Hot Rods Differential Yoke question

Differentials are not my expertise.Have a question in regard to differential( yokes) , the portion on the differential that connects to the driveshft.

I will be having a driveshaft made to connect to a 9" Differential. I was told that the yoke I will need is a 1310. What does the number 1310 mean , what universal joint will it require with this yoke and do all 9" Ford Differential use the 1310 Yoke ? Gene

 

Google found good info here-
http://www.driveshaftspe******t.com/HTML Measure/UJ ID Guide.html

and here-
http://www.dennysdriveshaft.com/c58_ford_9_inch.html

 

Ford had a few different yokes on their 9 inch rear, as I recently discovered when I bought a new 3.70 rear to replace the 4.30 rear I had been running. When I put it in, I found I had to have my driveshaft lengthened an inch and a half because the 1310 yoke that came with my new one was shorter than the old one.

You can get that 1310 yoke at any driveline shop and Speedway sells them too. Get the correct U bolts with them too as there are different ones for different yokes.

http://www.speedwaymotors.com/9-Inch-Ford-Small-Yoke,1285.html

Don

 

1310 was used on the older 9" rears, and lighter duty applications. The 1330 was used in trucks and later, bigger cars. There are a couple different lengths of yoke that Ford used, also. The 1330 series ujoint has the same size caps as the 1310, it's just wider across.

Guys who go fast use 1350 ujoints...and guys who go really fast use even bigger ones.

 

1310 is an inside clip retainer , 1350 is an outside snap ring retainer

 

1310, 1330,and 1350 have the same retaining arrangement. They are just different sizes.

 

1310 are good for up to 500hp;
1330 are good for up to 700hp; and
1350 700hp+hp with maximum length of 35";
Are you using greaseable or solid U-joints, length of tail shaft and tube diameter may also need to be taken into consideration? As stated:-
1310 is 3.219" (3 7/32") wide in both directions across bearing caps with 1.062" (1 1/16") diameter;
1330 is 3.625" (3 5/8") wide in both directions across bearing caps with 1.062" (1 1/16") diameter; and
1350 is 3.625" (3 5/8") wide in both directions across bearing caps with 1.187" (1 3/16") diameter.