Thinking of changin gear ratio...
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Thinking of changin gear ratio...
Well i have a 4 banger and went with a 4.10 geared axle when my 7.5 shattered the ring gear. Then i lifted it and put 31s and i have had them on for months now. It has been ok for my truck jus not really low enough for my liking, but since my truck was my dd i didnt want to lower the gear ratio because i didnt know how it would effect gas mileage, now since i have a nice lil car that gets 30+ mpg its time to do the truck a favor.
Running 65 in my truck (which i dunno how fast im really running) its at 2300 rpm with a aftermarket tach. It pulls great from 60 and up on flat road but on the hills out here i lose alot, sometimes havin to go to 4th or 3rd. Plus take off it kinda bogs down, i know 4 cylinder truck and not my turbo 4 car, but still its bad. So i been looking today at gears and went to the the ranger station and used their gear cal. It said with 4.30s i would be at a 3.73 gear ratio which was my stock gearing, and with 4.56s i would be at a 3.99 gear. Im leaning towards the 4.56s since i might move to 32s. A shop i use to work at told me they would do it for $200 no matter how long it took them so i got a shop i trust to do it fairly reasonable. Anyone want to shed some light on this for me, me and gears never got along well
Running 65 in my truck (which i dunno how fast im really running) its at 2300 rpm with a aftermarket tach. It pulls great from 60 and up on flat road but on the hills out here i lose alot, sometimes havin to go to 4th or 3rd. Plus take off it kinda bogs down, i know 4 cylinder truck and not my turbo 4 car, but still its bad. So i been looking today at gears and went to the the ranger station and used their gear cal. It said with 4.30s i would be at a 3.73 gear ratio which was my stock gearing, and with 4.56s i would be at a 3.99 gear. Im leaning towards the 4.56s since i might move to 32s. A shop i use to work at told me they would do it for $200 no matter how long it took them so i got a shop i trust to do it fairly reasonable. Anyone want to shed some light on this for me, me and gears never got along well
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That is what i thought...I never had a tach in my truck when it had 3.73s and 27in tall tires so i never knew what my cruising rpm was so that dumb founded me when i did my math, but readin on rps i read that max torgue was at 2400rpm, and i would love to cruise above that mark. I guess the losin 5-15 mph on the hills is from the engine trying to make it. I get right at 20 with it like she is now, my best was 22 on the hottest day we had. The jetta gets 25 with me boostin the **** outta her lol...
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