Whats wrong with 3.90's?
- Thread starter limey
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helty
some Ukrainian's enjoying a handjob via my credit
nothing. people just lean one way or ther other. another thing is a lot of guys only wanna use FRPP for gears, and they dont make 3.90's.
blackink00
I missed a shift & stole Curt's money.
blackink00
I missed a shift & stole Curt's money.
thats what helty just said stupidgore trout. man do i here an echo. GOSH!!!!!!!!! some people.Kilgore Trout said:
blackink00
I missed a shift & stole Curt's money.
im just playin, i still love you kilgore. now go make your bed.Kilgore Trout said:harsh...
free post
helty
some Ukrainian's enjoying a handjob via my credit
Kilgore Trout said:
too bad, i don't like using others...FRPP makes quality gears. others i'm not so sure of all the time.
edbo
New Member
I had 4.10's on my present car and backed down to 3.73's and haven't looked back as I believe they are perfect, of course I believe 3.90's would be "The Gear" for Modulars. Had 3.90s on my old '66 and loved them too, of course that was a pushrod 289 HP application and I thought that was a little much back then. The Motives should serve you well, as I had Richmonds in my old Stang for over ten years with no problems and people here rip Richmond gears.
SpitfireMk24
New Member
4:10's rule.
There is probably nothing wrong with 3:90's, but 4:10's are better.
The 3:90's are so close to the 4:10's in RPM on the street, so you mine as well go with the 4:10's
I have 4:10's in my 02 GT for a year and half and love them. I wish I had gone with the 4:30's.
My RPM in Fifth gear at 70 mph is 2300, was originally 1800 with 3.27 gears.
My gas mileage has been about the same, that is if you can stay out of it.
I travel 25 miles to work one way, mostly highway and I have gotten 24.5 MPG with the 4:10's. I average anywhere from 22 to 24 on the highway.
City driving I get about 20 mpg.
So in my honest opinion, if you are thinking 3:90 gears, go with the 4:10 or 4:30 gears and don't look back.
You will love them, I do.
There is probably nothing wrong with 3:90's, but 4:10's are better.
The 3:90's are so close to the 4:10's in RPM on the street, so you mine as well go with the 4:10's
I have 4:10's in my 02 GT for a year and half and love them. I wish I had gone with the 4:30's.
My RPM in Fifth gear at 70 mph is 2300, was originally 1800 with 3.27 gears.
My gas mileage has been about the same, that is if you can stay out of it.
I travel 25 miles to work one way, mostly highway and I have gotten 24.5 MPG with the 4:10's. I average anywhere from 22 to 24 on the highway.
City driving I get about 20 mpg.
So in my honest opinion, if you are thinking 3:90 gears, go with the 4:10 or 4:30 gears and don't look back.
You will love them, I do.
edbo
New Member
I didn't really say that I liked them better as the 4.10's were really awesome. I just prefer cruising with the 3.73s on the highway than with the 4.10s and that's like 80% of my driving time. Buzzing around town however, I loved the 4.10s much better. It's really a matter of choice. For most of my driving though, the 3.73s seem to be a better match and I personally prefer them because of the highway miles I drive each day. Not to get off subject, I would have loved to gone w/3.90s but I had 4.10s and my nephew had 3.73s and we just swapped rear axles which was much quicker than installing gears in and out.SpitfireMk24 said:
I've got 3.73's and i love them, however i have never had anything higher. I'd like to try some 4.10's out, because i do nothing but in town driving but i'm worried about my gas mileage 
If anyone wants to donate a set of 4.10's, then i'll be all for trying them out
If anyone wants to donate a set of 4.10's, then i'll be all for trying them out
SpitfireMk24
New Member
4.10s may actually improve your gas mileage in a way, because they put less load on the engine than the stock 3.27s. But, you in higher revs more and more likely to romp on it...
3.73-4.10 is not a big enough difference for me to pay more money to sit in between with a set of 3.90's. For the all of 150rpm you're knocking off the tach, they're not worth my time.
