AXLE VENT BOLT - Is there only one size for the 8 3/4?? - Moparts Forums

Register Log In Moparts Forums Moparts Question and Answer AXLE VENT BOLT - Is there only one size for the 8 3/4??

Print Thread

AXLE VENT BOLT - Is there only one size for the 8 3/4?? #115748 09/05/08 07:17 PM 09/05/08 07:17 PM
Joined: Jul 2005 Posts: 1,499 Slidell, LA Plum440 OP pro stock
Plum440 OP pro stock Joined: Jul 2005 Posts: 1,499 Slidell, LA	I just received my axle vent bolt, went to install and discovered the hole in the axle is too small! I purchased the 8 3/4 for my Challenger (stepping up from a six banger) and was told it was taken from a Challenger. I measured the perches and flanges and it was all legit. The axle bolt I have looks to be a 11/16" (compared to a bolt size) whereas the hole in the axle appears to only accept a 1/2" bolt. Is there different size axle vent bolts for a 8 3/4??? Thanks 70 Challenger, 440, 4-speed, pLuM cRaZy 71 VW Super Beetle Convertible, Lemon Yellow A couple of Jeeps…

Re: AXLE VENT BOLT - Is there only one size for the 8 3/4?? [Re: Plum440] #115749 09/05/08 07:38 PM 09/05/08 07:38 PM
Joined: Jun 2003 Posts: 21,442 It's a dry heat gtx6970 Too Many Posts
gtx6970 Too Many Posts Joined: Jun 2003 Posts: 21,442 It's a dry heat	afaik 8-3/4 and dana are all the same 7-1/4 is different though

Re: AXLE VENT BOLT - Is there only one size for the 8 3/4?? [Re: Plum440] #115750 09/05/08 08:21 PM 09/05/08 08:21 PM
Joined: Jan 2003 Posts: 8,016 Polson, MT DoctorDiff master
DoctorDiff master Joined: Jan 2003 Posts: 8,016 Polson, MT	All the vintage Mopar housings use the same vent bolt with 7/16-20 thread. Contact info

Re: AXLE VENT BOLT - Is there only one size for the 8 3/4?? [Re: Plum440] #115751 09/05/08 08:57 PM 09/05/08 08:57 PM
Joined: Feb 2008 Posts: 711 Montana P Posest super stock
Posest super stock P Joined: Feb 2008 Posts: 711 Montana	I agree. The rear out of my 4 cyl dakota had the same vent as my 8-3/4

Re: AXLE VENT BOLT - Is there only one size for the 8 3/4?? [Re: gtx6970] #115752 09/06/08 07:42 AM 09/06/08 07:42 AM
Joined: Jul 2005 Posts: 1,499 Slidell, LA Plum440 OP pro stock
Plum440 OP pro stock Joined: Jul 2005 Posts: 1,499 Slidell, LA	Can anyone tell me the size of the vent bolt for a 7 1/4 axle? 70 Challenger, 440, 4-speed, pLuM cRaZy 71 VW Super Beetle Convertible, Lemon Yellow A couple of Jeeps…

Re: AXLE VENT BOLT - Is there only one size for the 8 3/4?? [Re: Plum440] #115753 09/06/08 09:57 AM 09/06/08 09:57 AM
Joined: Oct 2007 Posts: 33 Motor City 6 68cuda27 member
68cuda27 member 6 Joined: Oct 2007 Posts: 33 Motor City	The 7 1/4 axles I have from '68-'69 do not have vented bolts. The vent is adjacent to the brake junction and is welded to the axle housing.

Re: AXLE VENT BOLT - Is there only one size for the 8 3/4?? [Re: 68cuda27] #115754 09/06/08 10:06 AM 09/06/08 10:06 AM
Joined: Jan 2003 Posts: 13,601 md M mopars4ever I Live Here
mopars4ever I Live Here M Joined: Jan 2003 Posts: 13,601 md	I think old dodge trucks had a bigger vent bolt. I bought one from a guy on ebay selling surplus government truck parts and when I got it I noticed it was too big. Anyone know for sure?

Re: AXLE VENT BOLT - Is there only one size for the 8 3/4?? [Re: Plum440] #115755 09/06/08 06:14 PM 09/06/08 06:14 PM
Joined: Feb 2008 Posts: 711 Montana P Posest super stock
Posest super stock P Joined: Feb 2008 Posts: 711 Montana	If you need one let me know. The size is what doc diff said.

Moderated by Al_Alguire, Hotwheelsjr, moparts, not_a_charger, RangerDan440, tboomer

Hop To

Powered by UBB.threads™ PHP Forum Software 7.7.1