tranny
Super Moderator
Joined: Apr 2004
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My '85 had a 9er, last year was '86 iirc.
8.8s have slightly different ratios, the 3.55 you mention for example vs. the 3.5, and iirc, a 3.08 vs. the 3.0 found in the 9er, as two examples.
OP can solve it all--does your axle have a removable rear cover, or a solid housing with a drop out carrier?
8.8s have slightly different ratios, the 3.55 you mention for example vs. the 3.5, and iirc, a 3.08 vs. the 3.0 found in the 9er, as two examples.
OP can solve it all--does your axle have a removable rear cover, or a solid housing with a drop out carrier?
Cargo Master
Joined: Sep 2007
Posts: 2,095
Likes: 2
From: Wahpeton ND
I have owned two '85 F150s. One had a nine, one an 8.8. I think it is kinda a limbo era. I have seen 84s with 8.8 rears.
There is nothing wrong with the 8.8. The nine is just slightly better by design.
There is nothing wrong with the 8.8. The nine is just slightly better by design.
Cargo Master
Joined: Sep 2007
Posts: 2,095
Likes: 2
From: Wahpeton ND
1965-1992 T18 transmissions fit from all gas engines. I aint sure if the diesel input shaft is different.
You need the bellhousing for your engine. I think you said you had a 4spd OD and I belive that is the same bell. I aint sure where you are at but I have a NP 435 which is slightly stronger yet with an even lower first gear.
You need the bellhousing for your engine. I think you said you had a 4spd OD and I belive that is the same bell. I aint sure where you are at but I have a NP 435 which is slightly stronger yet with an even lower first gear.
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Junior User
Joined: Apr 2010
Posts: 63
Likes: 0
From: Trinity NC
does anyone know what kind of old tranny w/ a 10 spline input shaft would have the reverse gear over to the left and up?
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Cargo Master
Joined: Sep 2007
Posts: 2,095
Likes: 2
From: Wahpeton ND
1965-1992 F100-F800 trucks had optional NP435 trannys.
The only thing I can guess with the old 10 spline is somthing from a flathead or a Yblock. Over to the left and up says maby a MD or HD floorshift manual I belive borg warner built them for ford. There are also some spicer and ford factory designs that are this way.
Over to the right and up is a T98 4spd. T18 and the NP435 are over to the right and down.
The only thing I can guess with the old 10 spline is somthing from a flathead or a Yblock. Over to the left and up says maby a MD or HD floorshift manual I belive borg warner built them for ford. There are also some spicer and ford factory designs that are this way.
Over to the right and up is a T98 4spd. T18 and the NP435 are over to the right and down.
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