Thread: L322 madness

Originally Posted by Laurie

Chay
We looked at the 6L80/90E a while ago. Would need a custom bell housing or adaptor plate. Then probably a modified ring gear and starter motor.
Big Pluses are:
cheap to obtain
low first gear 4:02
plenty of aftermarket goodies
strong box

The negatives are:
Output shaft spline/ housing to transfer box different ? Could adapt ! $$$
Length
Electronics again: could use a stand alone system, BUT it's a Ffrr I just want it to work the same as before

Laurie

these are all very common problems when doing an auto conversion, especially with this gearbox. I have just contacted a trans conversions specialist in the states and waiting for a response, who custom makes interface modules for this box to a variety of vehicles. (if it can be done for the latest cruisers and patrols why not the rangies, especially between 2 GM boxes with Can Bus of the same era)

6L80/6L90 Conversion Frequently Asked Questions

The spline adaptor boxes for the x-fer case would need to be developed but is quite common, apparently the lenght of the 6l80 is less than the 5l40? correct me if im wrong, "The 6L80E has an overall case length of 590mm/23.23" without the extension housing." this could be beneficial in leaving the transfer in the original position.

Nissan Patrol V8 Engine Conversions using the GM automatic transmissions

regardless of what/if a different box will be put it, adapters are going to need to be made.

anyway, this is just all a big ball of hope...and thats all we can do at this point! haha

The GM boxes lengths are:

6L80E 23.5 "

6L90E 25.0"

I questioned a few transmission ecu builders/modifiers in the US a while ago. At that stage the market was for GM, Chev and Jeep conversions only ! obviously this is where the big sales are.

The 6HP26 is 30mm shorter than the 5L40E


Laurie

Is it the 2.7 HDi landrover/PSA/Ford engine that is fitted to these. If so, what about the 6spd auto ford territory gearbox. It's readily available and should bolt right up.

You'd need an electronic controller to shift it though.

seeya,
Shane L.

No, the 2.7 in the D3, c6, territory ect has the ZF 6hp24. And these ZF boxes have a mechatronics unit (valve body, sensors and ECU all in one internal unit) so there is no way of using another controller. The GM boxes are controlled by an external ECU so technically something can be made, if it worth it is another Q. The idea of using a box and ECU from the same generation would be the best bet - although there are several differing CAN packet standards even from the same erea.

The attraction of the ZF is it is what is fitted to the post 2004 BMW X5 with the same engine, theoretically fit up should be easier.