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Makco Distributing Kit Component Guide

Deluxe Kits (Super) - Includes: overhaul kit, friction clutch plates, standard steel plates, filter, band, modulator (if required), bushing kit (or popular bushings) & sometimes popular washers.

Master Kits (w/ Steels) - Includes: overhaul kit, friction clutch plates & standard steel plates.

Banner Kits (w/o Steels) - Includes: overhaul kit & friction clutch plates.

Overhaul Kits (no Clutches) - Includes: paper gaskets, O rings, lip seals, metal clad seals and sealing rings.


>>>>>Click here for Transmission Illustration<<<<<

3T40, 125, 125C
Automatic Transmission Parts


Deluxe Kits (Super Kits) Image Price    
64008B Deluxe Kit, 125/C 85-UP
Includes: overhaul kit, friction clutch plates, standard steel plates, filter, band, modulator (if required), bushing kit (or popular bushings) & sometimes popular washers.
  $ 114.79  

Transmission kits Image Price    
64006B Master kit, 125C L1984-UP
Includes: overhaul kit, friction clutch plates & standard steel plates
  $ 98.49  
64006 Master kit, 125 / 125C 1980-84E
Includes: overhaul kit, friction clutch plates & standard steel plates
  $ 84.05  
64004B Banner kit, 125C late 1984-UP
Includes: overhaul kit, friction clutch plates
  $ 71.42  
64004 Banner kit, 125 / 125C 1980-84 early
Includes: overhaul kit, friction clutch plates
  $ 66.34  
64002C Overhaul kit, 125 / 125C, COMBO 1980-UP Cork pan gasket
…Basic overhaul kit includes, paper gaskets, O rings, lip seals, metal clad seals and sealing rings. Common vender / brand TransTec
  $ 30.54  

Bands Image Price    
B64022A Band 125/C flex 1982-96
New band, BorgWarner … Wide
  $ 13.57  
B64022B Band 125C 1994-UP
New band, BorgWarner … High energy Black Lining
  $ 13.57  
N64022A Band 125 / 125C flex wide
New band, value import …
  $ 7.26  

Bushings Image Price    
64030 Bushing kit, 125,125C

  $ 21.46  
64032 Bushing 125 Converter Hub 1980-81

  $ 1.79  
64032B Bushing 440-T4 / 4T60E / 4T65E Converter Hub
125C Lock Up converters
  $ 1.17  
54036A Bushing 200 / 325-4L / 125C stator support front
also 2004R / 440 / 4T65E stator support front
  $ 0.86  
64044 Bushing 125 / 125C Low / Rev housing
center support & rear planet 125, 200-4R / 3254L Overdrive Planet Bushing
  $ 1.53  
64045 Bushing 125 / 125C Driven Sprocket Support

  $ 4.22  
64046 Bushing 125 / C direct drum (REAR)

  $ 2.34  
64046B Bushing 125 / C direct drum (Front)

  $ 2.27  
64050 Bushing 125 / 125C Input gear
front ring gear
  $ 1.88  
64052 Bushing 125 / 125C Reaction Sun Gear Shaft

  $ 2.49  
64060 Bushing 440-T4 / 4T60E case
extension housing 125 / 125C Final drive gear
  $ 1.04  

Clutch plates Image Price    
64106 Friction, 125 / 125C, Forward / Direct clutch, 1980-Early 84
.080 …… Common brand - Borg Warner
  $ 2.71  
64114 Friction, 125 / 125C Low / Reverse, 1980-Early 84
.080 …… Common brand - Borg Warner
  $ 3.10  
64106A Friction, 125C, Forward / Direct clutch, Late 1984-96
.069 …… Common brand - Borg Warner
  $ 2.71  
64114A Friction, 125C Low / Reverse clutch, Late 1984-96
.090 …… Common brand - Borg Warner
  $ 2.74  
64126 Steel, 125 / 125C, Direct clutch, Thick
.090 …… Common brand - ALTO
  $ 1.66  
64128 Steel, 125 / 125C Forward, thin, 440T4 Input, 85-UP.
.076, 4T60E Input 1994-UP, 4T65E Input 1997-up (thin) …… Common brand - ALTO
  $ 1.49  
64129 Steel, 125 / 440T4 / 4T60E, Input clutch WAVED 85-UP
Waved plate …… Common brand - ALTO
  $ 1.38  
64134 Steel, 125 / 125C, Low / Reverse clutch, 1980-83
.080 …… Common brand - ALTO
  $ 1.66  
64126X Steel, 125 / 125C, Direct clutch, OVERSIZE
.100, Oversized …… Common brand - ALTO
  $ 5.48  
64134A Steel, 125C Low / Reverse clutch, 1984-96
.088 …… Common brand - ALTO
  $ 2.45  
64135A Steel, 125C Low / Reverse clutch, WAVED, 1984-96
.078 …… Common brand - ALTO
  $ 1.96  
64139B Steel module, 125C, 1984-96
Standard set of steel plates …… Common brand - various
  $ 29.66  

Filters Image Price    
64010 Filter, 125 / 125C
Common brand - SPX
  $ 6.69  
A64010 Filter, 125 / 125C
Common brand - Allomatic
  $ 4.26  

Gaskets & O rings Image Price    
64320 Gasket, 125 / 125C, valve body, upper & lower
Order 2 per unit
  $ 0.36  
64322 Gasket, 125C AUX.valve body, L84-96

  $ 0.19  
64324 Gasket, 125 / 125C, Case cover to case
Large outer gasket
  $ 1.54  
64322A Gasket, 125C auxillary valve body, 82-E84

  $ 0.84  
64322B Gasket, 125C auxillary valve body, 1987-96
Orange stripe
  $ 0.16  
64322C Gasket, 125C auxillary valve body, 1988-96
Blue stripe
  $ 0.22  
64379 Seal, 125 / 125C filter Seal, LATE

  $ 0.78  
64380 O-Ring, GM Input shaft, LARGE TCC O-Ring,
Fits 125C,440,4T60E,4T40E, 200C & 700 with small converters.
  $ 0.26  
54373A O-Ring, Detent cable, Early style O-Ring, 200 / 125 / 325

  $ 0.88  
54373B BOOT, Detent cable, 700R4 / 125C / 3254L
Late design, large bottom
  $ 0.58  
64300 Pan Gasket: 125 / 125C Bottom pan
OE type Cork gasket
  $ 1.25  
64301 Pan Gasket: 125 / 125C Side pan
Valve body cover, OE type Cork gasket
  $ 0.92  
64300F Pan Gasket: 125 / 125C Bottom pan
Updated Fiber gasket
  $ 2.82  
64301F Pan Gasket: 125 / 125C Side pan
Valve body cover, Updated Fiber gasket
  $ 2.06  

Sprags Image Price    
A64652 Sprag, 125 / 125C LOW roller clutch 1980-UP

  $ 15.46  

Metal Clad Seals Image Price    
64090 AXLE Stabilizer, 125 / 125C, Right side only
BUSHING TYPE
  $ 17.44  
84070 Seal, Front, 440 / 4T60E / 4T65E / 125 / 4T40 / 4T45E

  $ 1.70  
84076 Seal, Axle, 440-T4 / 4T60E / 4T65E Right side only,
125 series BOTH sides
  $ 3.53  
T64275 Axle stabilizer support, 125 / 125C, Bearing type
125 will fit both sides, 440T4 / 4T60E Passenger side only, TECKPAK # 75125LRB
  $ 29.24  

Solenoids Image Price    
74444 Case connector, 2 Prong
200C, 200-4R, 3254L, 350C, 700, 125C …. Common brands - various
  $ 3.20  
D64416B Switch, 125C govenor pressure, 46-50 PSI *Discontinued item
*AS AVAILABLE *Discontinued items
2 Blade ….
$ 0.00  
84425 Solenoid, 125C / 440-T4 / 325-4L TCC
Universal …. Common brands - Rostra
$ 17.62  

Thrust Washers & Bearings Image Price    
64200 Thrust washer kit, 125 /125C
Flat thrust washers, NO bearings
  $ 14.06  
64201A Bearing kit, 125 / 125C, 7 Bearings
Flat torrington / thrust bearings
  $ 28.41  
64226 Washer,125/C DIR DRUM TO SUP

  $ 0.62  
64232 Washer, 125 / 125C, FWD drum to Hub,
1.220 inch ID, Plastic, 1980-87
  $ 1.26  
64235 Washer, 125 / 125C, Front planet to hub

  $ 1.07  
64238 Washer, 125 / 125C, front planet to sen gear

  $ 1.02  
64244 Washer, 125 / 125C, Sprag to rear planet

  $ 0.64  
64278 Washer, 125 / 440T4 / 4T60E, Drive sprocket to case cover
1 7/8 inch OD, 1980-UP
  $ 0.54  
64281 Washer, 125, Driven sprocket, rear,
1980-81
  $ 0.50  
T64275 Axle stabilizer support, 125 / 125C, Bearing type
125 will fit both sides, 440T4 / 4T60E Passenger side only, TECKPAK # 75125LRB
  $ 29.24  

Transmission repair manuals Image Price    
64400 Transmission repair manual, 125C
ATSG automatic transmission repair manual, Disassembly, inspection and assembly sections. Diagnosis, testing and lot of pictures
$ 24.41  
64400H Technical manual *UPDATE 125C 1987-96
ATSG Update Handbooks will show many of the changes that were made for each transmission for the years listed. And will show the other parts that were affected by these changes. Update Handbooks DO NOT have Disassembly or Re-assembly sections
$ 24.41  

Valve body kits Image Price    
S64741RK Valve kit, TV / Reverse boost , 125C
Reduces delayed reverse by increasing reverse boost, …. Common vender is Sonnax # 75918-01K
  $ 33.04  
S64165 Superior Shift correction package 125 / 125C
1980-up To be installed during rebuild! Not a performance type kit
$ 29.94  
T64165 TransGo Shift Kits 125 / 125C 80-UP
TransGo # SK 125 Shift improvement / correction kit Not a performance type kit
$ 19.91  

Torque converters Image Price    
B14 Converter, 125 EARLY Non-Lu
11 inch diameter, without gear, without shroud, no drive on hub bushing, .824 inch pilot, 27 spline
1980-81 NON-LOCK-UP
  $ 86.82  
B21 Converter, 125C / 440-T4 Lock up s *Regular codes only
10 inch diameter, no drive on hub with bushing .824 inch pilot, 9 1/2 inch bolt circle w/ 3 mounting lugs 27 spline CLUTCH TYPE UNIT
125-C & 440-T4 , e-mail us complete code for proper ID
  $ 138.92  
B21C Converter, 125C / 440T4 , with Carbon or Woven clutchs
1st digit is F series, 2nd digit is the STALL speed
3rd digit of code clutch type # C, E, F, H, K, P, Q, V, e-mail us complete code for proper ID (many codes are special order)
also SOME 4T65E units (first code digit is a F )
  $ 167.85  
B21-FM8 Converter, 125C / 440-T4, with viscous dampened clutch
10 inch diameter, no drive on hub with bushing, .824 inch pilot, 9 1/2 inch bolt circle with 3 mounting lugs, 27 spline, unit contains a viscous dampened clutch
Cadillac application, e-mail us complete code for proper ID
  $ 167.85  
B26 Converter, 125C *Clutch omitted, Lock-Up stator but NO LU wiring
(Clutch Omitted)
10 inch diameter, no drive on hub with bushing, .824 inch pilot, 9 1/2 inch bolt circle with 3 mounting lugs, 27 spline Unit to be identified by stall codes: FDO, FJO etc...
Transmission will not have the electrical wiring for the lock-up system
  $ 142.49  

Hard parts Image Price    
A64700 Chain, 125 / 125C (NARROW) 1980-83
42 links, 3/4 inch wide (HV019) 84 pitches
  $ 40.51  
A64701 Chain, 125 / 125C SNUBBER

  $ 9.62  
A84700A Chain, 125C 80-UP, 440T4 / 4T60 7/8 inch wide
Round pin 7/8 inch wide 84 Round pins 42 links 1 blue link
  $ 40.76  
A64683 Gear, 125 govenor drive gear
…. Common brands - Tri Component
  $ 10.58  
T64275 Axle stabilizer support, 125 / 125C, Bearing type
125 will fit both sides, 440T4 / 4T60E Passenger side only, TECKPAK # 75125LRB
  $ 29.24  

Pumps Image Price    
A64531B Rotor kit, 125C, 15 Spline

  $ 30.83  
A64532A Rotor, 125C, 15 Spline (.708 inch thick)

  $ 5.46  
A64533 Pump Vanes, 125 / 700R4 / 4L60E / 2004R,
1982-up, order 7-13 per unit as needed
  $ 0.62  
A64538 Pump RING, 125 / 125C
Order 2 per unit
  $ 1.79  
A64671AA Pump shaft, 125 conversion,
To replace OLD 20 spline rotor with new design 15 tooth rotor, you need to use this shaft.
  $ 9.26  
A64671B Pump shaft, 125C, 1982-84 +-
Thick washer on shaft
  $ 9.26  
A64671C Pump shaft, 125C, 1984-up
Thin Steel Race / washer on Shaft.
  $ 17.14  

Servos & Accumulators Image Price    
D64927 Piston, 125 / 125C, 1-2 Accumulator

$ 10.14  
A64906 Spring, 125 / 125C, intermediate servo cushion,
Cushion spring, replaces broken OE spring
  $ 0.51  
A64926 Spring, 125, 1-2 accumulator, PURPLE
Up to 1985
  $ 0.89  
A64952K Valve & Spring, 125 / 125C, 3rd accumulator CHECK VALVE
(IMPROVED DESIGN)
  $ 8.43  

Drums Image Price    

Miscellaneous Items Image Price    
T54450B TeckPak adjustable detent cable, GM 125, 200C, 325, 3254L, 440-T4 short
Fits 125, 200C, 325, 3254L, 440-T4 26 cable w/ 31 wire
$ 10.26  
T64450A TeckPak adjustable detent cable, 125-Long
Fits 125, 58 inch Inner wire length
  $ 13.23  
A44839 Transmission MAGNET, Square
Magnet fits in most pans
Traps fine metal shavings
Approx 1" L x 1" W
$ 0.98  
T64275 Axle stabilizer support, 125 / 125C, Bearing type
125 will fit both sides, 440T4 / 4T60E Passenger side only, TECKPAK # 75125LRB
  $ 29.24  
M463SA Ground strap, 14 inch long
Missing or bad ground straps can cause many problems.
A must check item on every rebuild.
$ 2.04  
M463SB Ground strap, 42 inch long
Missing or bad ground straps can cause many problems. A must check item on every rebuild
$ 5.24  
A44839B Transmission MAGNET, round
Round, thick (.250" +-) Magnet fits in most pans to trap fine metal shavings
$ 0.87  
M465TG Assembly Goo - Green by Lubegard
DR. TRANNY ASSEMBLEE GOO is formulated for use as an assembly aid and lubricant for virtually any assembly application (including engines!). It provides lubrication and helps facilitate the assembly process, by holding components such as needle bearings and hydraulic seals in place. Simply apply to O-rings, seals, bearings, gaskets, sealing rings, bushings, thrust washers and much more. No water/soapy residue to contaminate new automatic transmission fluid
  • Dyed green to prevent misdiagnosing leaks
  • Will not melt at shop temperatures
  • Not harmful with prolonged skin contact
  • Will not clog filters
  • Dissolves quickly at operating temperatures
  • Proprietary green formula contains rust inhibitor
  • Compatible with all transmission fluids
  • $ 7.44  

    Tools Image Price    
    T-0015 Tool, LIP Seal installer
    Universal Transmission - Lip Seal Installer. Helps to roll most lip seals in without damage.
    $ 28.12  
    T-1079 Tool, Double pointed scribe, 9 1/4" long
    Heat treated high carbon steel picks. Removes O rings, gaskets, springs and great for removing snap rings.
    Straight and 90 degree angle points.
    $ 15.53  
    T-0280-C Tool, Bushing cutting chisel
    Cuts using the Curl Cut method. Also known as a Tailpipe cutter.
    $ 29.22  
    Caliper Electronic Digital Caliper 6" or 150mm -- On Special!
    Measurement in both SAE (inch) or Metric (mm) with conversion
    Measure range: 0 - 6" (0 - 150mm)
    Measurement types: internal dimension, external demension, depth and steps
    LCD Display
    Resolution: 0.0005"/0.01mm
    Accuracy: 0.001"/0.02mm (< 4"/100mm measurement)
    Repeatability: 0.0005"/0.01mm
    Maximum measuring speed: 60"(1500mm)/sec.
    Measuring system: linear capacitive
    Working temperature: 41 - 104F (5 - 40C)
    Influence of humidity: Not important under 80% of relative humidity
    Power: One 1.5V SR44 button Cell (included)
    Brand New
    Generic, non-branded
    $ 38.58  

    Sonnax Items Image Price    
    S64741RK Valve kit, TV / Reverse boost , 125C
    Reduces delayed reverse by increasing reverse boost, …. Common vender is Sonnax # 75918-01K
      $ 33.04  


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    Makco Distributing, Inc. - 4255 Bryson Blvd., Florence, AL 35630
    Phone 256-767-2840 - FAX 256-767-2841
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    We recommend that these transmission parts and accessories are installed by an automotive professional, with the proper tools and training.
    These parts are for professional use, these are not retail packaged products.
    Please go to the Sales Information page and read our Limited warranty and Company policy before you order.
    Parts that are pre-packaged and sealed are NOT RETURNABLE once they are opened.
    Errors in description, photography, price, or typographical errors are subject to correction.
    You must be 18 or older to order from this site.


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