(quoted from post at 17:25:21 12/19/14) was duel power an extry or was it standered on biger ford tractors talking 7710

To the best of my knowledge, dual power was never standard equipment on any model . . . at least it wasn't on the early ones.
 
Many years ago I had an 8600 without Dual power. The 8700 and 9700 tractors i have seen have the dual power.
 
All my pre-'85 sales literature shows Dual Power as being an option on 4 and 6 cylinder models, and not available on 3 cylinder models. The TW 30 was the first to have it as a standard feature; I think all the later TW's and 8030's (except those with the full powershift) had Dual Power.
 
Parts site shows the 8 speed transmission case for the 7710 as with or less dual power, so it appears it have been optional.
 
Agree. I just checked all my lit also, and the TW30 appears to be the first model Ford offered it as standard equipment.

For some reason I thought the 7600/7700 had it as standard also, but it was actually the worthless Load Monitor.
 
While in this "case" you were correct, be careful when using a parts book to answer these kinds of questions. That same parts book also covers the 5610s and 6610s. Ford was never real good at making some of those differences clear in the parts books.
 
I was using the parts web site, and that transmission case was specifically listed as for the 6710 & 7710 W/ & L/ dual power. Nothing about a 5610 or 6610 mentioned.
 
I wish it could be done. That would make my 4600 even better for mowing. But there isn't a transmission case that would hold it AND bolt up to a 3-cylinder rear end. I don't think a 4xxx transmission case is physically big enough.
 
I always assumed the DP unit fit into the bell housing like a Sherman. Maybe not?
I had noticed the front end of a 5000 size tractor looked pretty similar to a 3 cyl.

16.jpg
 
I understand what you're saying. I forgot to include the 6710 in my list, since it's quite rare.

My point was that one needs to be very careful interpreting options availability from a Ford parts manual. In this specific case, if in fact a 7710 did in fact have DP as standard, I really doubt you'd know that from the parts book, as it would still have been optional on the 6710, and Ford would most likely not have noted that it was standard on the 7710 in the parts book.

For example, consider Load Monitor on the hundred series. It was standard on the 7600 and 7700, and optional on the 56, 66, and 6700. If you take a look at the parts book, it lists all 5 models on the same page, and nowhere does it mention LM as being standard on the 76 and 7700.
 
As tight as that DP housing sits in a 4 cylinder trans case, I'd be shocked if someone was able to cram it into a 3-cylinder case. I just don't think the real estate is there inside a 4600 case.

I suspect that DP was originally engineered for the 8-9000s, and then shoehorned into the 4-cylinder cases after that. If you take a look at a 4-cylinder DP housing, it's machined on the top for steering box clearance.
 
Dual power was not 'standard' on the 7710 as such... meaning that not all 7710's had DP. That said... DP with the syncro transmission was the 'normal' configuration for a 7710 although it could be had with the 16x4 and 8x2 transmissions...

Rod
 
Dual Power was available on 30 series syncro transmissions... I don't remember if it was available on late 3 cylinder 10 series for sure... but I know the 30 series had it.
Those were not a simple unit that you could integrate into what you have... and the big issue is the transmission needs it's own oil supply to feed the DP on the 3 cylinders. Your vintage will not have a pump.

Rod
 
I think what Ultradog was asking was if a DP unit from say a 7600 would fit into a 3-cylinder case, which of course it will not.

I am aware of the "DP" offering on the 30 series, however it was not the same reliable unit we have all come to know and love. And no, I am not implying that the later DPs were not reliable.
 
You are correct...
The 30 series transmission... while quite functional.. left a lot to be desired generally in terms of reliability. I've changed the same syncro 3 times in one we have. I do not have DP in this one, but after having studied the manual on it while going through what I do have... it seems to me to be a poor setup relative to the larger DP units. 10 series units are quite reliable as long as they're oiled..


Rod
 

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