Chevrolet 70 1969 Series, Shop Manual

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REAR AXLE 4-30
SPEC IFIC A TIO N S (CONT.)
N O M IN A L A SSEM BLY D IM E N S IO N 4.4062” 4.7812”
D RIV E GEAR
M axim um R u n -o u t.............................................................................. 0.003” 0.003”
D IFFE R E N T IA L CA SE
M axim um R u n -o u t.............................................................................. 0.002” 0.002”
Side G ear C ontact Surface— I.D ........................................................... 2.756” -2.759” 2.818” -2.821 ’
Spicer Hole— I.D ..................................................................................... 0.998” -0.999” 1.1875” -1.1885”
Idler Pinion Pin H ole— I.D .................................................................... 1.499” -1.5015” 1.753” -1.7555”
Clutch Plate Pin Hole— I.D .................................................................... 0.6835” -0.6850” 0.7460” -0.7475v
SID E G EA R
Differential Case C ontact Surface— O .D ............................................ 2.748” -2.750” 2.8105” -2.8125’
SPID E R PIN IO N
Inside D iam eter..................................................................................... 1.003” -1.004” 1.193” -1.194”
SPID E R
Diam eter of A rm s................................................................................ 0.997” -0.998” 1.187” -1.188"
Allowable Out of S q u a re.................................................................... 0.004” 0.004”
Arms in Same Plane W ith in ............................................................... 0.004” 0.004”
T H R U S T W A SH ER TH IC K N ESS
Side G e a r............................................................................................... 0.0610” -0.0635” 0.0610” -0.0635”
Pinion G e a r.......................................................................................... 0.0287” -0.0320” 0.0610” -0.0635”
Clutch P la te .......................................................................................... 0.1185-0.1275” 0.1185” -0.1275”
Support C ase.......................................................................................... 0.0610” -0.0635” 0.0610” -0.0635”
ID LER PIN IO N
Inside D iam eter..................................................................................... 1.500” -1.501” 1.739” -1.741”
ID LER PIN IO N PIN
Outside D iam eter................................................................................... 1.4945” -1.4955” 1.748” -1.749”
SL ID IN G C LU TC H G EA R
Inside D iam eter..................................................................................... 2.186” -2.192” 2.318” -2.321 ”
W idth of Clutch Fork G roove............................................................. 0.687” -0.694” 0.690” -0.695”
C LU TC H PLA TE
Pin Hole— I.D .......................................................................................... 0.6860” -0.6885” 0.7485” -0.751”
Idle Pinion Pin Hole— I.D................................................ 1
.500”-
1
.50
1 ” 1.753” -1.754”
Plate T hickness..................................................................................... 0.871” -0.876” 0.996” -1.001”
C LU TC H SH IFT FO RK R O LLER
D iam eter........................................................
AXLE SH A FT
N um ber of S plines.....................................
Diameter at Splines..................................
Shaft R u n -o ut..............................................
0.680” -0.685”
0.680” -0.685”
16
1.975” -1.980” (17201, 17221)
2.120” -2.125” (18201, 18221)
0.060”
16(19201)
22(19221)
2.245” -2.250” (19201)
2.295” -2.300” (19221)
0.060”
T O R Q U E S P E C IF IC A T IO N S (FT. LBS.)
Differential Case B o lt............................................
Support Case B o lt...................................................
Pinion Shaft N u t......................................................
Pinion Cage Cap S crew .......................................
Differential Bearing Cap B o lt...........................
Differential C arrier B o lt.......................................
Differential C arrier Stud N u t...........................
Differential Bearing Adj. L o ck .........................
Shift U n it....................................................................
Axle Shaft Flange Stud N ut (1/2 ” ) .................
Axle Shaft Flange Stud N ut (5/8 ” ) .................
90-105
90-105
130-150 130-150
400-600
500-700
115-125
160-175
350-425 350-425
160-175
—
220-240
220-240
160-175
160-175
35-45
35-45
50-60
50-60
90-110
90-110
CHEVROLET SERIES 70-80 H EAVY DUTY TRUCK S H O P M A N U A L