I just got me gears installed today and they told me to not really get on it for about 500 miles, that is a long time to kinda take it easy, i was wandering how long yal waited befor yal started driveing normal (normal meaning a bat out of hell) getting on it pretty good thanks
The steeper pitch of the gears the longer you should wait for them to break in.
As a catch all gear installers always say take it easy for the first 500 miles. It's good advice.
P.S. After Dixi's 3.73 install, my mechanic's instruction was basically...don't drive her "into the ground" hard...just pretty much like you usually do...and it'll be fine. It was, and is.
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"I may never be famous, but my girls Dixi and Luci sure are."
Dixi Candace: Windveil Blue Stick V6 '05, Steeda CAI w/BBK 70mmTB/hi-flo inlet, XCal2, ASP UP, JBA SS Shorties/Evol, FRPP T-Lok diff, 34/28 mm F/R sway bars, MMR rear LCAs, Monte C. strut bar, Precision 3.73s, Snow H2OCH4O, "Q" grille and tons of Dixi Bling chrome
I waited for a little over 150 miles before taking the car to the track.....and absolutely no problems. Install was good to...just as quiet as the stock gear set.
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Paul
Daily driven 2005 GT AUTO - Whipple @ 16psi - 577 rwhp 519 rwtq
Best 1/8th mile: 6.740 @ 101.56 mph with a 1.431 60' time
Best 1/4 mile: 10.672 @ 128.42 mph with a 1.480 60' time Special thanks to:
ST Motorsports, San Bernardino CA - built engine and tune
Larry's Transmission, Corona CA - built 5R55S
M&H - 325/45/17 racemaster drag radials
GI Joe - 8 rib pulley kit
Thump_rrr - billet tensioner
i got the 3.73 gears in my other stang and raced it home from the shop on the same day with my buddies camaro....havent had a problem yet and that was 3 years ago...
i had 4.10's and they said that heat is the worst prob. so dont go on any road trips. but i had to go from orlando to tampa that night. i did stop and eat a sandwich on the way there and back to let them cool down. when i got back to orlando i ran into a 2002? saleen, and had to use them. so thats how long i waited.
My 4:10's are not even a day old. My shop (HPP) told me not to worry about breaking them in. They whine like a biatch tho - got to have it looked at again.
My 4:10's are not even a day old. My shop (HPP) told me not to worry about breaking them in. They whine like a biatch tho - got to have it looked at again.
What brand did they install? I had to have mine replaced because of the singing, but I think the shop was up to no good.
3.73's are not going to need much of a break in. Larger then that and they will start to need to be broken in correctly. Just because some of you are saying you have no problems yet the key word is "yet" and that doesn't mean you never will.
What brand did they install? I had to have mine replaced because of the singing, but I think the shop was up to no good.
FRPP's. From everything I've read they're the only ones that don't whine - if installed right of course.
On a side note, I did call the shop back today to tell them about it - even told them I'd pay for the labor to tear it down again because I just wanted it right. They immediately said no way are you going to have to pay for that to be redone. Rightfully so I guess but those HPP guys, I'm finding out first hand are top notch. I don't even mind so much going back to have this redone because sometimes stuff just happens. If your in the DFW or surrounding areas HPP is the place.
Why don't a lot of people get 3.90 gears? Wouldn't they be better for highway driving (which I do a lot of)? I know this is kinda off track, but I'm just curious because I don't see a lot of people with the 3.90s...
i havent had a problem yet...in 3 years...if i have a problem with them after all this time i dont think i'll attribute it to improper breaking in...as for 3.90s..i really dont know...everyone seemed to think 3.73 was the best all around gear
Don't you have3.73's? Not much of a break in needed for those anyway.
Quote:
Originally Posted by nghtrnnr
i havent had a problem yet...in 3 years...if i have a problem with them after all this time i dont think i'll attribute it to improper breaking in...as for 3.90s..i really dont know...everyone seemed to think 3.73 was the best all around gear
re: 3:90's, if i could go back i think i would have gotten them instead of 4:10's...just b/c my routes. if i'm not on an incline i start out in 2nd else i'm barely done letting the clutch out of 1st before i'm ready to shift into 2nd.
been taking it easy on them anyway cause i've got some whine and don't want to F them up if the pinion angle is off. but this am on the way in i hit it till about 1/2 way thru 3rd and WHOA
Those who have new gears 
