Extreme PLUS Rebuild of GM 4L60 or TH700 4 Speed Automatic (includes Torque Converter)

$6,559.88 inc. GST $6,231.88 inc. GST

Due to high demand this product's lead time is 23 weeks.

Each Heavy Duty Extreme Plus Transmission from Wholesale Automatic Transmissions is built to perform and comes fully dyno and quality tested with a written report to ensure trouble free installation. Conditions apply to refundable deposit – see Description.

This will also add the following products to your cart:

  • Core Refundable Deposit - $1,500.00
SKU: REBUILD-EXTREME-PLUS-TH700 Categories: , , Tag:


This product can only be delivered to a business that can unload a pallet from a truck. This is a strict rule imposed by our freight companies.


All of Wholesale Automatic Transmissions heavy duty Extreme Plus Rebuilds are meticulously built to handle not only to toughest of conditions, but also takes into consideration vehicle weight, larger tyre size, extreme towing conditions and most power upgrades. Each transmission has been fully stripped, cleaned and examined, all surfaces as required have been re-machined, every gasket, seal and ring have been replaced, all clutch frictions and bands where applicable have been replaced and upgraded depending on requirements. Valve bodies have been upgraded and oil filter replaced. Bushes, bearings and thrusts have either been upgraded, modified or replaced depending individual requirements. Torque converters have been rebuilt and upgraded. Please note that in some applications we have upgraded billet torque converter options available please see below in the “”Customers also bought these”” section to see if any of these torque converter upgrades are more suitable.

This transmission has also had its internal shafts planetary assemblies, hubs and drums cryogenically treated. This means that these parts have gone through a somewhat complex and technical process, cryogenic hardening offers several benefits, one of which is increased strength. When the temperature of metal drops, its atoms rearrange in a manner that increases the metal’s martensite and decreases the metal’s austenite. Martensite, of course, is an incredibly hard crystalline structure, whereas austenite is soft and ductile. Cryogenic hardening is able to make metal objects and workpieces more resistance to wear and tear. Metal doesn’t just become harder through cryogenic hardening – it becomes tougher and more resistant to wear. As a result, cryogenic hardening is performed to increase the usable life of metal objects and workpieces. Furthermore, cryogenic hardening offers stress relief of metal.

Each transmission is meticulously dyno-tested with a written report showing performance.

All transmissions come with a 12 month unlimited kilometer Australia wide warranty. Please note the warranty does not include any parts used in competition vehicles, or any off road events. Repairs & replacements under this warranty are subject to these conditions: whether the parts are repaired or replaced is at the option of Wholesale Auto’s. All claims must be returned to Wholesale Automatics. This warranty does not cover loss of vehicle use, time inconvenience, tow or recovery or any other damages, these costs are the customers. Goods must be returned to Wholesale before any claim will be processed.

This Rebuild Includes

Extreme Plus Rebuild of GM 4L60 or TH700 4 Speed Automatic (includes Torque Converter). Kit includes:

– Deep Cast Transmission Pan

– Nomad or Extreme Valve Body

– Billet Servo

– High Output Input Shaft and Drum

– Double Kiln Bronzed Torque Converter

– 13 Vane High Volume Pump Rotor Set

– Hardened Pump Rotor Rings

– High Rev Pump Spring

– Beast Reaction Shell

– Wide 2-4 Apply Band

– Tunnel Aligned Case

– Remachined Channel Surface

– Z-Pak 3-4 Clutch Kit

– Cryogenically Treated

– Pre-Dyno Tested With Report

– High Temp Epoxy Enamel with High Gloss Finish

The Rebuild Process

Well this is what most of them look like in the beginning before we start to dismantle the unit. The whole process from this stage to the final coat of paint will take four days working flat out while a standard unit can be built in one day.

This shot above shows almost everything that is used to build the EXTREME 700 with only the converter and heavy duty sprag race missing. As you can appreciate we tend not to itemise the contents.

From left to right we have a second hand set of frictions, a brand new set of standard frictions and on the far right is the treated heavy duty set of frictions that are only used in the EXTREME transmissions.

This photo shows some of the machine work that is done during the construction of the EXTREME transmissions.

Machining and resizing the front pump half. These are another item that never seem to be nice and flat.

Here is a shot of the two pump halves with the new high Volume 13 vane pump assembly with slide and the heavily modified o’ringed valving units that are used. Notice the newly machined surfaces on both halves.

Machining the valve body flat is possibly not one of the most important tasks that we undertake with the EXTREME transmissions but it is certainly part of the Blue Printing process that is undertaken.

This photo basically shows the valve body after it has been completely stripped down and made ready for the machine work and valve body updates that are added to bring the unit up to scratch.

The 2 – 4 band servo on the left is the standard 553 unit and on the right is the imported 093 unit that we use, it has almost double the clamping force of the standard unit.

The final assembly of the newly modified servo unit with new servo piston and internal modifications done.

This is a Turbo 700 having is lower case machined dead flat as they are NEVER flat. The machine used was specially built for us as the surface is so large on many transmissions, milling such a large surface area will always distort the case as it builds up heat.

We stopped machining this case half way though to show why it is so important to machine the bottom of the case. You can see the centre section that is yet to be cleared, about another 5 thou should do it.

This shot shows a Turbo 700 case having its forward mounting surface ( Bell Housing ) machined square to the alignment of the transmission tunnel. The lathe that we bought to do this job weighs over 7 tons and is over 14 feet long.

Another photo but from a different angle of the transmission case being realigned.

This shows what our Turbo 700 hydraulic unit looks like with the remaining electronics removed and our EXTREME valve body fitted.

It takes two days just to paint the transmission with two coats of under coat and two of gloss black.

This is a photo of one of our EXTREME Turbo 700 hydraulic units that has been fitted with a Nissan Patrol adapter unit.

Another photo of one of our Extreme 4 wheel drive Turbo 700 transmissions. This time we picture an 80 series Toyota Land Cruiser transfer case bolted up to a Turbo 700 with our new inhibitor switch kit mounted to the side of the transmission.

All of our Extreme transmissions come standard with Kiln Bronzed and Micro Balanced converters.

EXTREME Turbo 700 converter that has been double kiln bronzed, heavy duty bearings and balanced. We have both a lock up and non lock up version of this converter.


Refundable Deposit Conditions

This transmission is sold on a changeover basis. The transmission you return to Wholesale Automatics must be suitable for rebuilding. If the transmission is returned with significant damage to shafts, drums, gears, case, valve body (in other words, ‘hard parts’) or has extensive rust ingress then all or part of your refundable deposit will be kept to cover the replacement parts.

8 Great Colour Options to Choose From!

Extreme Rebuild Colours