3.73's/4.10's - gear whine?

Timber · January 29th, 2007, 11:30 AM

If you've changed out your stock gears for 3.73's or 4.10's, please respond. What I want to know is who made the gears and do they whine.

My pickup has gear whine after putting in Motive Gear 4.56's and I don't want it in this car.

Thanks.

03 R Code · January 29th, 2007, 12:04 PM

I changed out mine to 4.30's and they run queit as a church mouse. FRPP is what I've gotten and everyone I've talked to about gears say they are the greatest. I've heard from some people that Motive gears do whine a lot.

GTsetGO · January 29th, 2007, 12:11 PM

i have heard that motive's tend to whine. i have frpp 410's and have had no problem.

sonicblue · January 29th, 2007, 12:41 PM

frpp 3.73s in my car and no whine at all. ihave heard some of the others whine but with a good install you should be ok

KhaosGT · January 29th, 2007, 01:12 PM

who set them up for you they probably didnt set the axle up right

Ryno · January 29th, 2007, 02:53 PM

I put FRPP in mine, and no whine at all, i was told that every other brand of gears would whine (including motive)

sweet99 · January 29th, 2007, 04:48 PM

I have Motive 4.10's and have more of a whistle from 40-50 mph. If concerned I would go with the FRPP's as they do seem to heva the least complaints. Just be sure the FRPP's are made by someone rather than Motive who used to be one of their suppliers. My mechanic said the Motives are about 50/50% for whine. I also went with the lighter gear oil, Mobil 1, some weight like 75W-85, instead of Ford's new recommended XXW-140 and I may upgrade to that for several purposes and will see if the heavier oil helps the whistle I have. Mark

MySallyMI · January 29th, 2007, 05:02 PM

I have motive gear 4.10's, they whine a little between the speeds of 40-65 only when im just keeping speed. You know not accelerating but not decelerating, just sorta holding speed. Im not worried about it. If it got worse at higher speeds then i would.

Timber · January 29th, 2007, 07:27 PM

The gears in my truck are Reider Racing, not Motive - my bad. I had a few guys look at them after the second install. Said they didn't look like they were burnished in properly. Whatever. They whine around 45 to 50 mph and I don't want anymore of that.

Sounds like FRPP is the way to go. What the best place to buy them and an install kit?

sweet99 · January 29th, 2007, 08:21 PM

www.summitracing.com carries FRPP They should have a good price. Not sure they will have the pinion and side bearing shim kits though. IO got my shims at a local gear/driveshaft supplier for trucks and they ran about $30. for both kits. Mark

sweet99 · January 29th, 2007, 08:40 PM

A quick search for ring and pinion sets showed the Ford gears, 3.73's, for $165. and a good install kit with the shims for both the pinion and cARRIER BEARINGS FOR $79.99. m SWEET

Black Betty · December 10th, 2007, 06:37 PM

You can get FRPP's from Mustang Parts & Performance - American Muscle $160 for 3.73's and they also sell the installation kits

2000stangGT · December 10th, 2007, 07:08 PM

i have frpp but IVE HEARD that motive makes frpp gears now. install is a big key to whether they will whine or not.

03 R Code · December 10th, 2007, 07:10 PM

Originally Posted by 2000stangGT

i have frpp but IVE HEARD that motive makes frpp gears now. install is a big key to whether they will whine or not.

+1

Make sure if you do it you know how. Or if a shop does they have a good rep.

mattstang · December 10th, 2007, 07:11 PM

some gears are machined a certain way. usually more aggresive pattern. and they're just prone to whining. its not neccesarily a bad thing. look at the old muncie rockcrusher. a tough as tranny but the way the gears engaged they were noisy. but nearly indestructible.

Smoothgrandmama · December 11th, 2007, 07:59 AM

I have the frrp 3.73's and no whine.

January 29th, 2007, 11:30 AM	#1
Timber Enthusiast Join Date: Dec 2006 Location: No point mentioning those bats... Posts: 867 iTrader: 0 reviews	3.73's/4.10's - gear whine? If you've changed out your stock gears for 3.73's or 4.10's, please respond. What I want to know is who made the gears and do they whine. My pickup has gear whine after putting in Motive Gear 4.56's and I don't want it in this car. Thanks. __________________

January 29th, 2007, 12:11 PM	#3
GTsetGO Cigar Assassin 2004 Mustang GT 12.88 @ 112 Join Date: Aug 2005 Location: A Galaxy Far, Far Away Posts: 14,081 iTrader: 10 reviews	i have heard that motive's tend to whine. i have frpp 410's and have had no problem. __________________ Cigar Samplers for Sale 2008 Acura TL-S - 2008 Honda Pilot EX-SE

January 29th, 2007, 12:41 PM	#4
sonicblue Hardcore Enthusiast 1990 GT Join Date: Aug 2006 Location: dalzell, south carolina Posts: 1,436 iTrader: 0 reviews	frpp 3.73s in my car and no whine at all. ihave heard some of the others whine but with a good install you should be ok __________________ 1990 5.0 getting all fixed up for next season 2004 mustang gt 520rwhp, 491 trq sold

January 29th, 2007, 01:12 PM	#5
KhaosGT Enthusiast 2004 Mustang GT Join Date: Jan 2007 Location: Fort Worth, TX Posts: 970 iTrader: 0 reviews	who set them up for you they probably didnt set the axle up right __________________ 2004 Black Mustang Gt When I see a 5.0...I respect my elders.

January 29th, 2007, 02:53 PM	#6
Ryno Regular Join Date: Jan 2007 Posts: 121 iTrader: 0 reviews	I put FRPP in mine, and no whine at all, i was told that every other brand of gears would whine (including motive) __________________ Ryno www.myspace.com/ryno5700

January 29th, 2007, 12:04 PM	#2
03 R Code MM Fanatic unstoppable @ speed of light Join Date: Jul 2006 Location: Knees deep in dat ass Posts: 3,104 iTrader: 0 reviews	I changed out mine to 4.30's and they run queit as a church mouse. FRPP is what I've gotten and everyone I've talked to about gears say they are the greatest. I've heard from some people that Motive gears do whine a lot.

January 29th, 2007, 04:48 PM	#7
sweet99 Regular Join Date: Nov 2006 Posts: 201 iTrader: 0 reviews	I have Motive 4.10's and have more of a whistle from 40-50 mph. If concerned I would go with the FRPP's as they do seem to heva the least complaints. Just be sure the FRPP's are made by someone rather than Motive who used to be one of their suppliers. My mechanic said the Motives are about 50/50% for whine. I also went with the lighter gear oil, Mobil 1, some weight like 75W-85, instead of Ford's new recommended XXW-140 and I may upgrade to that for several purposes and will see if the heavier oil helps the whistle I have. Mark __________________ '99 Convertible. 4.10's, PYPES catted X-pipe and catback. UDP's. 75mmBBK TB/plenum. JLT CAI. UDP's, Brenspeed custom tuned SCT. SVO intake & SHM cams this winter! Lord willing.

January 29th, 2007, 05:02 PM	#8
MySallyMI Regular Join Date: Jul 2006 Location: Grand Rapids,MI-Ft.Hood,TX Posts: 253 iTrader: 0 reviews	I have motive gear 4.10's, they whine a little between the speeds of 40-65 only when im just keeping speed. You know not accelerating but not decelerating, just sorta holding speed. Im not worried about it. If it got worse at higher speeds then i would.

January 29th, 2007, 07:27 PM	#9
Timber Enthusiast Join Date: Dec 2006 Location: No point mentioning those bats... Posts: 867 iTrader: 0 reviews	The gears in my truck are Reider Racing, not Motive - my bad. I had a few guys look at them after the second install. Said they didn't look like they were burnished in properly. Whatever. They whine around 45 to 50 mph and I don't want anymore of that. Sounds like FRPP is the way to go. What the best place to buy them and an install kit? __________________

January 29th, 2007, 08:21 PM	#10
sweet99 Regular Join Date: Nov 2006 Posts: 201 iTrader: 0 reviews	www.summitracing.com carries FRPP They should have a good price. Not sure they will have the pinion and side bearing shim kits though. IO got my shims at a local gear/driveshaft supplier for trucks and they ran about $30. for both kits. Mark __________________ '99 Convertible. 4.10's, PYPES catted X-pipe and catback. UDP's. 75mmBBK TB/plenum. JLT CAI. UDP's, Brenspeed custom tuned SCT. SVO intake & SHM cams this winter! Lord willing.

January 29th, 2007, 08:40 PM	#11
sweet99 Regular Join Date: Nov 2006 Posts: 201 iTrader: 0 reviews	A quick search for ring and pinion sets showed the Ford gears, 3.73's, for $165. and a good install kit with the shims for both the pinion and cARRIER BEARINGS FOR $79.99. m SWEET __________________ '99 Convertible. 4.10's, PYPES catted X-pipe and catback. UDP's. 75mmBBK TB/plenum. JLT CAI. UDP's, Brenspeed custom tuned SCT. SVO intake & SHM cams this winter! Lord willing.

December 10th, 2007, 06:37 PM	#12
Black Betty Regular 2001 Mustang GT Join Date: Dec 2007 Location: North Carolina Posts: 102 iTrader: 0 reviews	You can get FRPP's from Mustang Parts & Performance - American Muscle $160 for 3.73's and they also sell the installation kits

December 10th, 2007, 07:08 PM	#13
2000stangGT Enthusiast 2000 Mustang Gt 13.56 @ 106 Join Date: Jun 2006 Location: CT Posts: 806 iTrader: 0 reviews	i have frpp but IVE HEARD that motive makes frpp gears now. install is a big key to whether they will whine or not. __________________ JLT - Accufab - MPH Heads - VT Stage 2 N/A cams Manley Valves/Springs - Centerforce Dual Friction BBK LT's - BBK o/r H - Bassani catback FRPP 4.10s - XCAL2 - BBK UDP's 306rwhp/333rwtq

December 10th, 2007, 07:11 PM	#15
mattstang Hardcore Enthusiast Join Date: May 2007 Posts: 1,761 iTrader: 1 reviews	some gears are machined a certain way. usually more aggresive pattern. and they're just prone to whining. its not neccesarily a bad thing. look at the old muncie rockcrusher. a tough as tranny but the way the gears engaged they were noisy. but nearly indestructible. __________________ FX4 Crew Crew member #3

December 11th, 2007, 07:59 AM	#16
Smoothgrandmama Assistant to the Manager 12 GT 8.46@88 1/8 Join Date: Apr 2007 Location: Willis,Texas Posts: 7,157 iTrader: 6 reviews	I have the frrp 3.73's and no whine. __________________ Join The MM Facebook: Modded Mustangs Facebook Vote For Modded Mustangs Ride of the Month Eskimo Brothers To Smooth: Safi, Blitz34, Graystang01, WillTheThrill, Bwal, 101Fng

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