8.5" GM Ten Bolt

greg fulk · 11-19-2008, 02:38 AM

the 8.2 died in 71...a 71 nova could have either an 82. or 8.5. Tod where you located? I have an 8.5 housing out of a 73 nova that will fit. if ya live close to Ohio I'll take $20 bucks for it...I think I have the axles too.

Jesse Knapp · 06-03-2009, 08:45 PM

Quote:

Originally Posted by greg fulk

the 8.2 died in 71...a 71 nova could have either an 82. or 8.5. Tod where you located? I have an 8.5 housing out of a 73 nova that will fit. if ya live close to Ohio I'll take $20 bucks for it...I think I have the axles too.

I have a 71 Nova with a 10 bolt. What do I look for to know if I have the large or small one? Is it maybe ring gear diameter? I knew this a long time ago but can't remember now. My thoughts were to just buy a complete 12 bolt from Strange, but it sounds like the big 10 bolt is plenty stout. Car came with a 307 and a glide. Still has the glide in it. I'm betting it's the small one.

Jesse Knapp · 06-04-2009, 07:41 AM

I have a horrible memory! I just this morning remember something about the ring gear bolts are larger on the 8.5. Is this how one tells and, if so, what is the size comparison?

skooter · 06-04-2009, 08:45 AM

http://www.novaresource.org/axle.htm

bobby · 06-04-2009, 09:06 AM

Quote:

Originally Posted by Jesse Knapp

I have a horrible memory! I just this morning remember something about the ring gear bolts are larger on the 8.5. Is this how one tells and, if so, what is the size comparison?

Not sure about the 8.2, but the 8.5 has 7/16 bolts. The 12 bolt has 3/8 bolts.

Dont' worry about the memory, you probably forgot more than most people will ever know.

Jesse Knapp · 06-04-2009, 03:53 PM

I am almost sure the ring gear bolts are larger on the 8.5. Thanks for posting the website address.

GTO/GN · 06-06-2009, 09:22 AM

I am using the 8.5 in my Grand National . I put Axles with C-clip ele. and a spool in it and using the stock 3.42 gears the car has run 9.64 at 140.11. Leaving off the trans brake at 20 lbs of boost on 28X10.5 Mickey Thompson slicks. It been hanging in there... The picture in my avatar photo is a pretty tipical launch for the car..
<--------<<<

rayfin · 06-10-2009, 09:27 AM

http://www.novas.net/forums/showthread.php?t=8049

The easiest way to ID an 8.5 seems to be the square things on the bottom below the diff. cover. See picture IMG_2217 (picture 4). I don't think there is a much difference between the 8.5 and a 12 bolt as far as strength.

11-19-2008, 02:38 AM	#1
greg fulk VIP Member Join Date: Jan 2003 Location: jackson Posts: 1,165 Likes: 0 Liked 5 Times in 3 Posts	Re: 8.5" GM Ten Bolt the 8.2 died in 71...a 71 nova could have either an 82. or 8.5. Tod where you located? I have an 8.5 housing out of a 73 nova that will fit. if ya live close to Ohio I'll take $20 bucks for it...I think I have the axles too. __________________ Greg Fulk 308 308X P/SA "ALL AMERICAN"

06-04-2009, 07:41 AM	#3
Jesse Knapp Member Join Date: Jan 2002 Posts: 109 Likes: 0 Liked 0 Times in 0 Posts	Re: 8.5" GM Ten Bolt I have a horrible memory! I just this morning remember something about the ring gear bolts are larger on the 8.5. Is this how one tells and, if so, what is the size comparison? __________________ Jesse Knapp 4899 STK, SS

06-04-2009, 08:45 AM	#4
skooter Junior Member Join Date: Dec 2002 Posts: 33 Likes: 0 Liked 0 Times in 0 Posts	Re: 8.5" GM Ten Bolt http://www.novaresource.org/axle.htm

06-04-2009, 03:53 PM	#6
Jesse Knapp Member Join Date: Jan 2002 Posts: 109 Likes: 0 Liked 0 Times in 0 Posts	Re: 8.5" GM Ten Bolt I am almost sure the ring gear bolts are larger on the 8.5. Thanks for posting the website address. __________________ Jesse Knapp 4899 STK, SS

06-06-2009, 09:22 AM	#7
GTO/GN Junior Member Join Date: Apr 2009 Location: Florida Posts: 38 Likes: 0 Liked 0 Times in 0 Posts	Re: 8.5" GM Ten Bolt I am using the 8.5 in my Grand National . I put Axles with C-clip ele. and a spool in it and using the stock 3.42 gears the car has run 9.64 at 140.11. Leaving off the trans brake at 20 lbs of boost on 28X10.5 Mickey Thompson slicks. It been hanging in there... The picture in my avatar photo is a pretty tipical launch for the car.. <--------<<<

06-10-2009, 09:27 AM	#8
rayfin Member Join Date: Mar 2009 Location: sioux city Posts: 134 Likes: 1 Liked 0 Times in 0 Posts	Re: 8.5" GM Ten Bolt http://www.novas.net/forums/showthread.php?t=8049 The easiest way to ID an 8.5 seems to be the square things on the bottom below the diff. cover. See picture IMG_2217 (picture 4). I don't think there is a much difference between the 8.5 and a 12 bolt as far as strength.

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Hybrid Mode Switch to Threaded Mode