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T/A Rear end option 3.91 on Fender Tag? #2206991 12/03/16 03:31 PM 12/03/16 03:31 PM
Joined: Jan 2010 Posts: 765 Vancouver, WA Cuda Cody OP super stock
Cuda Cody OP super stock Joined: Jan 2010 Posts: 765 Vancouver, WA	One of my T/A's has 3.91 gears in it and I do not have the buildsheet. The fender tag does not have any Axle package listed on it so I'm not sure if they are the original gear. It's a numbers matching engine and trans and the rear axle looks original. Would a factory 3.91 T/A have an axle package listed on the tag? 1970 Challenger T/A 4-Speed 1970 Challenger T/A 4-Speed 1970 Challenger T/A Auto 1970 Challenger R/T Auto 1970 Challenger Auto 1970 Challenger RT 440+6 4-Speed 1970 Challenger RT 440+6 4-Speed 1970 Hemi Challenger 4-Speed 1970 Hemi Cuda 4-Speed 1971 Cuda Auto 1971 Cuda 4-Speed LOOKING to BUY 1970 & 1971 E Body J, V and R Code project cars

Re: T/A Rear end option 3.91 on Fender Tag? [Re: Cuda Cody] #2207001 12/03/16 03:50 PM 12/03/16 03:50 PM
Joined: Jan 2003 Posts: 4,105 Horsham, Pa. Finoke master
Finoke master Joined: Jan 2003 Posts: 4,105 Horsham, Pa.	I don't believe it would be on the fender tag. Is the axle ratio tag still on a stud? If the gears were changed at some point most guys didn't put the tag back on.

Re: T/A Rear end option 3.91 on Fender Tag? [Re: Cuda Cody] #2207029 12/03/16 04:50 PM 12/03/16 04:50 PM
Joined: Jan 2010 Posts: 765 Vancouver, WA Cuda Cody OP super stock
Cuda Cody OP super stock Joined: Jan 2010 Posts: 765 Vancouver, WA	It's on the tag that is bolted to the 8 3/4, but I have not opened it up or counted the turns to confirm. For some reason I thought T/A's were 3.55 gears? 1970 Challenger T/A 4-Speed 1970 Challenger T/A 4-Speed 1970 Challenger T/A Auto 1970 Challenger R/T Auto 1970 Challenger Auto 1970 Challenger RT 440+6 4-Speed 1970 Challenger RT 440+6 4-Speed 1970 Hemi Challenger 4-Speed 1970 Hemi Cuda 4-Speed 1971 Cuda Auto 1971 Cuda 4-Speed LOOKING to BUY 1970 & 1971 E Body J, V and R Code project cars

Re: T/A Rear end option 3.91 on Fender Tag? [Re: Cuda Cody] #2207041 12/03/16 05:11 PM 12/03/16 05:11 PM
Joined: Jan 2005 Posts: 8,341 Crook County, ILL Mastershake340 master
Mastershake340 master Joined: Jan 2005 Posts: 8,341 Crook County, ILL	Not on fender tag. Unless you have the build sheet or window sticker you can't tell for sure if you got that ratio. 3.55 was standard and 3.91 was optional on T/As and AARs. Sorry to hijack, but on a similar subject, my T/A is a 3.91 car, I had a repro ratio tag, but it doesn't look like the resto shop installed it on my rear, nor gave me back my tag. I have to buy another, but which stud on the mounting does this tag go on? Check out my car show and cruise photo albums here: Show Pics Seeking info on a Mr Norms sold T/A VIN JH23J0B308737. Does it still exist?

Re: T/A Rear end option 3.91 on Fender Tag? [Re: Cuda Cody] #2207134 12/03/16 08:41 PM 12/03/16 08:41 PM
Joined: Jan 2006 Posts: 2,404 Lee Co. Fla. 5 5carguy top fuel
5carguy top fuel 5 Joined: Jan 2006 Posts: 2,404 Lee Co. Fla.	Here's the tag on my 71 Cuda.Hope this helps.

Re: T/A Rear end option 3.91 on Fender Tag? [Re: Cuda Cody] #2207182 12/03/16 09:32 PM 12/03/16 09:32 PM
Joined: Mar 2008 Posts: 9,550 Sacramento CA M Morty426 master
Morty426 master M Joined: Mar 2008 Posts: 9,550 Sacramento CA	Does an axle package code show on your other TAs?

Re: T/A Rear end option 3.91 on Fender Tag? [Re: Cuda Cody] #2207201 12/03/16 10:02 PM 12/03/16 10:02 PM
Joined: Jan 2003 Posts: 29,650 Hamtramck, PA A Alaskan_TA Fluffy Balladeer
Alaskan_TA Fluffy Balladeer A Joined: Jan 2003 Posts: 29,650 Hamtramck, PA	Not on the fender tag. 3:55 standard, 3:91 optional; http://www.challengertaregistry.com/photos/bulletins/brochure_pg2.jpg http://www.challengertaregistry.com/photos/bulletins/bulletin_11a.jpg http://www.challengertaregistry.com/photos/bulletins/tsb_d3_a.jpg

Re: T/A Rear end option 3.91 on Fender Tag? [Re: Alaskan_TA] #2207211 12/03/16 10:12 PM 12/03/16 10:12 PM
Joined: Jan 2003 Posts: 29,650 Hamtramck, PA A Alaskan_TA Fluffy Balladeer
Alaskan_TA Fluffy Balladeer A Joined: Jan 2003 Posts: 29,650 Hamtramck, PA	3.91 axle ratio tag on a Challenger T/A (circled)

Re: T/A Rear end option 3.91 on Fender Tag? [Re: Cuda Cody] #2207233 12/03/16 10:28 PM 12/03/16 10:28 PM
Joined: Jan 2003 Posts: 29,650 Hamtramck, PA A Alaskan_TA Fluffy Balladeer
Alaskan_TA Fluffy Balladeer A Joined: Jan 2003 Posts: 29,650 Hamtramck, PA	For the 402 Challenger T/As that I have broadcast sheet information for with legible axle codes as of today; 3.55 ratio (D56) 258 known so far. 3.91 ratio (D57) 144 known so far. Numbers can only go up as more broadcast sheet data comes in of course.

Re: T/A Rear end option 3.91 on Fender Tag? [Re: Cuda Cody] #2207251 12/03/16 10:47 PM 12/03/16 10:47 PM
Joined: Jan 2010 Posts: 765 Vancouver, WA Cuda Cody OP super stock
Cuda Cody OP super stock Joined: Jan 2010 Posts: 765 Vancouver, WA	Thanks guys! And you the MAN Barry!!!!! 1970 Challenger T/A 4-Speed 1970 Challenger T/A 4-Speed 1970 Challenger T/A Auto 1970 Challenger R/T Auto 1970 Challenger Auto 1970 Challenger RT 440+6 4-Speed 1970 Challenger RT 440+6 4-Speed 1970 Hemi Challenger 4-Speed 1970 Hemi Cuda 4-Speed 1971 Cuda Auto 1971 Cuda 4-Speed LOOKING to BUY 1970 & 1971 E Body J, V and R Code project cars

Re: T/A Rear end option 3.91 on Fender Tag? [Re: Cuda Cody] #2207369 12/04/16 02:20 AM 12/04/16 02:20 AM
Joined: Nov 2003 Posts: 3,106 Ridgeland Wi M mopars_1 master
mopars_1 master M Joined: Nov 2003 Posts: 3,106 Ridgeland Wi	Would the 3.91's come standard with the max cooling package by chance? Or was that optional? On a side note, A friend of mine has an aar cuda that he swears has the original 3.23s it it.. was it possible for this? I knows there are a few 'standard' differences between aar's and ta's... 1971 Plymouth Duster 340 auto 1937 Plymouth PT50 1969 Dodge Dart Swinger 340 4 speed 2013 Ram laramie 2500 hemi 2008 Harley FLSTSB springer

Re: T/A Rear end option 3.91 on Fender Tag? [Re: Cuda Cody] #2207375 12/04/16 02:31 AM 12/04/16 02:31 AM
Joined: Jan 2003 Posts: 29,650 Hamtramck, PA A Alaskan_TA Fluffy Balladeer
Alaskan_TA Fluffy Balladeer A Joined: Jan 2003 Posts: 29,650 Hamtramck, PA	Same gear ratios for AARs as T/As, 3.55 or 3.91 only.

Re: T/A Rear end option 3.91 on Fender Tag? [Re: mopars_1] #2207390 12/04/16 03:11 AM 12/04/16 03:11 AM
Joined: Jan 2003 Posts: 17,515 Las Vegas, NV 6bblgt I Live Here
6bblgt I Live Here Joined: Jan 2003 Posts: 17,515 Las Vegas, NV	Originally Posted By mopars_1 Would the 3.91's come standard with the max cooling package by chance? Or was that optional? there was NO orderable "MAX COOLING" on ANY US spec. vehicle (it was part of a "PACKAGE") the STANDARD cooling system was the same on all A53 "TRANS AM" e-bodies: 2998 974 radiator 2863 216 7-blade fan 2806 070 torque drive unit the A31 (3.91:1) used a larger capacity "MAX COOLING" radiator 2998 949 with the 340 4bbl (A/C was not available)

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