9 In rear.

[Ridgerunner]

What year was the last year for a 9 in rear end in a F150?

 

[FordF-SuperDuty]

IIRC 86.
10cl

 

[5.0Flareside]

I believe 83 maybe 84 some may have been left over

 

[Ridgerunner]

I didn't know I thought they ended in 79

 

[FordF-SuperDuty]

I didn't know I thought they ended in 79

I know it didn't end it 79 because Shaun has a 9" in his truck.

 

[Ridgerunner]

I know it didn't end it 79 because Shaun has a 9" in his truck.

Ok. Thanks

 

[5.0Flareside]

I had a 9" in my 82 f100.

 

[Ridgerunner]

I always had a 8.8 or a Sterling on mid 80's truck.

 

[5.0Flareside]

VIew in ow they started phasing out the 9". It was still used in more work truck built trucks. 8.8 was in lighter duty f150s.

 

[Ridgerunner]

VIew in ow they started phasing out the 9". It was still used in more work truck built trucks. 8.8 was in lighter duty f150s.

Mine is a light duty F150 someone changed the rear leaf springs. So I am thinking earlier rear end and 80-96 leaf springs.

 

[Fellro]

I have a factory 9" in an 85...

 

[Ridgerunner]

I have a factory 9" in an 85...

Mine is a 88. I don't remember what axle my 85 use to have.

 

[1985 Ford F-150]

My 85 has a 9 inch as well. I had an 86 2wd parts truck that had a 8.8 so that might be another thing to consider.

 

[dragogt]

Both of mine have the 8.8..

 

[fatdan460]

last year was 86, but you have to look to be sure. they had some carry over of them so some 86's are 8.8's and some are 9's.

 

[Fordzilla80]

As it's been said, the last year was 86. Ford started putting 8.8's in the trucks circa 83-84. Some trucks got the 8.8, others got the 9". I have no idea how they chose which rear axle went in which truck.

 

[Ridgerunner]

I guess I will limit myself on the years of trucks to find a donor rear end so i can get my 8.8 out and a 9 inch in.

 

[Fordzilla80]

Try to look for early 80's trucks.

 

[Ridgerunner]

Try to look for early 80's trucks.

Yeah I was going to use a cut off year of 80. The local PAP has several 77-79 in the yard so finding one won't be hard but getting a good one might be.

 

[Fordzilla80]

One thing to keep in mind, is with the gear ratio. The gas crisis was going on around 78-82, so alot of the 9's have high gear ratios. Mine has a 2.75 ratio. I see alot of others with the same, or 3.50's.