1991 Ford F-150

[ChaseTruck754]

4.10's at a minimum. Maybe 4.30

[philofab]

It's got OD so 4.10 is ok. The 300 doesn't rev like a small block and makes power way down low, so 3.73 or 3.50 could work too. Depends on what you want it to be like on the street and at the pump.

I run 4.56 / 37" with my M5R2 and a little stock 302. It has enough power to get around. I can comfortably cruise at 80-90 mph on the freeway too.

[Firetwig]

Well, as an indication... I drive my truck every single day. To work and back, to play and back... I drive my Firebird to car club etc. Mustang up and down the road once a week. Bronco to town and back once a month.

[philofab]

What do you have now? 3.08?

[Firetwig]

2.73s and I love them honestly.

[philofab]

Don't go lower than 3.50 then.

[Agui-E7TE]

Don't go lower than 3.50 then.

Numerically lower or lower gearing?

3.55, 3.73, 4.10, 4.56? or 2.73, 3.08, 3.23?


Edit: Nevermind, just realized you meant to say numerically lower (higher ratio) than 3.50.

[Firetwig]

I found 2inch coils and that is about it. Maybe make the damn truck level...

http://www.summitracing.com/parts/SJA-1 ... l%7cCUSTOM

Those? ---^^

Oh and these
http://www.summitracing.com/parts/TFY-22811/

Those don't need any other parts I don't think.... Just coils fit right in and add some Bilsteins...

[ChaseTruck754]

you'll need some big alignment cams with the coils.

[Agui-E7TE]

You'll need alignment cams. Not sure what size you'll need since your truck is 2WD. As far as how high you can lift it and still be able to have it aligned, I'm not sure what the limit is for a 2WD... Philo might know this though.

[philofab]

You'll need alignment cams. Not sure what size you'll need since your truck is 2WD. As far as how high you can lift it and still be able to have it aligned, I'm not sure what the limit is for a 2WD... Philo might know this though.

I've been able to fit 3 degree with some grinding on the knuckle and beam.