![]() |
Register or Log In To remove these advertisements. |
|
|
![]() |
|
Thread Tools | Display Modes |
![]() |
#76 |
Registered User
Join Date: Mar 2008
Location: Eagle Ne
Posts: 356
|
Re: Installing The NV4500 5 Speed Overdrive Transmission In The C-30
Awesome read, I plan on doing this swap in a similar fashion.
My question is is there enough to room between the case side and the hole location to possibly use a 12pt or socket head caps crew on the top holes threading into the bell? Pics of that area would be awesome
__________________
60 4x4,235,SM420,Rockwell T221,D44/HO33 sold 4/12 67 C-20,292,SM420,HO72 90 Dodge W250 Cummins,NV4500HD,205,D60/D80 93 Dodge W350 Dually Cummins, Getrag, 205,D60/D70 |
![]() |
![]() |
![]() |
#77 | |
The Older Generation
![]() ![]() ![]() Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,483
|
Re: Installing The NV4500 5 Speed Overdrive Transmission In The C-30
Quote:
It has been long enough that I can't remember for sure, but I don't think so, or I would probably have done it that way. I will have to double check on that tomorrow. LockDoc
__________________
Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
|
![]() |
![]() |
![]() |
#78 |
Registered User
Join Date: Dec 2016
Location: Strongstown
Posts: 57
|
![]()
Would this conversion be right for a 72 C10 that has a factory 3 speed with a low center hump? Thanks
|
![]() |
![]() |
![]() |
#79 | |
The Older Generation
![]() ![]() ![]() Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,483
|
Re: Installing The NV4500 5 Speed Overdrive Transmission In The C-30
Quote:
I'm not sure what the bearing retainer hole size is in the bell housing for the three speed. (of all the '67-'72 trucks I have owned I have never had one with a three speed) If it is the 5-1/8th inch hole it will work just like mine did. The low center hump will not work. You would have to trim out the low and bolt in a high hump. Not really a big deal. LockDoc
__________________
Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
|
![]() |
![]() |
![]() |
#80 |
Registered User
Join Date: Dec 2016
Location: Strongstown
Posts: 57
|
![]()
Thanks for the reply, 3 speed works fine but column shifter is not dependable and gearing is a little low for the highway. Love the down to earth info you offer . Thanks again
|
![]() |
![]() |
![]() |
#81 |
Registered User
Join Date: Mar 2008
Location: Eagle Ne
Posts: 356
|
Re: Installing The NV4500 5 Speed Overdrive Transmission In The C-30
Well, just scored the correct bell for this conversion/work. By the way did you get time to go snap any pics of the back side of the ear?
__________________
60 4x4,235,SM420,Rockwell T221,D44/HO33 sold 4/12 67 C-20,292,SM420,HO72 90 Dodge W250 Cummins,NV4500HD,205,D60/D80 93 Dodge W350 Dually Cummins, Getrag, 205,D60/D70 |
![]() |
![]() |
![]() |
#82 | |
Registered User
Join Date: Jul 2014
Location: South East Ohio
Posts: 644
|
Re: Installing The NV4500 5 Speed Overdrive Transmission In The C-30
Quote:
If you are referring to running a bolt in from the case side of the transmission (the upper bolts) then I'm pretty sure there isn't enough clearance for the bolt head. In this picture, you'll see that I didn't drill all the way through on the final size because the side of the drill bit would have cut into the side of the trans case. I knew this because I drilled through with the smaller pilot bit and left the bit through the hole, then measured the clearance to the case. Notice in the picture, only the small center hole goes all the way through... |
|
![]() |
![]() |
![]() |
#83 | |
The Older Generation
![]() ![]() ![]() Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,483
|
Re: Installing The NV4500 5 Speed Overdrive Transmission In The C-30
Quote:
I didn't take any pictures but there is not enough clearance on the trans case to put a bolt through. LockDoc
__________________
Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
|
![]() |
![]() |
![]() |
#84 |
Registered User
![]() Join Date: Oct 2013
Location: lousiville Ky
Posts: 2,649
|
Re: Installing The NV4500 5 Speed Overdrive Transmission In The C-30
Going to do this NV4500 install using stock bell housing, as outlined in this thread. This is a very helpful discussion. Below are starting photos. This application is 1966 GMC Suburban 4WD, divorced 221 TC. Bell housing is newer version. First photo is from thread. Circled holes are of interest as to how deep they can be. General rule on thread strength is, if they can be threaded as deep as diameter, then they will hold. In this case 1/2 bolt, with 1/2 thread depth will hold bolt strength. Also, will likely face top two holes in bell housing.
Again, thanks to Leon for sharing this information. Last edited by aotte1; 01-07-2021 at 08:31 PM. |
![]() |
![]() |
![]() |
#85 | |
The Older Generation
![]() ![]() ![]() Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,483
|
Re: Installing The NV4500 5 Speed Overdrive Transmission In The C-30
Quote:
No problem on posting the thread. I'm not 100% sure but I think I drilled those top holes deep enough that they were all the way through the mounting ears of the transmission and starting to break through the back side. I didn't want to drill them deep enough that the drill would start pulling to the side and egg the hole out. The threads were pretty much the full thickness of the transmission ear. LockDoc
__________________
Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
|
![]() |
![]() |
![]() |
#86 |
F’B’D guy
![]() Join Date: Feb 2004
Location: Texas/Maine
Posts: 2,220
|
Re: Installing The NV4500 5 Speed Overdrive Transmission In The C-30
Just curious, would a gear vendors do the same thing but with less work? It would cost more I think but for the less skilled knuckle busters it might be an option? I was thinking about it for a 1970 K10 with a SM465 and my 1984 K30/SM465.
BTW, I have a 2003 Ram 2500/5.9 with the NV5600 and love it. |
![]() |
![]() |
![]() |
#87 | |
The Older Generation
![]() ![]() ![]() Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,483
|
Re: Installing The NV4500 5 Speed Overdrive Transmission In The C-30
Quote:
I am not at all familiar with the Gear Vendors overdrive. There is a ton of threads on that subject on the board so I would rather not get into that discussion in this thread, and keep it focused on the NV4500, thanks. https://www.google.com/search?domain...D%3A1%3B&hl=en LockDoc
__________________
Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
|
![]() |
![]() |
![]() |
#88 |
F’B’D guy
![]() Join Date: Feb 2004
Location: Texas/Maine
Posts: 2,220
|
Re: Installing The NV4500 5 Speed Overdrive Transmission In The C-30
Sorry, didn’t mean to hyjack your thread.
|
![]() |
![]() |
![]() |
#89 | |
Registered User
Join Date: Jul 2014
Location: South East Ohio
Posts: 644
|
Re: Installing The NV4500 5 Speed Overdrive Transmission In The C-30
Quote:
|
|
![]() |
![]() |
![]() |
#90 |
Proprietor of Dale's Corner
![]() Join Date: Nov 2012
Location: Vacaville , CA
Posts: 16,096
|
Re: Installing The NV4500 5 Speed Overdrive Transmission In The C-30
One of the awesome features of this site. Leon's experience is helping you with your installation.
![]() ![]()
__________________
"Some Days Chickens And Some Days Feathers" Dale XNGH ECV Sam Brannan 1004 R.I.P. 67ChevyRedneck R.I.P. Grumpy Old Man |
![]() |
![]() |
![]() |
#91 |
Registered User
Join Date: Jul 2014
Location: South East Ohio
Posts: 644
|
Re: Installing The NV4500 5 Speed Overdrive Transmission In The C-30
|
![]() |
![]() |
![]() |
#92 | |
Proprietor of Dale's Corner
![]() Join Date: Nov 2012
Location: Vacaville , CA
Posts: 16,096
|
Re: Installing The NV4500 5 Speed Overdrive Transmission In The C-30
Quote:
![]()
__________________
"Some Days Chickens And Some Days Feathers" Dale XNGH ECV Sam Brannan 1004 R.I.P. 67ChevyRedneck R.I.P. Grumpy Old Man |
|
![]() |
![]() |
![]() |
#93 |
Registered User
![]() Join Date: Oct 2013
Location: lousiville Ky
Posts: 2,649
|
Re: Installing The NV4500 5 Speed Overdrive Transmission In The C-30
Just got mine done, using this method. Thanks Leon.
|
![]() |
![]() |
![]() |
#94 |
The Older Generation
![]() ![]() ![]() Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,483
|
Re: Installing The NV4500 5 Speed Overdrive Transmission In The C-30
-
I'm glad the thread is still helping people with their projects. Thanks guys. LockDoc
__________________
Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
![]() |
![]() |
![]() |
#95 |
Registered User
![]() Join Date: Oct 2013
Location: lousiville Ky
Posts: 2,649
|
Re: Installing The NV4500 5 Speed Overdrive Transmission In The C-30
Getting ready to do another one.
Les |
![]() |
![]() |
![]() |
#96 |
The Older Generation
![]() ![]() ![]() Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,483
|
Re: Installing The NV4500 5 Speed Overdrive Transmission In The C-30
Good deal Les! My transmission is still working flawlesly and I use the truck a lot. I need to change the throw out bearing because it is making noise, but other than that, no problems.
Hard to believe it has been 7 years since I did mine.... LockDoc
__________________
Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - Last edited by LockDoc; 08-04-2022 at 09:05 AM. |
![]() |
![]() |
![]() |
#97 |
Senior Member
![]() Join Date: Feb 2001
Location: New Madison, Ohio
Posts: 21,365
|
Re: Installing The NV4500 5 Speed Overdrive Transmission In The C-30
Looking good!!
__________________
A husband can be right...or...A husband can be happy. ![]() 67-72 Chevy and GMC Trucks...The Classic Truck for the Classic Folk. ![]() 1970 CST Two tone green, 402BB, 400 Automatic, Tach, Buckets, AC, AM-FM, Tilt, GM CB, GM 8 Tract, LWB, etc ![]() ![]() JOHN 17:3...The better side of "LIFE" Remember: Everyday is a good day...Some are just gooder! |
![]() |
![]() |
![]() |
#98 |
Registered User
Join Date: Sep 2013
Location: Quakertown, Pa.
Posts: 113
|
Re: Installing The NV4500 5 Speed Overdrive Transmission In The C-30
Great write-up. I've been looking for info about this swap not knowing it was here on this site.
Gonna be doing this to my '67 c20 with a 327. It will replace the old SM 420 that is currently in it.
__________________
John 1967 C20 2WD Longbed 2001 2500 HD 4X4 Extended cab long bed ![]() |
![]() |
![]() |
![]() |
#99 | |
The Older Generation
![]() ![]() ![]() Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,483
|
Re: Installing The NV4500 5 Speed Overdrive Transmission In The C-30
Quote:
Good deal! You should be able to use all of your stock parts except maybe your bell housing. Your bell housing would be the same as the one I used except that the front bearing retainer hole is the small (4-11/16") diameter instead of the 5-1/8" needed for the NV4500 transmission. You can either have yours bored out to 5-1/8" or find a bell housing from a truck with the SM465 manual transmission. (1968 up) Let us know how it goes.... Or post a link here if you start a thread on your swap. LockDoc .
__________________
Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - Last edited by LockDoc; 08-12-2022 at 09:35 AM. |
|
![]() |
![]() |
![]() |
#100 | |
Registered User
Join Date: Sep 2013
Location: Quakertown, Pa.
Posts: 113
|
Re: Installing The NV4500 5 Speed Overdrive Transmission In The C-30
Quote:
Will do and thanks for all the info. Looks like it helped alot of guys out.
__________________
John 1967 C20 2WD Longbed 2001 2500 HD 4X4 Extended cab long bed ![]() |
|
![]() |
![]() |
![]() |
Bookmarks |
|
|