DodgeCharger.com Forum

Mopar Garage => Engine, Transmission, Rearend, & Exhaust => Topic started by: Silver Charger on May 17, 2006, 08:29:04 PM

Title: original rear end '68 Charger
Post by: Silver Charger on May 17, 2006, 08:29:04 PM
Anyone know what the stock rear end is for a '68 Charger R/T with a 440 ?
Title: Re: original rear end '68 Charger
Post by: TylerCharger69 on May 17, 2006, 08:59:52 PM
that would be a 742 case......it can vary on the ratio though...I'm going to guess the most common were 3:23   and 3:55 sure grips  there may be others, but that would be the most popular.  Is the differential tag not on yours??
Title: Re: original rear end '68 Charger
Post by: 8WHEELER on May 17, 2006, 11:58:18 PM
The 68 R/T Charger with an 8 3/4 rear would have  ''as said above'' 742 case, 95% chance to have 323
gears with an auto car, because most every 4sp car would have a Dana. Anyway I have never seen a
68 auto car with 355's the only other gears I have seen in an auto car was 391's and that is rare as hell  ;D

So like the saying goes anything is possible, but not likely, so 323's maybe or maybe not a suregrip was stock....

Dan
Title: Re: original rear end '68 Charger
Post by: TylerCharger69 on May 18, 2006, 12:10:42 AM
 :iagree:   I didn't mention the 3:91...that would be rare....yes....I just ASSUMED it was a sure grip,  or an R/T car
Title: Re: original rear end '68 Charger
Post by: TylerCharger69 on May 18, 2006, 12:13:12 AM
Oops...scuze me..."in"  an R/T car....not   "or" an R/T car...lol....geeeeeeeeees    I'm going to bed.... :icon_smile_dead:
Title: Re: original rear end '68 Charger
Post by: 8WHEELER on May 18, 2006, 12:45:27 AM
 :haha: :smilielol:
Title: Re: original rear end '68 Charger
Post by: Just 6T9 CHGR on May 18, 2006, 09:07:18 AM
In 69, to my knowledge, 3.91's were not offered in any Charger....not sure about 68's though

The base rear for an auto car was a non Sure-Grip 3.23 ratio 8¾ rear.....
The Sure-Grip was optional.
The optional 8¾ rear was the Sure-Grip equipped 3.55 ratio with auto trans
The next step up would be the Super Perf Axle package 4.10 Dana rear for an auto

4-speed cars came standard with a 3.54 Dana or optional 4.10 Dana

I've yet to see a '69 with the A31
Title: Re: original rear end '68 Charger
Post by: 694spdRT on May 18, 2006, 07:26:36 PM
So the A31 High Performance package with 3.91's was not available in the Charger...learned something new today.
Title: Re: original rear end '68 Charger
Post by: TylerCharger69 on May 18, 2006, 08:31:04 PM
yeah...I new 3:23  was most popular in that case....I figure 3:55  was a rare option....but I knew 3:91  wasn't available too.  Open or Sure grip....I'm not sure about that though, but I'm sure there are those here who do know :icon_smile_wink:
Title: Re: original rear end '68 Charger
Post by: Just 6T9 CHGR on May 18, 2006, 09:02:45 PM
Quote from: 694spdRT on May 18, 2006, 07:26:36 PM
So the A31 High Performance package with 3.91's was not available in the Charger...learned something new today.

Not in 69 at least.   I think that was a RR /Super Bee package
Title: Re: original rear end '68 Charger
Post by: 694spdRT on May 18, 2006, 10:34:26 PM
Quote from: Just 6T9_CHGR.... on May 18, 2006, 09:02:45 PM
Quote from: 694spdRT on May 18, 2006, 07:26:36 PM
So the A31 High Performance package with 3.91's was not available in the Charger...learned something new today.

Not in 69 at least.   I think that was a RR /Super Bee package

Thanks for the info Chris. If non RT's were not available with any gear above 3.55 in the 8 3/4" rear could a 4.10 Dana be optioned out on a non R/T car?
Title: Re: original rear end '68 Charger
Post by: 8WHEELER on May 19, 2006, 12:28:05 AM
A friend of mine has had his JJ1 Gold 68 R/T since 1977, he bought it from the original owner. He told me
in 1980 she ordered the car with pass side headrest delete ''she was 5' tall'' and 391's, I told him at the time oh right sure!!
But over the years I found this to be true, you could order most anything, but it was ordered.

Dan
Title: Re: original rear end '68 Charger
Post by: Just 6T9 CHGR on May 19, 2006, 09:10:08 AM
Quote from: 694spdRT on May 18, 2006, 10:34:26 PM
Quote from: Just 6T9_CHGR.... on May 18, 2006, 09:02:45 PM
Quote from: 694spdRT on May 18, 2006, 07:26:36 PM
So the A31 High Performance package with 3.91's was not available in the Charger...learned something new today.

Not in 69 at least.   I think that was a RR /Super Bee package

Thanks for the info Chris. If non RT's were not available with any gear above 3.55 in the 8 3/4" rear could a 4.10 Dana be optioned out on a non R/T car?

Not to my knowledge.  the A32 Super Performance Package was only available with 426/440 autos as well as the A34 Super Track Pack with the 4-speed
Title: Re: original rear end '68 Charger
Post by: hemigeno on May 23, 2006, 05:43:20 PM
Based on the Dealer Data book, the A31 High Performance Package (3.91 suregrip) was available on Chargers.  Chris, that's even spelled out in the Confidential Price Bulletin I gave you a copy of...  :P   MSRP of $102.15

However, the 3.91 ratio wasn't available in an R/T (440 or 426 cars).  Only the 383 4bbl cars (auto or 4-speed) were offered that axle ratio, as they couldn't get the 4.10 Dana.

I didn't even realize that was the case until I read this thread, as I thought that axle was offered on 440/426 auto cars.  Learned something too!

Geno
Title: Re: original rear end '68 Charger
Post by: hemigeno on May 23, 2006, 05:47:10 PM
Quote from: 694spdRT on May 18, 2006, 10:34:26 PM
Quote from: Just 6T9_CHGR.... on May 18, 2006, 09:02:45 PM
Quote from: 694spdRT on May 18, 2006, 07:26:36 PM
So the A31 High Performance package with 3.91's was not available in the Charger...learned something new today.

Not in 69 at least.   I think that was a RR /Super Bee package

Thanks for the info Chris. If non RT's were not available with any gear above 3.55 in the 8 3/4" rear could a 4.10 Dana be optioned out on a non R/T car?

Supposedly nothing above 3.91 on a non-R/T - but that doesn't cover the Bronze '69 non-R/T prototype that had a Hemi automatic in it...   :stirthepot:
Title: Re: original rear end '68 Charger
Post by: 694spdRT on May 23, 2006, 06:26:34 PM
Quote from: hemigeno on May 23, 2006, 05:43:20 PM
Based on the Dealer Data book, the A31 High Performance Package (3.91 suregrip) was available on Chargers.  Chris, that's even spelled out in the Confidential Price Bulletin I gave you a copy of...  :P   MSRP of $102.15

However, the 3.91 ratio wasn't available in an R/T (440 or 426 cars).  Only the 383 4bbl cars (auto or 4-speed) were offered that axle ratio, as they couldn't get the 4.10 Dana.

I didn't even realize that was the case until I read this thread, as I thought that axle was offered on 440/426 auto cars.  Learned something too!

Geno

I figured the 3.91 was not available in the R/T due to the availability of the 4.10 Dana. It was the 383 4 speed cars that got me thinking because of the apparent lack of available gears. My brother-in-laws Hemi orange '70 383 4 speed has the A36 package(3.55's). The car has no power steering or power brakes and it has the V21 hood treatment. I always thought if any Charger would have had 3.91's originally that would have been it.
Title: Re: original rear end '68 Charger
Post by: TylerCharger69 on May 23, 2006, 06:41:06 PM
Out of curiosity....does that Hemi prototype shown in the picture still exist????   I'd like to see some color photos of it if it does!!!
Title: Re: original rear end '68 Charger
Post by: hemigeno on May 23, 2006, 07:15:14 PM
[thread hijack in progress]

Quote from: TylerCharger69 on May 23, 2006, 06:41:06 PM
Out of curiosity....does that Hemi prototype shown in the picture still exist????   I'd like to see some color photos of it if it does!!!



I don't know if I have one, but I've seen a color pic posted on this site before.  One of the advertisers in MCGuide uses that color picture in their advertisements.  I'll search around to see if I can find a good pic. 

There are a lot of people who would love to find that car, but I don't think it exists anymore.  We've speculated in the past whether you could order a Hemi Charger without the R/T package, and the 1969 dealer's order form for a Charger indicates you can.  That press release car also proves that it could be done before.  I have some real good actual photos of that car (even though they're in B&W), and they show the torque boxes, plus the automatic transmission cooler lines only found on HemiAuto cars.  I am convinced its a legitimate non-R/T Hemicar.

[/thread hijack]
Title: Re: original rear end '68 Charger
Post by: Just 6T9 CHGR on May 24, 2006, 09:15:45 AM
Quote from: hemigeno on May 23, 2006, 05:43:20 PM
Based on the Dealer Data book, the A31 High Performance Package (3.91 suregrip) was available on Chargers.  Chris, that's even spelled out in the Confidential Price Bulletin I gave you a copy of...  :P   MSRP of $102.15

However, the 3.91 ratio wasn't available in an R/T (440 or 426 cars).  Only the 383 4bbl cars (auto or 4-speed) were offered that axle ratio, as they couldn't get the 4.10 Dana.

I didn't even realize that was the case until I read this thread, as I thought that axle was offered on 440/426 auto cars.  Learned something too!

Geno

I did see that Geno, but figured it might have been an early addition to the line up and discontinued before production.
Out of the almost 800 Chargers I have in the registry, I do not and have never seen a 69 Charger with the A31 option.....R/T or not
I guess never say never but until I get one in the registry Ill say never ;)
Title: Re: original rear end '68 Charger
Post by: hemigeno on May 24, 2006, 09:30:46 AM
Has the "other" Chris logged any into the '70 Registry, or was A31 even listed as an available option that year?

Just like you, I know better than to say always, definitely, or never with MaMopar...   ;D
Title: Re: original rear end '68 Charger
Post by: Just 6T9 CHGR on May 24, 2006, 06:13:11 PM
Chris said he has 2 XP 383 & 1 XH cars with the A31 option......all very close in build date
Title: Re: original rear end '68 Charger
Post by: 69CoronetRT on June 11, 2006, 12:18:49 AM
Quote from: 8WHEELER on May 17, 2006, 11:58:18 PM
The 68 R/T Charger with an 8 3/4 rear would have  ''as said above'' 742 case, 95% chance to have 323
gears with an auto car, because most every 4sp car would have a Dana. Anyway I have never seen a
68 auto car with 355's the only other gears I have seen in an auto car was 391's and that is rare as hell  ;D

So like the saying goes anything is possible, but not likely, so 323's maybe or maybe not a suregrip was stock....

The 489 case was introduced late in the 68 model year so the possibility exists a 68 R/T with automatic could have a 489. The Sure Grip was optional.

It appears that 318 and 383 2bbl cars with A/C came with 2.76 standard but I do have a 68 Charger tag from a non A/C car with 2.76 and one showing 3.23s.

The 3.55 gears are sales coded to the 383-4bbl cars only so I don't think you'll find a 68 R/T Charger equipped with them but if you want to see them listed on a fake tag I can help. I have several 68 Super Bee and Road Runner tags coded for 3.55's but no Chargers.

3.91's available on 383-4bbl cars 69-71
Title: Re: original rear end '68 Charger
Post by: Just 6T9 CHGR on June 11, 2006, 05:44:32 PM
Quote from: 69CoronetRT on June 11, 2006, 12:18:49 AM
Quote from: 8WHEELER on May 17, 2006, 11:58:18 PM
The 68 R/T Charger with an 8 3/4 rear would have  ''as said above'' 742 case, 95% chance to have 323
gears with an auto car, because most every 4sp car would have a Dana. Anyway I have never seen a
68 auto car with 355's the only other gears I have seen in an auto car was 391's and that is rare as hell  ;D

So like the saying goes anything is possible, but not likely, so 323's maybe or maybe not a suregrip was stock....

The 489 case was introduced late in the 68 model year so the possibility exists a 68 R/T with automatic could have a 489. The Sure Grip was optional.

It appears that 318 and 383 2bbl cars with A/C came with 2.76 standard but I do have a 68 Charger tag from a non A/C car with 2.76 and one showing 3.23s.

The 3.55 gears are sales coded to the 383-4bbl cars only so I don't think you'll find a 68 R/T Charger equipped with them but if you want to see them listed on a fake tag I can help. I have several 68 Super Bee and Road Runner tags coded for 3.55's but no Chargers.

3.91's available on 383-4bbl cars 69-71

Welcome to the site Doug :cheers: