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71 340 e-body diff #2453622 02/18/18 09:02 PM 02/18/18 09:02 PM
Joined: Sep 2004 Posts: 491 B BLACKHEMIRR OP mopar
BLACKHEMIRR OP mopar B Joined: Sep 2004 Posts: 491	Does anyone know what 8 3/4 case a 340 auto car would have come with if it was a 3.23? Could it have come with a 741 case, or would it have been a 489? Thanks in advance

Re: 71 340 e-body diff [Re: BLACKHEMIRR] #2453662 02/18/18 10:47 PM 02/18/18 10:47 PM
Joined: Mar 2010 Posts: 1,061 Atlanta, GA M mgoblue9798 super stock
mgoblue9798 super stock M Joined: Mar 2010 Posts: 1,061 Atlanta, GA	pretty sure it would have been 489 741 and 742 cases were older models

Re: 71 340 e-body diff [Re: BLACKHEMIRR] #2453766 02/19/18 02:27 AM 02/19/18 02:27 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	I have two 1970 741 cars, behind a 318 & 383. If you have a broadcast sheet for it, what is coded?

Re: 71 340 e-body diff [Re: BLACKHEMIRR] #2453775 02/19/18 02:58 AM 02/19/18 02:58 AM
Joined: Mar 2008 Posts: 9,550 Sacramento CA M Morty426 master
Morty426 master M Joined: Mar 2008 Posts: 9,550 Sacramento CA	should be a 489

Re: 71 340 e-body diff [Re: Morty426] #2453807 02/19/18 07:15 AM 02/19/18 07:15 AM
Joined: Sep 2004 Posts: 491 B BLACKHEMIRR OP mopar
BLACKHEMIRR OP mopar B Joined: Sep 2004 Posts: 491	I don't have a broadcast sheet unfortunately, but the dates look right anyway. The car is a H1B402... vin, and the 741 gears are dated April of 1971. It looks like the small u-joint driveshaft that's in it is original.

Re: 71 340 e-body diff [Re: Alaskan_TA] #2453820 02/19/18 10:51 AM 02/19/18 10:51 AM
Joined: Jan 2006 Posts: 2,368 White Plains, NY VCODE top fuel
VCODE top fuel Joined: Jan 2006 Posts: 2,368 White Plains, NY	Originally Posted By Alaskan_TA I have two 1970 741 cars, behind a 318 & 383. If you have a broadcast sheet for it, what is coded? My 71 340 Cuda with 3:23 open has a 741 Not sure if it is right or wrong yet. Bob Last edited by VCODE; 02/19/18 10:54 AM. Mom & Dad let me buy a brand new 70 Challenger R/T 440 Six-Pack Super Trac Pack when I was 17 (Robert what is a 440 Six-Pack)

Re: 71 340 e-body diff [Re: BLACKHEMIRR] #2453865 02/19/18 12:24 PM 02/19/18 12:24 PM
Joined: Jan 2012 Posts: 140 Akron, ohio 76orangewagon member
76orangewagon member Joined: Jan 2012 Posts: 140 Akron, ohio	My April 30 built 340 Cuda is coded for 019 Axle assembly on my build sheet which breaks down to a E body 3.23 S/G with 11 drum brakes 8.75 Rear end and a 1 7/8" Pinion and 7290 Yoke. A 1 7/8" pinion only came in 489 case.

Re: 71 340 e-body diff [Re: 76orangewagon] #2453891 02/19/18 01:08 PM 02/19/18 01:08 PM
Joined: Sep 2004 Posts: 491 B BLACKHEMIRR OP mopar
BLACKHEMIRR OP mopar B Joined: Sep 2004 Posts: 491	Thanks for all of your replies. I wonder if it's possible that the sure-grip cars got the 489 case, and the open cars got the 741's?

Re: 71 340 e-body diff [Re: BLACKHEMIRR] #2453911 02/19/18 01:49 PM 02/19/18 01:49 PM
Joined: Jan 2003 Posts: 27,453 So Cal autoxcuda Too Many Posts
autoxcuda Too Many Posts Joined: Jan 2003 Posts: 27,453 So Cal	I have a 71 challenger r/t N-code 383 HP with 3.23 open... 489 case

Re: 71 340 e-body diff [Re: BLACKHEMIRR] #2453927 02/19/18 02:23 PM 02/19/18 02:23 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	I know that the 741 was still in use for 1970 models in addition to the 489. There is a chart with the 1970 information at http://www.hamtramck-historical.com/images/TSBs/1970/D70-3-2%20page4.jpg My 1970 Valiant has a 3.23 741 while my 1970 Fury has a 3.23 489 & both are open with the small yoke. Both are called out on their broadcast sheets.

Re: 71 340 e-body diff [Re: BLACKHEMIRR] #2453930 02/19/18 02:31 PM 02/19/18 02:31 PM
Joined: Jan 2003 Posts: 27,453 So Cal autoxcuda Too Many Posts
autoxcuda Too Many Posts Joined: Jan 2003 Posts: 27,453 So Cal	I know a low mile 71 Demon 340 3.23 open, LA plant, with 741 case.

Re: 71 340 e-body diff [Re: Alaskan_TA] #2453966 02/19/18 03:46 PM 02/19/18 03:46 PM
Joined: Mar 2008 Posts: 9,550 Sacramento CA M Morty426 master
Morty426 master M Joined: Mar 2008 Posts: 9,550 Sacramento CA	Originally Posted By Alaskan_TA I know that the 741 was still in use for 1970 models in addition to the 489. There is a chart with the 1970 information at http://www.hamtramck-historical.com/images/TSBs/1970/D70-3-2%20page4.jpg My 1970 Valiant has a 3.23 741 while my 1970 Fury has a 3.23 489 & both are open with the small yoke. Both are called out on their broadcast sheets. Do you have a chart for 71? My 71 340 has axle code 015 - should be a 3.23 open

Re: 71 340 e-body diff [Re: BLACKHEMIRR] #2453969 02/19/18 03:52 PM 02/19/18 03:52 PM
Joined: Jan 2003 Posts: 5,106 Chicago Blackhawks H hemicar1971 master
hemicar1971 master H Joined: Jan 2003 Posts: 5,106 Chicago Blackhawks	I have a Nov.5 1970 SPD, build 383 1971 Cuda automatic that came with a 489 sure grip. One other in my family had a 1971 Cuda built in Dec. of 1970 that had a 489 Sure grip. 1971 HEMI E BODY REGISTRY

Re: 71 340 e-body diff [Re: BLACKHEMIRR] #2453970 02/19/18 03:53 PM 02/19/18 03:53 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	If anyone has a 1971 chart, I would love to see it also!

Re: 71 340 e-body diff [Re: BLACKHEMIRR] #2454028 02/19/18 05:37 PM 02/19/18 05:37 PM
Joined: Jan 2003 Posts: 3,114 Sacramento,California JRepucci master
JRepucci master Joined: Jan 2003 Posts: 3,114 Sacramento,California	71 340, D32, H51, SPD 601, axle code 017, 3.23 SG, 10" brakes, 489 case, 7290 u-joint

Re: 71 340 e-body diff [Re: JRepucci] #2454052 02/19/18 06:38 PM 02/19/18 06:38 PM
Joined: Jan 2003 Posts: 17,514 Las Vegas, NV 6bblgt I Live Here
6bblgt I Live Here Joined: Jan 2003 Posts: 17,514 Las Vegas, NV	eliminating the A-body axle assemblies 1970 E-Body: the "048" is a 741 w/2.76 ratio OPEN & 10" brakes the "100" is a 741 w/3.23 ratio OPEN & 10" brakes the "341" is a 741 w/3.23 ratio OPEN & 11" brakes the "049" is a 489 w/3.23 ratio OPEN & 10" brakes the "073" is a 489 w/3.23 ratio OPEN & 11" brakes there are a number (for use in "axle packages") that do not have an "*" for sure-grip anyone know what the "S" & "L" represent by the pinion diameter?

Re: 71 340 e-body diff [Re: BLACKHEMIRR] #2454070 02/19/18 06:58 PM 02/19/18 06:58 PM
Joined: Dec 2003 Posts: 4,951 northwest USA N NANKET master
NANKET master N Joined: Dec 2003 Posts: 4,951 northwest USA	S = Small 1 3/8 = 741 L = Large 1 7/8 = 489 Another way to tell 489 is the spacer column. 489 all had collapsible spacer, not shim.

Re: 71 340 e-body diff [Re: NANKET] #2454120 02/19/18 08:41 PM 02/19/18 08:41 PM
Joined: Aug 2003 Posts: 2,901 New Jersey Bada Bing bremotorsports master
bremotorsports master Joined: Aug 2003 Posts: 2,901 New Jersey Bada Bing	My 71 340 Cuda Convertible BS27H1B344342 Automatic I am 2nd titled owner. Original owner still with us. 741 Case, 3.23 Non-Sure Grip, 7260 U-joints Bill Rolik

Re: 71 340 e-body diff [Re: bremotorsports] #2454123 02/19/18 08:52 PM 02/19/18 08:52 PM
Joined: Jan 2006 Posts: 2,368 White Plains, NY VCODE top fuel
VCODE top fuel Joined: Jan 2006 Posts: 2,368 White Plains, NY	Originally Posted By bremotorsports My 71 340 Cuda Convertible BS27H1B344342 Automatic I am 2nd titled owner. Original owner still with us. 741 Case, 3.23 Non-Sure Grip, 7260 U-joints Bill Rolik Bill, what is your Broadcast sheet Assy # Bob Mom & Dad let me buy a brand new 70 Challenger R/T 440 Six-Pack Super Trac Pack when I was 17 (Robert what is a 440 Six-Pack)

Re: 71 340 e-body diff [Re: BLACKHEMIRR] #2454159 02/19/18 10:05 PM 02/19/18 10:05 PM
Joined: Jan 2003 Posts: 5,106 Chicago Blackhawks H hemicar1971 master
hemicar1971 master H Joined: Jan 2003 Posts: 5,106 Chicago Blackhawks	The S and L I would think it stands for stem diameter of the gears, Small or Large and refer to 1 3/4 for small and 1 7/8 large. 6bblgt is that chart for 1971 E Bodies. Looking at one 71 E Body BCS, here are some numbers under fourth line under axle 101, Line three under D axle 51. 1971 HEMI E BODY REGISTRY

Re: 71 340 e-body diff [Re: BLACKHEMIRR] #2454174 02/19/18 10:24 PM 02/19/18 10:24 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	That is the 1970 chart as mentioned above. It appears to have been stolen & modified though........ For the record, no one has permission to take images from HH, let alone modify them.

Re: 71 340 e-body diff [Re: VCODE] #2454204 02/19/18 10:54 PM 02/19/18 10:54 PM
Joined: Aug 2003 Posts: 2,901 New Jersey Bada Bing bremotorsports master
bremotorsports master Joined: Aug 2003 Posts: 2,901 New Jersey Bada Bing	Bob, Broadcast Sheet Axle Code 015 ALLEGEDLY, Code 015, at least as far as info I have seen to this point, indicates that for 71 E-Body with 3.23 standard axle, with 11" rear brakes and 7260 u-joints (both of which I have) shows the spec requires the 1-7/8" 489 diff. Sorry to disappoint any previously published info!!! Also, the date codes on the gearset are dead on for my car, and the diff assembly date (2/9/71) AND the ratio (3.23) are STAMPED DIRECTLY INTO THE DIFF CASE. No tag under and mounting nut. I will also state without question that my car was 100 % untouched prior to my acquisition, as verified by conversation with the original owner, as well as my observations during disassembly. Bill Rolik

Re: 71 340 e-body diff [Re: bremotorsports] #2454283 02/20/18 12:00 AM 02/20/18 12:00 AM
Joined: Jan 2006 Posts: 2,368 White Plains, NY VCODE top fuel
VCODE top fuel Joined: Jan 2006 Posts: 2,368 White Plains, NY	Originally Posted By bremotorsports Bob, Broadcast Sheet Axle Code 015 ALLEGEDLY, Code 015, at least as far as info I have seen to this point, indicates that for 71 E-Body with 3.23 standard axle, with 11" rear brakes and 7260 u-joints (both of which I have) shows the spec requires the 1-7/8" 489 diff. Sorry to disappoint any previously published info!!! Also, the date codes on the gearset are dead on for my car, and the diff assembly date (2/9/71) AND the ratio (3.23) are STAMPED DIRECTLY INTO THE DIFF CASE. No tag under and mounting nut. I will also state without question that my car was 100 % untouched prior to my acquisition, as verified by conversation with the original owner, as well as my observations during disassembly. Bill Rolik Thanks Bill, The info for my 014 is wrong in the white book listing it as a 3:55sg but the broadcast sheet list it as a 3:23 open Bob Mom & Dad let me buy a brand new 70 Challenger R/T 440 Six-Pack Super Trac Pack when I was 17 (Robert what is a 440 Six-Pack)

Re: 71 340 e-body diff [Re: 6bblgt] #2454437 02/20/18 08:56 AM 02/20/18 08:56 AM
Joined: Jan 2003 Posts: 17,514 Las Vegas, NV 6bblgt I Live Here
6bblgt I Live Here Joined: Jan 2003 Posts: 17,514 Las Vegas, NV	1971 E-Body: the "014" axle is a 741 case 7260 pinion w/3.23 ratio OPEN & 10" brakes the "015" axle is a 741 case 7260 pinion w/3.23 ratio OPEN & 11" brakes the "016" axle is a 489 case 7290 pinion w/3.23 ratio OPEN & 10" brakes the "017" axle is a 489 case 7290 pinion w/3.23 ratio Sure-Grip & 10" brakes the "018" axle is a 489 case 7290 pinion w/3.23 ratio OPEN & 11" brakes the "019" axle is a 489 case 7290 pinion w/3.23 ratio Sure-Grip & 11" brakes

Re: 71 340 e-body diff [Re: 6bblgt] #2454452 02/20/18 10:54 AM 02/20/18 10:54 AM
Joined: Jan 2006 Posts: 2,368 White Plains, NY VCODE top fuel
VCODE top fuel Joined: Jan 2006 Posts: 2,368 White Plains, NY	Originally Posted By 6bblgt 1971 E-Body: the "014" axle is a 741 case 7260 pinion w/3.23 ratio OPEN & 10" brakes the "015" axle is a 741 case 7260 pinion w/3.23 ratio OPEN & 11" brakes the "016" axle is a 489 case 7290 pinion w/3.23 ratio OPEN & 10" brakes the "017" axle is a 489 case 7290 pinion w/3.23 ratio Sure-Grip & 10" brakes the "018" axle is a 489 case 7290 pinion w/3.23 ratio OPEN & 11" brakes the "019" axle is a 489 case 7290 pinion w/3.23 ratio Sure-Grip & 11" brakes Dan, your the man. That's what I been trying to figure out. Exactly what I have. Thanks Bob Mom & Dad let me buy a brand new 70 Challenger R/T 440 Six-Pack Super Trac Pack when I was 17 (Robert what is a 440 Six-Pack)

Re: 71 340 e-body diff [Re: BLACKHEMIRR] #2454738 02/20/18 08:18 PM 02/20/18 08:18 PM
Joined: Jan 2003 Posts: 5,106 Chicago Blackhawks H hemicar1971 master
hemicar1971 master H Joined: Jan 2003 Posts: 5,106 Chicago Blackhawks	Were does 101 on the broadcast sheet of a 1971 Challenger fit into the list. There must be more to the list and this 101 could be a 8 3/4 likely open either 741 or 489 case with 10 inch drums and 276 gears.

Re: 71 340 e-body diff [Re: 6bblgt] #2454760 02/20/18 09:17 PM 02/20/18 09:17 PM
Joined: Jan 2003 Posts: 17,514 Las Vegas, NV 6bblgt I Live Here
6bblgt I Live Here Joined: Jan 2003 Posts: 17,514 Las Vegas, NV	1971 E-Body: the "101" axle is a 741 case 7260 pinion w/2.76 ratio OPEN & 10" brakes

Re: 71 340 e-body diff [Re: 6bblgt] #2454836 02/20/18 11:21 PM 02/20/18 11:21 PM
Joined: Mar 2008 Posts: 9,550 Sacramento CA M Morty426 master
Morty426 master M Joined: Mar 2008 Posts: 9,550 Sacramento CA	Originally Posted By 6bblgt 1971 E-Body: the "014" axle is a 741 case 7260 pinion w/3.23 ratio OPEN & 10" brakes the "015" axle is a 741 case 7260 pinion w/3.23 ratio OPEN & 11" brakes the "016" axle is a 489 case 7290 pinion w/3.23 ratio OPEN & 10" brakes the "017" axle is a 489 case 7290 pinion w/3.23 ratio Sure-Grip & 10" brakes the "018" axle is a 489 case 7290 pinion w/3.23 ratio OPEN & 11" brakes the "019" axle is a 489 case 7290 pinion w/3.23 ratio Sure-Grip & 11" brakes So what is the trigger between getting a "015" vs. a "018" - my 71 340 Challenger is a 4 speed and Bill's 71 cuda 340 is an automatic yet we both have "015" ????

Re: 71 340 e-body diff [Re: Morty426] #2454970 02/21/18 05:35 AM 02/21/18 05:35 AM
Joined: Jan 2003 Posts: 17,514 Las Vegas, NV 6bblgt I Live Here
6bblgt I Live Here Joined: Jan 2003 Posts: 17,514 Las Vegas, NV	next someone will want to know WHY? some '71s with disc brakes have 11" rear drums I'll take a look & see what I can find

Re: 71 340 e-body diff [Re: Morty426] #2454975 02/21/18 06:56 AM 02/21/18 06:56 AM
Joined: Jan 2003 Posts: 17,514 Las Vegas, NV 6bblgt I Live Here
6bblgt I Live Here Joined: Jan 2003 Posts: 17,514 Las Vegas, NV	Originally Posted By Morty426 So what is the trigger between getting a "015" vs. a "018" - my 71 340 Challenger is a 4 speed and Bill's 71 cuda 340 is an automatic yet we both have "015" ???? for 1971 E-body 3.23:1 OPEN 8-3/4" rear axle - it looks like it is as simple as small block VS. big block (can't confirm where the 383 2bbl ends up?) 10" brakes = "014" (318 & 340) 741 VS. "016" (383 4bbl, 6bbl, HEMI) 489 & 11" brakes = "015" (318 & 340) 741 VS. "018" (383 4bbl, 6bbl, HEMI) 489

Re: 71 340 e-body diff [Re: 6bblgt] #2455075 02/21/18 01:59 PM 02/21/18 01:59 PM
Joined: Mar 2008 Posts: 9,550 Sacramento CA M Morty426 master
Morty426 master M Joined: Mar 2008 Posts: 9,550 Sacramento CA	Originally Posted By 6bblgt Originally Posted By Morty426 So what is the trigger between getting a "015" vs. a "018" - my 71 340 Challenger is a 4 speed and Bill's 71 cuda 340 is an automatic yet we both have "015" ???? for 1971 E-body 3.23:1 OPEN 8-3/4" rear axle - it looks like it is as simple as small block VS. big block (can't confirm where the 383 2bbl ends up?) 10" brakes = "014" (318 & 340) 741 VS. "016" (383 4bbl, 6bbl, HEMI) 489 & 11" brakes = "015" (318 & 340) 741 VS. "018" (383 4bbl, 6bbl, HEMI) 489 Cool. That makes sense. Now why did some disk brake cars get 11" rear brakes?

Re: 71 340 e-body diff [Re: Alaskan_TA] #2455472 02/22/18 05:01 AM 02/22/18 05:01 AM
Joined: Nov 2004 Posts: 1,923 Medina, Ohio HEMICUDA top fuel
HEMICUDA top fuel Joined: Nov 2004 Posts: 1,923 Medina, Ohio	Originally Posted By Alaskan_TA That is the 1970 chart as mentioned above. It appears to have been stolen & modified though........ For the record, no one has permission to take images from HH, let alone modify them. Let me get this straight, you "steal" it from Chrysler, put your website watermark on it so it's yours? Oh Please, take your ball and go home.

Re: 71 340 e-body diff [Re: HEMICUDA] #2455570 02/22/18 01:17 PM 02/22/18 01:17 PM
Joined: Sep 2009 Posts: 702 WV L Little Detroit super stock
Little Detroit super stock L Joined: Sep 2009 Posts: 702 WV	get em mike

Re: 71 340 e-body diff [Re: HEMICUDA] #2455623 02/22/18 02:47 PM 02/22/18 02:47 PM
Joined: Apr 2012 Posts: 18,880 - R RSNOMO Moparts Torchbearer
RSNOMO Moparts Torchbearer R Joined: Apr 2012 Posts: 18,880 -	Originally Posted By HEMICUDA Originally Posted By Alaskan_TA That is the 1970 chart as mentioned above. It appears to have been stolen & modified though........ For the record, no one has permission to take images from HH, let alone modify them. Let me get this straight, you "steal" it from Chrysler, put your website watermark on it so it's yours? Oh Please, take your ball and go home. Funny how that works...

Re: 71 340 e-body diff [Re: RSNOMO] #2455853 02/22/18 10:20 PM 02/22/18 10:20 PM
Joined: Sep 2003 Posts: 636 SE PA C cudaize mopar
cudaize mopar C Joined: Sep 2003 Posts: 636 SE PA	71 340 Cuda, auto 3/31 SPD 015: on broadcast G015: stenciled on housing 741 carrier 7260 u joints.

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