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Transmissions & Components<br />
Tools & Books<br />
Manual Transmissions<br />
Differential Components<br />
12581400<br />
F23 Manual Transmission ‘05-’07 Cobalt/G5 (not<br />
shown)<br />
• Non-supercharged applications<br />
• 3.84 ratio<br />
19213181<br />
T-56 Transmission K<strong>it</strong> (not shown)<br />
• For Big-Block and Gen I and II Small-Blocks<br />
• Gear ratios: 1st: 2.66, 2nd: 1.78, 3rd: 1.30, 4th: 1.00,<br />
5th: 0.74, 6th: 0.50<br />
• Includes shifter, no handle<br />
19213178<br />
T-56 Transmission K<strong>it</strong> (not shown)<br />
• For Gen III and IV Small-Blocks (LS series)<br />
• Gear ratios: 1st: 2.66, 2nd: 1.78, 3rd: 1.30, 4th: 1.00,<br />
5th: 0.74, 6th: 0.50<br />
• Includes shifter, no handle<br />
Controllers and Accessories<br />
A. 12497316<br />
Transmission Controller, 4L60-E, 4L65-E, 4L80-E<br />
and 4L85-E Automatic<br />
• Required when using a GM electronically controlled<br />
automatic transmission (see page 297)<br />
• Includes wiring harness, software and connector for<br />
lap-top <strong>com</strong>puter<br />
• Controller allows full programming of shifting, as well as<br />
part-throttle, wide-open throttle and shift firmness control<br />
• Comes pre-programmed—simply enter rear tire diameter<br />
and axle ratio<br />
• Wiring harness P/N 124894 included<br />
19212657 NEW<br />
Transmission Controller, 4L60-E, 4L65-E, 4L80-E<br />
and 4L85-E Automatic (not shown)<br />
• Required when using a GM electronically controlled<br />
automatic transmission (see page 297)<br />
• Includes wiring harness, software and connector for<br />
lap-top <strong>com</strong>puter<br />
• Controller allows full programming of shifting, as well as<br />
part-throttle, wide-open throttle and shift firmness control<br />
A Transmission Controller, 4L60-E, 4L65-E, 4L80-E and 4L85-E Automatic<br />
B<br />
4L60/700R4 Transmission Swap K<strong>it</strong><br />
Engine Lift Bracket K<strong>it</strong><br />
G<br />
Piston<br />
Engine Oil Primer<br />
H<br />
I<br />
E. 88958682<br />
Torsen Differential<br />
• Used in GM 4T65E Racing’s FWD drag racing programs<br />
• Tested to 900-plus horsepower<br />
• In drag-race style, straight-line acceleration runs, this<br />
results in a close to ideal 50/50 power spl<strong>it</strong> to both<br />
drive wheels<br />
• In cornering, while accelerating out of a turn, the Torsen<br />
biases power to the outside wheel, reducing insidewheel<br />
spin<br />
• Provides constant and infin<strong>it</strong>ely variable drive<br />
• Power is transferred automatically w<strong>it</strong>hout the use of<br />
normal friction<br />
• Extremely strong and durable, because <strong>it</strong> is gear operated<br />
• No plates or clutches that can wear out<br />
• Comes w<strong>it</strong>h new pinion gears already loaded<br />
F. 12498974<br />
8.625” Differential Cover<br />
• Heavy duty cast-aluminum differential cover to f<strong>it</strong> your<br />
CK 1500 series truck<br />
• Doubles the fluid capac<strong>it</strong>y of the differential allowing<br />
<strong>it</strong> to run cooler and ultimately extending the life of<br />
the differential<br />
• Be sure to add the proper amount of fluid, see instructions<br />
Tools<br />
G. 12363238<br />
Engine Lift Bracket K<strong>it</strong><br />
• Bolt to the ends of cylinder heads for secure removal<br />
or installation<br />
• Contains two 7/16" thick brackets<br />
NOTE: Must use w<strong>it</strong>h Grade 5 or higher bolts.<br />
H. 12364087<br />
Piston Stop<br />
• Helps pos<strong>it</strong>ively locate piston at Top Dead Center (TDC)<br />
during camshaft degreeing<br />
• Made from brass w<strong>it</strong>h drilled center to vent cylinder<br />
pressure<br />
• Screws into spark plug hole<br />
Tools & Racetrack Accessories<br />
B. 24502513<br />
4L60/700R4 Transmission Swap K<strong>it</strong><br />
• Adapts the 4L60 or 700R4 automatic transmission<br />
(non-electronic version) for use in early-model vehicles,<br />
w<strong>it</strong>h or w<strong>it</strong>hout an engine management <strong>com</strong>puter<br />
• Includes instruction sheet, throttle valve spring for<br />
carbureted engines, a normally-closed fourth-gear clutch<br />
sw<strong>it</strong>ch and wiring connector for the torque converter<br />
C. 12563532<br />
Crankshaft Spacer<br />
• For use w<strong>it</strong>h Gen I style (Turbo 350/400, 700R4,<br />
4L60, 4L60E and 4L85E) transmission on Gen III- and<br />
Gen IV-engines<br />
• Needs regular flat flexplate P/N 1255136 and six torque<br />
converter bolts P/N 11589040 or starter will not reach<br />
• Also requires longer bolts P/N 12563533<br />
D. 19154766<br />
Transmission Adapter K<strong>it</strong><br />
• Allows installation of Gen III/IV style 4L60E/4L65E<br />
transmission onto Gen I and II engine<br />
• Includes spacer ring, shims, dowels, bolts and flexplate<br />
• Works on 1-piece rear main seal engines only<br />
C<br />
Crankshaft Spacer<br />
D<br />
Transmission Adapter K<strong>it</strong><br />
Rocker Arm Ratio Checking Tool<br />
J<br />
I. 12368084<br />
Engine Oil Primer<br />
• Lubricates bearings prior to start-up of new or rebuilt engine<br />
• For use on all Gen I and Gen II Chevy Small-Block V-8, all<br />
Big-Block V-8 and all V-6 engines<br />
12346004<br />
Pipe Sealant (50cc, not shown)<br />
• GM-re<strong>com</strong>mended sealant<br />
J. 88958663<br />
Rocker Arm Ratio Checking Tool<br />
• Checks 1.5 and 1.6 aluminum rocker arm ratios<br />
• For use only w<strong>it</strong>h GM Performance Parts aluminum<br />
rocker arms<br />
NOTE: Intended for use by racing sanctioning bodies.<br />
K. 12364088<br />
Valvetrain Organizer Tray<br />
• Keeps your engine’s valvetrain <strong>com</strong>ponents correctly<br />
organized<br />
• W<strong>it</strong>h provisions for rocker arms, pushrods, adjusting<br />
nuts and lifters<br />
E<br />
Torsen Differential<br />
F<br />
8.625" Differential Cover<br />
Valvetrain Organizer Tray<br />
K<br />
298 Buy online at www.gmperformanceparts.<strong>com</strong><br />
Available for purchase online at<br />
gmperformanceparts.<strong>com</strong><br />
299