Chevrolet 1977 10 Series, Руководство по ремонту, Страница: 74 / 468

4B-2 OVERHAUL MANUAL
Fig. 4 B -3 A ~ P in io n G a u g in g T o o ls - 8 1 /2 " Ring G ear Fig. 4 B -4 A -P in io n G a u g in g T o o ls - C orvette
4. "Zero" the indicator on the highest spot of the gauging
surface.
5. Swing the plunger off the plate and read the dial
indicator. This reading is the required shim thickness for a
nominal pinion.
6. If a pinion is coded+ 2, + 1, -1, or -2, alter the shim
thickness that many thousandths of an inch.
For example, if the indicator reading was .028, and the
pinion code is -1, the required shim would be .028-.001 = .027
inch.
Corvette and 8 -7 /8 " Ring Gear ■ Truck
1. Set up the tools as shown in figures 4B-4A, and 4B-
5A.
2. "Zero" the dial indicator
off
the gauge plate.
3. Swing the plunger across the plate until the highest
reading is obtained. Record the result.
4. Combine the pinion code num ber with "45", which
represents a nominal pinion. From that number, subtract the
dial indicator reading. The result is the required shim
thickness.
For example, if the reading was .016, and the pinion code
was + 2 , the correct shim could be determ ined as follows: 45
+ 2 = 47; .047 -.016 = .031 inch.
Fig. 4 B -5 A -P in io n G a u g in g T o o ls
- 8-7/8"
T ru c k
7-1/2 ", 8-1/2" and 8-3/4" RING GEAR
INDEX
Differential C a s e ................................................................. ..4B-3
Removal and D isassem bly.............................................. ..4B-3
Inspection........................................................................... ..4B-4
Side Bearing R eplacem ent.............................................. ..4 B 4
Ring G ear R eplacem ent...................................................4B-4
Installation and A djustm ent.............................................4B-5
Drive P in io n ......................................................................... ..4B-6
R em oval......................................................................... ....... 4B-6
Bearing R eplacem ent....................................................... ..4B-8
Setting Pinion D e p th ....................................................... 4B-9
Installation and A djustm ent........................................... 4B-11
Checks and A djustm ents................................................... 4B-12
Pinion Bearing Preloadl..................................................... 4B-12
Side Bearing P reload........................................................ 4B-12
Pinion D epth and Backlash............................................ 4B-13
G ear Tooth Contact Pattern C heck............................. 4B-13
J-6 2 6 6 -2 5
D IA L IN D IC A T O R —-
J-6 2 6 6 -3 1
J-6 2 6 6 -2 8
J - 6 2 6 6 - 5 2
H IG H STEP O F
G A U G E PLATE