3.55 gears.

66StangGuy · 08-09-2002, 02:02 AM

i just bought 3.55 gears in the 3rd member off e bay for $190

just wondering if anyone else has these and if they are happy with them. i am going from 2.80 with about 10 broken teeth to new 3.55's and i was wondering if anyone else had 2.80's before and went to 3.55's and if they were happy with the difference.

John Z · 08-09-2002, 09:00 AM

I have 3.55 and really like them, but I also have a T5 that allows cruising at reasonable engine rpm. At 70 mph, I cruise at about 2100 rpm in 5th. In 4th it would be over 3000 rpm at 70. Around town the 3.55 give really good acceleration.

Rev · 08-09-2002, 12:54 PM

I went from 2.80 to 3.25 and that seems good to me. I also cruise at 3000 RPM @ 70MPH, but that's with a C-4. There's about 5% slippage in the torque converter when fully coupled on a C-4 (no lock up).

Rev

gp001 · 08-09-2002, 02:13 PM

66StangGuy - have you checked under your post "C4 with 280s" ? I posted a bunch of charts that may help get an idea what you can expect

red · 08-09-2002, 06:04 PM

I switched from 2.80 to 3.55 a few years ago.
It is a great for everything but highway cruzing.

66StangGuy · 08-10-2002, 02:37 AM

i checked out the charts. they helped a lot.. thanks for the post

1969Mach1 · 08-12-2002, 02:40 PM

I believe I have 3.55's, in 4th at about 70mph I'm at around 3000rpm. Whatever is in there I love them. But it's the only thing I'm used to. But when you can snap your neck taking off at like 35-40mph thenit's fun.

Best is when you stap on it and everyone goes silent.

§am.

08-09-2002, 02:02 AM	#1
66StangGuy Registered Member Join Date: Feb 2002 Location: Diamond Bar Posts: 258	3.55 gears. i just bought 3.55 gears in the 3rd member off e bay for $190 just wondering if anyone else has these and if they are happy with them. i am going from 2.80 with about 10 broken teeth to new 3.55's and i was wondering if anyone else had 2.80's before and went to 3.55's and if they were happy with the difference. __________________ 66 mustang-292-Holley 4160-World Castings Windsor Sr.-Hooker super comp headers-MSD box & Coil.3.55 gears. B&M Z-Gate-Black leather racing seats with 4pt harnes.

08-09-2002, 09:00 AM	#2
John Z Registered Member Join Date: Feb 1999 Posts: 102	I have 3.55 and really like them, but I also have a T5 that allows cruising at reasonable engine rpm. At 70 mph, I cruise at about 2100 rpm in 5th. In 4th it would be over 3000 rpm at 70. Around town the 3.55 give really good acceleration. __________________ 68 coupe, 302 w/ Edelbrock performance parts, T5, 3.55 rear, needs paint!

08-09-2002, 12:54 PM	#3
Rev Registered Member Join Date: Nov 1998 Location: Houston, Tx. Posts: 3,887	2.80 to 3.25 I went from 2.80 to 3.25 and that seems good to me. I also cruise at 3000 RPM @ 70MPH, but that's with a C-4. There's about 5% slippage in the torque converter when fully coupled on a C-4 (no lock up). Rev __________________ '66 Coupe, 306, 350-375 HP, C-4, 13.07 e.t., 104.8 mph, 1/4 mi. O.B.C. #2 '66 coupe Last edited by Rev; 08-09-2002 at 01:13 PM..

08-09-2002, 02:13 PM	#4
gp001 Registered Member Join Date: Nov 2000 Location: So. Cal. Posts: 244	66StangGuy - have you checked under your post "C4 with 280s" ? I posted a bunch of charts that may help get an idea what you can expect __________________ 347 CHP shortblock, TFS TW, Stealth, 650 Holley, Flowtech hdrs, Dr. Gas X, 2 Chmbr Flowmaster, MSD 6AL-Dist.& SS coil, March serpentine pulley system, Richmond 6 spd, CFDF, Hyd. TOB, Currie 9" w/3.50, alum Drv Shft, susp mods, TCP subframes & tower braces, Trans Am Racing power dual master, 4 wheel disc, 17x8 Torqthrust II's Something up my sleeve In a 66 coupe www.2mfffabshop.com

08-10-2002, 02:37 AM	#6
66StangGuy Registered Member Join Date: Feb 2002 Location: Diamond Bar Posts: 258	i checked out the charts. they helped a lot.. thanks for the post __________________ 66 mustang-292-Holley 4160-World Castings Windsor Sr.-Hooker super comp headers-MSD box & Coil.3.55 gears. B&M Z-Gate-Black leather racing seats with 4pt harnes.

08-09-2002, 06:04 PM	#5
red Registered Member Join Date: Sep 1998 Location: Millburn, NJ Posts: 310	I switched from 2.80 to 3.55 a few years ago. It is a great for everything but highway cruzing.

08-12-2002, 02:40 PM	#7
1969Mach1 HEY I CAN SET A NAME NOW! Join Date: Oct 2001 Location: Ontario, Canada Posts: 2,556	I believe I have 3.55's, in 4th at about 70mph I'm at around 3000rpm. Whatever is in there I love them. But it's the only thing I'm used to. But when you can snap your neck taking off at like 35-40mph thenit's fun. Best is when you stap on it and everyone goes silent. §am. __________________ 1969 Mustang Mach 1Sold 351-4V Windsor, 4 Speed MACH 1 - Moving At The Speed Of Sound. 1979 Mustang Indianapolis 500 Pace Car For Sale - Email me for Info 302-2V, 3-Speed Auto One of 2,106 made One of 405 sent to Canada. Yes those are caution lights, and No you can't pass me when there on. Ricer Hater's Club - Member #4

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