ZF 5DS25-2 on display

I agree Doc, send it down here and I will put it to good use.

What was the main difference between the 5DS25-1 and the 5DS25-2?

Was it mainly just the bell housing face that got larger and the crown wheel that was flipped?
 
Are you SURE about that??

Ron
Yes,

Input shaft is ABOVE the output shaft/drive yokes. A GT40 has the input BELOW to lower the engine in the chassis. The ZF was "flipped" (as well as other changes) for the Pantera application to allow use of the standard Ford oil pan sump rather than a special unit for ground clearance (and cost!).
 

Kirby Schrader

They're mostly silver
Lifetime Supporter
Supporter
Having just had my Pantera race car ZF apart, I agree.


Yes,

Input shaft is ABOVE the output shaft/drive yokes. A GT40 has the input BELOW to lower the engine in the chassis. The ZF was "flipped" (as well as other changes) for the Pantera application to allow use of the standard Ford oil pan sump rather than a special unit for ground clearance (and cost!).
 

Randy V

Admin
Lifetime Supporter
Ever wonder why the ZF 6 speed (S6-40) was used in the Corvette only from 89-96?
(Other than the 97 Corvette coming with an amidships transmission)
 

Ron McCall

Supporter
Yes,

Input shaft is ABOVE the output shaft/drive yokes. A GT40 has the input BELOW to lower the engine in the chassis. The ZF was "flipped" (as well as other changes) for the Pantera application to allow use of the standard Ford oil pan sump rather than a special unit for ground clearance (and cost!).
Look a bit closer at the ring gear.
Hint...Think about which side the vent is on in a Pantera....
Ron
 

Markus

SPRF40
Lifetime Supporter
I agree Doc, send it down here and I will put it to good use.

What was the main difference between the 5DS25-1 and the 5DS25-2?

Was it mainly just the bell housing face that got larger and the crown wheel that was flipped?

Ryan, Andy,
I'm afraid that won't work > you would loose all the oil.....:laugh:
 
Lloyd Butfoy has one of those factory-produced cutaway gearboxes and displays it at the SEMA show and in his shop.

The /1 and /2 gearboxes are philosophically similar but have almost no shared parts. The /2 is improved in almost every way. The case is even larger (except in length). The /1 differential is a known weak point, and it is common to install the completely different design, but fortunately same size /2 version when repairing a broken /1 unit.
 
hey guys
if for anyones interest..
have a refurbished 5 DS-25 (0?) for sale, not used since then, so quite new.
It was told my by ZF, due to the fact no type plate is attached, that it must have been built in the USA
sale it for best offer..
 

Randy V

Admin
Lifetime Supporter
Oli - You have not been following the rules and not responding to PMs...
In the slammer you go pal.
 
I agree Doc, send it down here and I will put it to good use.

What was the main difference between the 5DS25-1 and the 5DS25-2?

Was it mainly just the bell housing face that got larger and the crown wheel that was flipped?
The input shaft and gears are the main difference, All the -2 parts can be installed in a -1 case.
Bearings sizes and synco cones are also very different.
 
But it is NOT a "GT40" gearbox, it's upside down for that application!
I will make it a GT40 gearbox, Switch the Ring gear side, Plug a few holes, drill a few holes and change a few oil tubes.
install the correct top lid. and maybe some new drive axles.... Bingo...
 
Top