700r4 or TH400 with gear splitter?

[andyh1956]

A question to ask when considering a GV is "Can the gears be split PROGRESSIVLY"?
I've asked this question lots & GV dances around the answer.
Yes it will "Split" the gears, but if it won't split them "PROGRESSIVLY" then all you're adding is an OD box that will go from direct to OD & back again.
Also remember that the GV box is very small & uses it's own lube reservoir, not the trans lube & there's no way to cool it.
Not bashing GV units but it's a lot of $$$ to spend & not know the answers.

[DieselSJ]

Originally Posted by andyh1956

A question to ask when considering a GV is "Can the gears be split PROGRESSIVLY"?
I've asked this question lots & GV dances around the answer.
Yes it will "Split" the gears, but if it won't split them "PROGRESSIVLY" then all you're adding is an OD box that will go from direct to OD & back again.
Also remember that the GV box is very small & uses it's own lube reservoir, not the trans lube & there's no way to cool it.
Not bashing GV units but it's a lot of $$$ to spend & not know the answers.

If you are asking if it will do this...

1st
1st OD
2nd
2nd OD
3rd
3rd OD

It won't do that in automatic mode, but it is fully capable of doing that with manual control.

If that isn't what you mean, then please explain "progressively".

[andyh1956]

Originally Posted by DieselSJ

If you are asking if it will do this...

1st
1st OD
2nd
2nd OD
3rd
3rd OD

It won't do that in automatic mode, but it is fully capable of doing that with manual control.

If that isn't what you mean, then please explain "progressively".

DieselSJ that's xactly what I was talking about. Some transmissions & splitter boxes aint compatable ratio wise. Having said that, ALL my experience is with Class 8 truck equipment, not the GV splitter, although I did drive a truck once with a Doug Nash Under drive in it but it was an auto trans.
Have you owned / driven a GV w/ a std trans & shifted it progressively? Sure be interested to know how they perform!

[DieselSJ]

Originally Posted by andyh1956

DieselSJ that's xactly what I was talking about. Some transmissions & splitter boxes aint compatable ratio wise. Having said that, ALL my experience is with Class 8 truck equipment, not the GV splitter, although I did drive a truck once with a Doug Nash Under drive in it but it was an auto trans.
Have you owned / driven a GV w/ a std trans & shifted it progressively? Sure be interested to know how they perform!

Yes, we had a shop truck with a NV4500 and a GV. The NV has some fairly large splits so the GV worked very well with that trans. Drove that truck fully loaded towing an enclosed trailer with a race car with a full set of spare parts and tools from the shop in San Diego out to Colorado Springs. We had the manual switch for the GV mounted on the gear shift so it was easy to shift both units at the same time.

If you are concerned about the split ratios, it is easy enough to figure out what the splits would be if you know the ratios in your transmission.

[andyh1956]

good info! Thanks!