOT 
accept inferior throw out bearing shafts. There are several critical dimensions. If you are ordering a Gasket Set also remember to order (1) extra seal (#15).   
                          THROW OUT SHAFT for 2 SEALS  C7463  1 lb.
15. Seal: Throw out bearing shaf t. Seals input shaft. f A MUST WITH A CLUTCH JOB! REPLACE EACH TIME ENGINE IS PULLED!   
                                        1960-63  C494     2 oz.   (ID approx. 0.660", 21/32") 
                                        1964-69  C495     2 oz.   (ID approx. 0.712", 23/32") 
16.  Throw Out Bearing Shaft Split Ring: For retaining inner seal.  1960-69 Standards  C1179  1 oz.   
17.   0-Ring for Stator Shaft                      C3361  1 oz.   
18.  Torque Converter Seal: All 1960-69               C1698  4 oz.   
19.  Stator Shaft: 1963-69; sticks into torque converter. See "NOS" on website
20.  Seals: For front and rear of PG pinion shaft.            C3363  4 oz. each   
22.  Front & Rear Pinion Bearing (& Race) : 1960-69 All        PREMIUM  C1681  12 oz.
                                        $ SAVER  C8458  12 oz.
23. 
Cover Gaskets: Included in gasket sets. 1960-69.         C2207  4 oz.
                   Heavy Duty Gasket: Thicker cork and rubber composition  C6020  4 oz.   
24.  Bolt: With toothed washers. Used on differential cover.    Set of 6: C2361A      6 oz.
25.  Vent Assembly: For stock cover only.                 CX5305  2 oz. 
26.  Plug       1960-63 Filler    C4383     2 oz.  1964-69    C4929      2 oz. 
26½.  Speedo Drive O-Ring: All 1960-64.                 C2210  1 oz. 
34.  Lock Tab for Speedo Drive Unit          1960 PG, 1961-64 Cars, 1961-65 (FC) Vans  USED See #34, page 357      
                                        Bolt for Lock  C4930  2 oz. 
35.  Speedo Driven Gear – in Differential: See USED page 357 & "NOS" on website.
SPEEDOMETER GEARS – 1960-64 Cars & 1961-65 Vans (FC) – NYLON GEARS ONLY
There were 2 basic outside diameters of the nylon driven speedo gear . These have to match up with the correct diameter steel gear on the differential pinion gear. The 20, 21 and 
22 teeth gears had a smaller o.d. of about 0.847" and the pinion gear was about 1.845". The 23, 24, 25 and 26 teeth gears had a larger o.d. of about 0.892" and the pinion gear 
was about 1.761". If yours has the smaller o.d. nylon gear you cannot install a larger o.d.! Within your "size" group if you put in a gear with 1 more tooth, your speedo will slow 
down about 3-4 MPH (and the opposite is true). The one ratio to really watch is the 3:55 Car vs. Van. The Car used the larger o.d. and the Van used the smaller. Be sure you know 
which differential you have. To help with this situation we have produced a special 22 tooth with the large o.d. If your speedo is off due to age or tire size you may be able to get it 
closer by varying your nylon gear. They are easy to change. The following chart is accurate as far as we know! Replace your worn or stripped gear.
Stock Nylon Gears Replacement Nylon Gears
3: 27 3:55 3:89 Smaller o.d.     FC Larger o.d.     Cars
1960 Car s (early)
- - - - 24 26 20 teeth      C9265     1 oz. 22 teeth (special)    C9267    1 oz.
1960-64 Car s
21 23 25 21 teeth      C8959     1 oz. 23 teeth      C8960     1 oz.
1961-65 Vans (FC)
20 22 24 22 teeth      C9266     1 oz. 24 teeth      C9268     1 oz.
25 teeth      C8961     1 oz.
Steel Retainer: Nylon gear –1960-64  C9027    1 oz.
36.  Pinion Shaft Bearing Shims: 1960-69         .006  C1944  2 oz.
                                    .009  C1945  2 oz.
                                    .012  C1946  2 oz. 
                                    .015  C1947  2 oz.
                                    .018  C1948  2 oz.   
37.   Drain Plug: 1960-63                    C4383  4 oz. 
SHIM SET
5 shims; 1 of each shim .006 - .018
C1948A   4 oz. /set
MULTI-KITS
see Blue pg. MK-10
Differential MUST be  
disassembled to install shaft
C7463