My '07 Rancher FM has always pulled to the right. The other day me and my wife left the house and headed to the hills for an afternoon ride and rasberry hunt. When we headed down the street it was pulling to the right terribly. My first thought was a low front tire. After we got to the forest service roads (gravel) it didn't seem quite as bad. Anyway....

The next morning after cleaning them up, ( air pressure was dead on) I decided to get out the service manual and see what I could determind. The main cause was front end toe. After checking the specs I noticed that FM and FE are toe out a half inch and TE and TM are toe in a half inch.
I decided to check the toe and it was with in the specs. I decided to do a little experimenting and put my toe at even front to back ( no toe). What a world of difference.......it drives like a dream, no pulling and it even steers alot easier.

OK, my question is why are the 4X4 toe out......any reason????

 

Two reasons:

#1 They want to be more stable in the turns if towed out. We tow race cars out when street cars are towed in.
#2 They tent to go straighter when hill climbing because the tires pull slightly against each other.

Tow should have nothing to do with pulling. IMHO you have something else wrong. Stearing can be easier with a 0 tow adjustment, but like I said stability is slightly worse.

 

But in the service manual....tow alignment is the number one reason listed for pulling to one side, low air pressure #2 and a bent tie rod #3 and the later two I checked....besides, the 4X2 is toed in a half inch.....so why wouldn't that create an unstable condition as compared to the 4X4?
I might go for the hill climb or mud theory.....but still makes no since to be toed out!

 

Tow is symmetrical. In other words if you tow one tie rod it will tow both tires the same amount. This being so, how can tow pull to one side? There should be no pulling one way or the other with tow. How would it know which way to pull if tow is symmetrical?

I would not say unstable. I would say "more" stable. Every street car I know of is towed in. This does not mean a street car is unstable. It means that I can make a race car "slightly" more stable in the turns with tow out.