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Clutch Drums
205646 - 10 Clutch Drum and Hub
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ATI's aluminum drums are made of treated T-6 aircraft
aluminum, eliminating the need for steel bushings and
sleeves that can expand under heat and come loose, ultimately
causing transmission failure.
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Equipped
with Torrington bearings |
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Triples
clutch life |
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Lowers
ET |
The Aluminum Advantage!
Remember! The forward drum rotates at engine RPM at all
times. The direct drum goes from spinning twice engine
RPM in low gear to stopped on the 1-2 gear change and
stopped to engine RPM on the 2-3 gear change. Aluminum
weighs one-third the weight of steel. The
weight difference is a performance must...less abusive
on the sprag and enhances clutch life greatly. |
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Powerglide Clutch Drums
| Drum
Material |
Description |
Weight |
Part
# |
Price |
ALUMINUM
ALUMINUM
ALUMINUM
ALUMINUM
ALUMINUM
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DRUM WITH BEARING - NO PISTON
ASSEMBLY, 5 CLUTCHES INSTALLED - NO CLUTCH HUB
ASSEMBLY, 6 CLUTCHES INSTALLED - NO CLUTCH HUB
ASSEMBLY, 7 CLUTCHES INSTALLED - NO CLUTCH HUB
ASSEMBLY, 10 CLUTCHES & HUB - 19 SPL/PG |
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5.22 LBS
5.24 LBS
5.25 LBS
6.94 LBS
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205660
205650
205651
205652
205655 |
$245.53
$351.04
$351.04
$390.68
$465.65 |
STEEL
STEEL
STEEL
STEEL
STEEL |
ASSEMBLY, 6 CLUTCHES
ASSEMBLY, 7 CLUTCHES
ASSEMBLY, 10 CLUTCHES
ASSEMBLY, 10 CLUTCHES (SUPERKIT)
ASSEMBLY, 10 CLUTCHES FOR SUPERGLIDE 4 - 27 SPLINE
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8.50 LBS
8.86 LBS
9.80 LBS
10.08 LBS
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205641
205642
205645
205646
205647 |
$223.66
$244.75
$437.82
$563.31
$549.00 |
| STEEL |
HI GEAR DRUM ONLY - NEW LIGHTWEIGHT OEM
REPLACEMENT WITH CHECK BALL & TEFLON BUSHING |
6.10 LBS |
207015 |
$98.40 |
Powerglide Clutch Drum Pistons
| Description |
Part
# |
Price |
PISTON - HIGH GEAR - .765 TALL - 7 CLUTCHES IN OEM DRUM
PISTON - HIGH GEAR - .795 TALL - 5 CLUTCHES IN ALUM DRUM
PISTON - HIGH GEAR - .690 TALL - 6 - 8 CLUTCHES IN ALUM DRUM |
205690
205700
205701 |
$39.00
$39.00
$39.00 |
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Aluminum
Clutch Drums
ATI has developed a new Aluminum Clutch Drum with
a steel insert for use in Powerglide transmissions.
This new steel insert accepts the OEM bushing and
will eliminate wear on the bushing surface inside
the drum and oil ring diameter to the stator support.
These areas could be damaged by racers selecting
neutral and shutting the engine down in excess of
8000 rpm at the end of the track. When the engine
stops turning, so does the trans pump which cuts
off oil fl ow to the transmission.
Remember, the drum accelerates from stop to engine
rpm on the gear change. Because an aluminum drum
is 1/3 the weight of steel, it has less mass to
accelerate thus extending clutch life. This new
drum improves performance in Competition Stock and
Super Stock cars, especially when using a lower
1st gear. It is also valuable for high HP cars that
leave the starting line at or below 4000 rpm on
the brake. |
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TH350 Aluminum Forward Drum
Recommended for Stock and Super Stock racers, this new drum
enhances engine acceleration, improves clutch life and
lowers ET. Weighing a mere 2.38 lbs, the drum can be used with
both OEM and Heavy Duty input shafts with either a Turbo
or PG spline. Must be installed by a qualified shop!
| Drum
Material |
Description |
Part # |
Price |
ALUMINUM
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FORWARD DRUM - INCLUDES 300M TURBO SPLINE SHAFT FOR 600 TO 850HP
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355270
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$729.00
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TH350 Clutch Drums
| Drum
Material |
Description |
Part
# |
Price |
ALUMINUM
STEEL
STEEL
STEEL |
DIRECT, HD 36 ELEMENT
SPRAG FOR HIGH HP* - STEEL INNER SLEEVE FOR TEFLON RING USE
FORWARD W/300M TURBO SPLINE SHAFT
FORWARD W/300M PG SPLINE
DIRECT, HD 36 ELEMENT SPRAG FOR HIGH HP
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355702
355259
355260
355682 |
$649.00
$235.00
$219.00
$369.00
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* The most common OEM part to break
T350 Billet Aluminum Pistons
Replace your 40 year old T350 cast pistons with an all-new, high quality set from ATI. Made from 6061 Billet Aluminum. Available individually or in a kit with all four! A must if using ATI's new T350 SFI SuperCase.
| Description |
Part
# |
Price |
PISTON - INTERMEDIATE - .985
PISTON - DIRECT - .838
PISTON - FORWARD - 1.22
PISTON - LOW/REV - 3.1
PISTON - SET OF 4 (INT, DIR, FWD & LOW/REV) |
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$89.00
$89.00
$89.00
$134.00
$395.00 |
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T400 “Severe Duty” Drum Kits
- Lightweight billet aluminum drum with billet aluminum piston
- 36 element intermediate sprag
- ATI manufactured outer race machined to accept OEM T400 clutches
- Machined pressure plate, snap rings, springs, and seals included
- Steel sleeve for Teflon ring use
- Full one year warranty on sprag failure when installed in an ATI built transmission!
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407056.........................................................$1095.00
• ATI’s Heavy Duty Center Support
• 6 Direct Clutches
• 4 Clutch Intermediate Pack (#405430)*
• Holds up to 8 direct clutches with .060 steels
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407058........................................................$1072.02
• Billet Steel Outer Sleeve
• ATI’s Heavy Duty Center Support
• 6 Direct Clutches
• 4 Clutch Intermediate Pack (#405430)*
• Holds up to 8 direct clutches with .060 steels
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407058 shown above
Also available:
| 5 CLUTCH INTERMEDIATE PACK |
405431 |
$66.95 |
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Severe Duty Drum for 4L80E, 4L85E and T400
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407059........................................................$1011.87
• Billet Steel Outer Sleeve
• 8 Direct Clutches
• 5 intermediate clutches
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T400 2-Speed “Severe Duty” Kit #407057
$1336.44
For high horsepower and ultimate
2-speed performance! Designed for high pressure applications, ATI's newest “severe duty” drum holds up to 8 direct clutches and
features a billet aluminum center support and a steel insert for Teflon rings. Improves venting for quicker
apply and release.
- Complete drum with 36 element sprag
- 8 Clutches and Steels
- Steel insert for Teflon rings
- Billet aluminum center support
- Teflon Rings Included
- Billet Aluminum Clutch Eliminator
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TH400 High Gear Direct
Drums
| Steel Direct Drums |
Part
# |
Price |
| DIRECT, WITH HD SPRAG, HD SNAP
RING,34 ELEMENT SPRAG & INNER RACE |
405681 |
$362.61 |
Aluminum Direct Drums Clutches & Steels Installed with High Lube Piston, Teflon Pump Rings, 34 Element Sprag & Race |
| 6 CLUTCH - BILLET ALUM HIGH-LUBE PISTON |
405724 |
$649.00 |
Aluminum Direct Drums with Piston, Teflon Pump Rings, 34 Element Sprag and Race |
| 5 CLUTCH |
405721 |
$553.43 |
| 6 CLUTCH |
405722 |
$599.00 |
Aluminum Direct Drums with Piston, Teflon Pump Rings and Inner Race Only |
| 6 CLUTCH |
405712 |
$549.00 |
Piston - Direct - for 5 Clutches .700 |
| BILLET ALUMMINUM - DIRECT PISTON FOR 5 CLUTCHES |
407084 |
$84.99 |
Thrust Washers
Application |
Description |
Part
# |
Price |
| TF727 |
THRUST WASHER FOR FORWARD DRUM (.061) |
725265 |
$2.89 |
| T400 |
BRASS THRUST WASHER - FWD DRUM TO FWD CLUTCH HUB |
405053 |
$4.99 |
Forward and Direct Spring Retainer
Application |
Description |
Part # |
Price |
| T400 |
SPRING RETAINER - FORWARD AND DIRECT DRUM - NEW |
405134 |
$6.82 |
| T400 |
SNAP RING FOR #405134 |
956102 |
$1.29 |
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