Update on my gear troubles!
#1
Bullitt Member
Thread Starter
Hello everyone who has followed my post! I got car back today...this is what installer told me.He ordered a new set of FRPP gears....but he first redid old set again...with some changes to backlash and pinion depth...just to see what would happen. SAME THING!!! He took it all apart again...MEASURED Carrier,and Pinion Angle(which is 3 degree's on a stock suspension),and checked housing for trueness. Everything measured up true. He then put in new set of FRPP gears..set up to previous specs! CAR and Driver are happy again!!! Everything is fine...no clunking,and just a touch of whine on deacceleration,around 50-60 mph! Now i know some of you guys are gonna say you have no whine...and that's great...but all i can say is that it is a world apart from what it was before..and better than it was stock. I had whine both accel,and deaccel! His settings are as follows: Pinion Depth 28thousanths, Backlash 7 thousanths, and 7lbs preload on crush collar. Gears have nice even mesh to them. I don't know if this will help anyone...i hope so! CONCLUSION...must be something wrong with first set of gears!!!!!
#2
That's awesome news, Fidele! I have new hope. My 4.10's are still singin' a tune. Haven't had a chance to bring it back in yet.
A few questions for ya:
Did you stay with synthetic lube?
How much of the expense did you incur? My installer has agreed to swap out my gears if the whine remains after switching back to dino lube. He didn't offer to do it for free, however. If your gears were defective then whose fault is it? Can't be yours. Right?
A few questions for ya:
Did you stay with synthetic lube?
How much of the expense did you incur? My installer has agreed to swap out my gears if the whine remains after switching back to dino lube. He didn't offer to do it for free, however. If your gears were defective then whose fault is it? Can't be yours. Right?
#3
Originally posted by Fman67@July 19, 2005, 12:47 AM
Hello everyone who has followed my post! I got car back today...this is what installer told me.He ordered a new set of FRPP gears....but he first redid old set again...with some changes to backlash and pinion depth...just to see what would happen. SAME THING!!! He took it all apart again...MEASURED Carrier,and Pinion Angle(which is 3 degree's on a stock suspension),and checked housing for trueness. Everything measured up true. He then put in new set of FRPP gears..set up to previous specs! CAR and Driver are happy again!!! Everything is fine...no clunking,and just a touch of whine on deacceleration,around 50-60 mph! Now i know some of you guys are gonna say you have no whine...and that's great...but all i can say is that it is a world apart from what it was before..and better than it was stock. I had whine both accel,and deaccel! His settings are as follows: Pinion Depth 28thousanths, Backlash 7 thousanths, and 7lbs preload on crush collar. Gears have nice even mesh to them. I don't know if this will help anyone...i hope so! CONCLUSION...must be something wrong with first set of gears!!!!!
Hello everyone who has followed my post! I got car back today...this is what installer told me.He ordered a new set of FRPP gears....but he first redid old set again...with some changes to backlash and pinion depth...just to see what would happen. SAME THING!!! He took it all apart again...MEASURED Carrier,and Pinion Angle(which is 3 degree's on a stock suspension),and checked housing for trueness. Everything measured up true. He then put in new set of FRPP gears..set up to previous specs! CAR and Driver are happy again!!! Everything is fine...no clunking,and just a touch of whine on deacceleration,around 50-60 mph! Now i know some of you guys are gonna say you have no whine...and that's great...but all i can say is that it is a world apart from what it was before..and better than it was stock. I had whine both accel,and deaccel! His settings are as follows: Pinion Depth 28thousanths, Backlash 7 thousanths, and 7lbs preload on crush collar. Gears have nice even mesh to them. I don't know if this will help anyone...i hope so! CONCLUSION...must be something wrong with first set of gears!!!!!
Happy to see it worked out for you I had the exact same experience as you. First set had a bad whine everywhere, second set has only a slight whine around 50 mph. FRPP needs to improve their quality control process.
The Boss Hog
#4
Fidele, thanks for the update. I have two questions. First of all, did you get 4.10's? And second, I will be having my 4.10's installed in my auto GT in a week or two... can I tell the installer the pinion depth and backlash that you listed, to help him out? I have FRPP gears as well. Is every rear end different as far as that goes, or will those numbers work for me as well?
#5
Originally posted by acadian@July 19, 2005, 9:31 AM
Fidele, thanks for the update. I have two questions. First of all, did you get 4.10's? And second, I will be having my 4.10's installed in my auto GT in a week or two... can I tell the installer the pinion depth and backlash that you listed, to help him out? I have FRPP gears as well. Is every rear end different as far as that goes, or will those numbers work for me as well?
Fidele, thanks for the update. I have two questions. First of all, did you get 4.10's? And second, I will be having my 4.10's installed in my auto GT in a week or two... can I tell the installer the pinion depth and backlash that you listed, to help him out? I have FRPP gears as well. Is every rear end different as far as that goes, or will those numbers work for me as well?
#6
Bullitt Member
Thread Starter
Originally posted by Clem@July 19, 2005, 6:50 AM
That's awesome news, Fidele! I have new hope. My 4.10's are still singin' a tune. Haven't had a chance to bring it back in yet.
A few questions for ya:
Did you stay with synthetic lube?
How much of the expense did you incur? My installer has agreed to swap out my gears if the whine remains after switching back to dino lube. He didn't offer to do it for free, however. If your gears were defective then whose fault is it? Can't be yours. Right?
That's awesome news, Fidele! I have new hope. My 4.10's are still singin' a tune. Haven't had a chance to bring it back in yet.
A few questions for ya:
Did you stay with synthetic lube?
How much of the expense did you incur? My installer has agreed to swap out my gears if the whine remains after switching back to dino lube. He didn't offer to do it for free, however. If your gears were defective then whose fault is it? Can't be yours. Right?
#7
Bullitt Member
Thread Starter
Originally posted by The Boss Hog@July 19, 2005, 6:54 AM
Fidele,
Happy to see it worked out for you I had the exact same experience as you. First set had a bad whine everywhere, second set has only a slight whine around 50 mph. FRPP needs to improve their quality control process.
The Boss Hog
Fidele,
Happy to see it worked out for you I had the exact same experience as you. First set had a bad whine everywhere, second set has only a slight whine around 50 mph. FRPP needs to improve their quality control process.
The Boss Hog
#8
Shelby GT500 Member
The cure for this problem is to buy Ford Performance gears. I've had them in a couple cars and never once had an issue. You get what you pay for.
Whoops, I just noticed that you ARE using Ford gears. I'm shocked people are having issues. I'm sure everyone know this, but rears aren't exactly easy to set up. The people setting up the rear really need to know what they're doing.
I don't feel the problem is with the product. I think some installers need to be more careful.
Whoops, I just noticed that you ARE using Ford gears. I'm shocked people are having issues. I'm sure everyone know this, but rears aren't exactly easy to set up. The people setting up the rear really need to know what they're doing.
I don't feel the problem is with the product. I think some installers need to be more careful.
#9
Originally posted by 97svtgoin05gt@July 19, 2005, 9:42 PM
...I don't feel the problem is with the product. I think some installers need to be more careful.
...I don't feel the problem is with the product. I think some installers need to be more careful.
The Boss Hog
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