Posted By: Dons Dart
8 3/4 yoke - 11/27/14 03:21 PM
Was wondering why did they make an 8 3/4 with the big and Small yoke? what are the pros and cons.
8 3/4 yoke
Posted By: gofastboater
Re: 8 3/4 yoke - 11/27/14 03:28 PM
Because they could. Bigger is better.
Posted By: Dons Dart
Re: 8 3/4 yoke - 11/27/14 03:42 PM
Thanks.,so i just bought the 8 3/4 with the small one should i be conserend with standing on it?
Posted By: Dons Dart
Re: 8 3/4 yoke - 11/27/14 03:42 PM
Quote:
Thanks.,so i just bought the 8 3/4 489 with the small one should i be conserend with standing on it?
Posted By: ohiodemon
Re: 8 3/4 yoke - 11/27/14 04:10 PM
i think the larger yokes were used in big block and large body cars.
Posted By: scratchnfotraction
Re: 8 3/4 yoke - 11/27/14 05:06 PM
Quote:
i think the larger yokes were used in big block and large body cars.
correct.
my 67 8 3/4 polara has the large 1330 yoke and was only on 426/440HP cars.
I have stomped on many small 7260 yokes/joints from cars to 4x4 and never had any break..u-joints wear out and fail but never broke a yoke.
unless you are high HP with sticky tires your good to go.IMHO.
Posted By: therocks
Re: 8 3/4 yoke - 11/27/14 05:57 PM
My 65 B body factory 361 with 4 speed had the small joint.I popped a few till I found the yoke was bad.Replaced it about 30 years ago with a good small yoke and its still alive with the built 440.My Imps did have the big joints.When I go Dana Ill go large joint only because I have to change the drive shaft.Rocky
Posted By: RapidRobert
Re: 8 3/4 yoke - 11/27/14 06:36 PM
You'll be fine. Just get a good made in USA brand & after installation make SURE it moves free back & forth by hand (rear ujoint) and front ujoint/trans yoke moves free back & forth in both planes. If it dont, whack the ears till it does
Posted By: Dons Dart
Re: 8 3/4 yoke - 11/27/14 07:28 PM
Thanks guy happy turkey day.
Posted By: John_Kunkel
Re: 8 3/4 yoke - 11/27/14 08:58 PM
Quote:
Thanks.,so i just bought the 8 3/4 with the small one should i be conserend with standing on it?
Max Wedge and '64-'65 Hemi cars had the small yoke.
Posted By: TJP
Re: 8 3/4 yoke - 11/27/14 10:17 PM
Quote:Quote:
i think the larger yokes were used in big block and large body cars.
correct.
my 67 8 3/4 polara has the large 1330 yoke and was only on 426/440HP cars.
Disagree, The 340 small block 68-9 darts had the bigger joints as did many other applications.
Why?? because they were stronger. But I will agree the small joints will take a lot of abuse
Posted By: Cab_Burge
Re: 8 3/4 yoke - 11/27/14 11:25 PM
Quote:The only true answer is probally in Mopar decision makers corrosponces
Was wondering why did they make an 8 3/4 with the big and Small yoke? what are the pros and cons.
All the early cars, 1963 and earlier had the 7260 rear joints, ball and trunion front joints of severl difference sizes 
Once the 5 year 50,000 mile warrenty was started in 1962 or 1963 it probally made since to make parts stronger, especially with the HP wars, race on Sunday, sell on Monday and pony car wars started. The beefeir parts where probally put on the cars so they wouldn't have to replace them under warrenty and pay the dealers shop mechanics to fix them, as well as seeing cars break parts at the track wasn't good advertising either 
Posted By: Dons Dart
Re: 8 3/4 yoke - 11/28/14 01:40 AM
Great info boys,this 489 surgrip 323 gear has the small yoke the seller has told me,i should be delivered tomorrow.I all ready have the 489 with 323 not suregrip,i have to admit i have no clue what yoke it is,the old 7 1/4 witch was in the car that joint bolted right on.
Posted By: sam64
Re: 8 3/4 yoke - 11/28/14 01:49 AM
I had the small ujoints in my 10.80's @123 3300lb 63 belvedere,mid 1.50 60fts on 29.5x9x15 m/t slicks.i put a dana 60 in it last winter and went to 1350 yokes and it hasn't been on the track since.
Posted By: RapidRobert
Re: 8 3/4 yoke - 11/28/14 02:11 AM
Quote:likely 7260 on the 7&1/4. You may not even need a ujoint change. You'll know tomorrow
This 489 surgrip 323 gear has the small yoke should be delivered tomorrow.I all ready have the 489 with 323 not suregrip,i have to admit i have no clue what yoke it is,the old 7 1/4 witch was in the car that joint bolted right on.