have a 91 f150 that was my gpas. it is geared low. i am restoring it and do not need it to be a work horse anymore. i want to know which gear ratio to put in the pumpkin for speed and gas economy. i am a gm man so i know little of ford ratios/motors etc.
2007-07-19 17:57:41 · 11 answers · asked by tom5251972 4 in Cars & Transportation ➔ Maintenance & Repairs
its a 300 auto. my gpa said that it had i think 411 in the pumpkin. i do not need power for hauling/working. just leaner gas usage while gainign some speed
2007-07-19 18:12:29 · update #1
a good gear for it would be a 3:73 or a 3:55 either one would be a pretty good gear for it,either of those gears will help it,the best one for mileage will be the 3:55,they seem to do good with those gears in them,another good one is a 3:23 if you could fine one,good luck on it.
2007-07-19 18:11:03 · answer #1 · answered by dodge man 7 · 2⤊ 0⤋
3:55 or 3:50, the 300 should have the torque to run 3:23 but may still pooch it out of the hole, 3:73's may be OK depending on your tire size but I don't remember the 300 having a very high red line. Tire diameter is the last variable in your final drive ratio but 4:11's are deffinitely too low for speed with an inline rpm band but could probably take your house along the way I remember my buddies 84-F150 with the 300 and 4spd manual
2007-07-27 01:01:20 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Alotta this choice depends on yer current power. Does it have a 302 (5.0) ? Auto or stick ? If you'd like to lower the RPM's just a tad to keep the power that you've got, consider switching to a little taller tire & save some work & money. =^ )
2007-07-19 18:07:15 · answer #3 · answered by Anonymous · 0⤊ 0⤋
If you have that I-6 (6 inline engine), I'd consider getting
a ratio as close to 3.25:1 as possible.
Othrwise, you'd need a tall T5 manual trans transplant....with a shifter on the floor.
2007-07-19 18:40:57 · answer #4 · answered by tito_swave 4 · 0⤊ 0⤋
Get greater rates, and perhaps examine around some pull an element places to work out what a replace would fee. it must be a bearing - or the whine would incredibly be coming from the transmission or maybe a wheel bearing quite than the diff.
2016-11-09 23:09:51 · answer #5 · answered by ? 4 · 0⤊ 0⤋
373
2007-07-19 18:01:35 · answer #6 · answered by Brianna R 2 · 0⤊ 0⤋
Most common ratio's are the 3:55 or the 3:73. I'm sure you can find them at a salvage yard. good luck.
2007-07-19 18:01:57 · answer #7 · answered by Fordman 7 · 1⤊ 0⤋
373
2007-07-24 01:52:18 · answer #8 · answered by Anonymous · 0⤊ 1⤋
A good truck ratio is 3.73 and if you dont plan on towing anything heavy 3.23
2007-07-19 18:45:29 · answer #9 · answered by sweet69firebyrd 3 · 0⤊ 0⤋
3.55 would probbly be your best all around gear for your needs
2007-07-19 21:17:19 · answer #10 · answered by chevyraceman_383 7 · 0⤊ 1⤋