|
Register or Log In To remove these advertisements. |
|
|
|
|||||||
 |
|
|
Thread Tools | Display Modes |
|
|
09-15-2022, 09:33 PM
|
#1 |
|
Active Member
 Join Date: Dec 2020
Location: Lusby, MD
Posts: 132
|
ISO Blazer Jimmy spare tire carrier carriage bolt
ISO Blazer Jimmy spare tire carrier carriage bolt & possible nut
|
|
|
|
09-16-2022, 07:35 PM
|
#2 |
|
Senior Member
 Join Date: May 2011
Location: Greencastle PA
Posts: 6,807
|
Re: ISO Blazer Jimmy spare tire carrier carriage bolt
The nut is a just a normal lug nut
|
|
|
|
|
09-16-2022, 07:38 PM
|
#3 |
|
Active Member
Join Date: Dec 2020
Location: Lusby, MD
Posts: 132
|
Re: ISO Blazer Jimmy spare tire carrier carriage bolt
Cool thanks, Do you happen to have a bolt I can buy or borrow?
|
|
|
|
|
09-16-2022, 07:40 PM
|
#4 |
|
Senior Member
Join Date: May 2011
Location: Greencastle PA
Posts: 6,807
|
Re: ISO Blazer Jimmy spare tire carrier carriage bolt
You can borrow the one in the picture, I'm pretty sure that's mine, lol
|
|
|
|
|
09-16-2022, 08:03 PM
|
#5 | |
|
Active Member
Join Date: Dec 2020
Location: Lusby, MD
Posts: 132
|
Re: ISO Blazer Jimmy spare tire carrier carriage bolt
Quote:
|
|
|
|
|
|
09-16-2022, 08:17 PM
|
#6 |
|
Senior Member
Join Date: May 2011
Location: Greencastle PA
Posts: 6,807
|
Re: ISO Blazer Jimmy spare tire carrier carriage bolt
Lol, you can borrow the bolt.
|
|
|
|
|
09-17-2022, 05:28 PM
|
#7 |
|
Senior Member
Join Date: May 2011
Location: Greencastle PA
Posts: 6,807
|
Re: ISO Blazer Jimmy spare tire carrier carriage bolt
|
|
|
|
|
09-17-2022, 07:23 PM
|
#8 |
|
Senior Member
Join Date: Aug 2015
Location: Belleville, IL (St. Louis metro)
Posts: 725
|
Re: ISO Blazer Jimmy spare tire carrier carriage bolt
GM’s 69-72 bolt was essentially standard head and square dimensions for a 7/16 carriage bolt. It did fit terribly loose in the slot as 1rippen6 says. The 1/2” carriage bolt dimensions fit great, but a 1/2” carriage bolt would require using an incorrect nut. A custom bolt with a 1/2” head but 7/16-20 fine thread would be the best of both worlds. When I had my reproductions forged, I followed the 7/16” carriage bolt standards (like GM) in part to be able to use existing forge tooling. The cost to create new forging dies would have been prohibitively expensive.
__________________
71 K5 CST Blazer 350 70 Suburban 350 71 Chevelle SS 454 69 Olds 442 454 (yes, Chevy power!) 68 Camaro RS 327 66 Chevelle SS 396 Members I have met: 62cdan, 60case, daddymoo2, aotte1, 70shortfleet, countr, Cowboy#40, chevy71super, davischevy |
|
|
|
|
09-18-2022, 12:40 AM
|
#9 |
|
Senior Member
Join Date: Jan 2009
Location: Tugaske SK Canada
Posts: 315
|
Re: ISO Blazer Jimmy spare tire carrier carriage bolt
I tried to find a bolt manufacturer in Canada to make the 7/16 fine thread carriage bolts but no luck. I found a supplier of 7/16 x 7" course thread carriage bolts and had a machine shop replicate the 03682846 nuts but with course threads to have a affordable bolt/nut setup. The nuts are like a lug nut with an extension on it (wish I could post pics). Apparently I was misinformed about all the applications.
|
|
|
|
|
09-18-2022, 01:59 PM
|
#10 |
|
Senior Member
Join Date: Aug 2015
Location: Belleville, IL (St. Louis metro)
Posts: 725
|
Re: ISO Blazer Jimmy spare tire carrier carriage bolt
The extension nut 3682846 was correct for the optional inside bed mount like what was on pickups (p/n circled in red, and pic of carrier below).
An ordinary 358501 lug nut was used on the standard Blazer behind-the-seat spare tire brackets. (p/n circled in blue).
__________________
71 K5 CST Blazer 350 70 Suburban 350 71 Chevelle SS 454 69 Olds 442 454 (yes, Chevy power!) 68 Camaro RS 327 66 Chevelle SS 396 Members I have met: 62cdan, 60case, daddymoo2, aotte1, 70shortfleet, countr, Cowboy#40, chevy71super, davischevy |
|
|
|
|
11-02-2022, 10:53 AM
|
#11 |
|
Registered User
Join Date: Jan 2016
Location: NJ
Posts: 407
|
Re: ISO Blazer Jimmy spare tire carrier carriage bolt
Bolt 3991023 is almost too small for the in bed spare tire mount. It barely catches the edges of the bolt slot in the mount.
I found that bolt 326928 fits the bolt slot in the mount perfectly but it is an inch longer. If bolt 326928 is too long to securely fasten the 3682846 lug nut on my tire I may just get a large coarse thread carriage bolt and turn it down / cut threads in it to fit my truck. I really hate to cut up a NOS bolt. Feel free to PM me if you want any measurements |
|
|
|
|
| Bookmarks |
|
|
Hybrid Mode
