8.75 3rd member

[Bandit72]

will all the 3rd members swap between the different housings? I have a 3.91 sure grip from a 64 Dodge truck and was wondering if i could use the "chunk" in a 8.75 housing for my charger..

thanks

later 

[chargerbr549]

It should bolt right in, I did the basic same thing on my 69 Charger, its the light duty 741 case 3.91 suregrip that came out of about the same year of pick-up, I have just regular street tires so I haven't had any problems with it breaking the light duty pinion. A couple of areas to what out for, (1) is there is a pin and two buttons that go in the middle of the suregrip, alot of times they fall out when you pull out the axles so make sure they are in there and(2) you might have to get a different yoke to mate up to your driveshaft or get a conversion u-joint that will mate the two different sizes of yokes. I hope this helps. Kevin

[Chryco Psycho]

 

[8WHEELER]

I have used several 741 cases with 391's in them, most I got out of 65 Dodge Vans, they work great, I just
had to install the large yoke.

Dan

[chrisII]

i use the convershon u joint.I hate messing with yokes, unless its leaking your better off leaving it alone IMO