Getrag 290, NV1500, NV3500 & NV3550 Shafts

The Getrag 290, NV-1500, 3500 and 3550 where primarily used with GM, Dodge, Jeep and Isuzu vehicles. In this post we will discuss the different shafts and option available. We have also added some pictures below. We will continue adding pictures to this post specific to its topic. Remember you can click on any picture to make it larger.

When you see a part listing that says "no groove" it means that the part has no grooves at all. Grooves are sometimes used as an identification feature. For example in the picture below of the Getrag 290 Input shaft if you look closely at the end of the shaft you will see three grooves.

Input Shaft
26 Tooth, Chevy 1980-1990 (33mm bearing)
26 Tooth, Chevy 1991-1995 (23mm bearing)
26 Tooth, Chevy 1996-Up
26 Tooth, Dodge 1994-1996
35 Tooth, Dodge 1997-Up

Main Shaft - Full Size
2 WD, Getrag 1991-1993
4 WD, Getrag 1988-1990
4 WD, Getrag 1991-1993
2 WD, Getrag World Class 1993-Up
4 WD, Getrag World Class 1993-Up

Cluster Shaft
No Groove 1994-1996
No Groove 1997-Up
0.25" Groove 1994-1995
0.25" Groove 1996-Up, NV3500 S10 Only
1" Groove, 1" End 1988-1990
1" Groove, 1.1875" End 1991-1993
1" Groove, 1.300" Large Ends 1996-Up

New Pics for the G4A-EL / 4EAT-G

Just posted! New parts pictures for the G-4EAT.

There is a Low/Reverse and Forward Sprag, here are the options available.

Low Overrunning Sprag with Outer Race
- 7 Lugs 0.520" Thick
- 7 Lugs 0.550" Thick
- 9 Lugs 0.520" Thick

- Forward Sprag

Moving on to the Drums and Clutch Hubs. We will detail the different options here and keep posting pictures as they become available.

Drums
- 3-4 Clutch with 16 Tooth Steels
- 3-4 Clutch with 30 Tooth Steels and 1.515" Overhaul Height
- 3-4 Clutch with 30 Tooth Steels and 1.655" Overhaul Height
- Reverse (20 Spline); 3 Forward Clutches, 12 Tooth Reverse and 32 Tooth Forward Steels
- Reverse (20 Spline); 4 Forward Clutches, 12 Tooth Reverse and 16 Tooth Forward Steels
- Reverse (20 Spline); 4 Forward Clutches, 32 Tooth Reverse and 32 Tooth Forward Steels
- Reverse (22 Spline); 1986-1987 and 1988-1992
- Band Drum with 2 Clutches (Square Tooth Frictions)
- Band Drum with 3 Clutches and 1.50" Band (Square Tooth Frictions)
- Band Drum with 3 Clutches and 1.75" Band (Square Tooth Frictions)
- Band Drum with 2 Clutches and 1.50" Band (Pointed Tooth Frictions)

Clutch Hub
- Low Clutch with Inner Race (10 or 39 inner tooth)

Brake Bands
- Non Turbo 1.50" Wide
- Non Turbo 1.50" Wide High Energy
- Turbo 1.75" Wide




(G4EAT, GF4A-EL, G4A-HL)

Update! 09G Transmission Frictions

I received word about a month ago that the 09G, a/k/a Aisin Warner TF60SN, could come with 52 or 60 tooth frictions in the K2 clutch pack.

My guess is that it will depend on the vehicle model like the Nissan RE5R05A where some vehicles use the 50 tooth reverse frictions or the 40 tooth reverse frictions like the Titan, Armada and QX56.

This is just a guess. As soon as more information is available it will be posted on this blog. If you have any comments or information regarding this post please comment.

The GM 4T65-E Automatic Transmission Parts

The 4T60E and The 4T65E share many parts; for example the brake bands as pictured below. But there are parts that are unique only to the 4T65E and those are the ones we will talk about in this post.

The Sonnax Sure Cure Valve Body Kit works from 1997 and up. Superior makes the Shift Correction Package (97-Up) and the Shift Kit from Transgo (97-04) are also available.

The hy-vo chain from Morse Tec illustrated below is 1/2 inch wide with D pins and mouse ear links and comes with two chains in the box. There is also a 1" wide racing chain (97-Up both).

The forward (rear), reverse (front) and 2-1 coast (center) brake band are the same for all years. From 2001 and up there is a hi-energy version in stock.

The Clearance Kit for 2nd, 3rd and forward clutch packs contins a snap ring (0.082"), 2 second clutch steels (0.090") and 5 third clutch friction/steel combination plates with external teeth.

How to Identify the Part Number of My ZF Transmission?

A very common question when a client orders specific transmission parts for the ZF I usually ask them for the year, make, model, vin number of the vehicle and the part number of the transmission. Then the question is where is the part number at? The number is a 10 digit number on the tag of the transmission.

The tag is either attached to the main housing or as part of the casting of the main housing like in the picture below. In this tag the first line is the serial number, the second number the part number of the transmission and the third number down is the model number (ZF6HP26).

The number needed is the part number which usual is 10 digits. In this case the part number is 1068 010 045. This number enables us to determine the correct parts for this particular unit. For example the ZF4HP20 has about 6 different part numbers for solenoid kits. With the 10 digit part number off the tag of the transmission the right one can be selected and you receive the right part the first time.

This is the reason why it is so important to have this information. The more information available the better it ensures that you receive the right part the first time.