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post #1 of 17 Old 08-07-2019, 07:27 PM Thread Starter
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Question about 50 inch deck

So I have a rather derelict Gravely 450 in my possession, and I was thinking about buying a 8123, but he wants too much for it with the deck. They both have a 50 inch deck. Would I be able to take the deck off of the 450 and install it on the 8123 with little to no modifications?

Dom
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post #2 of 17 Old 08-07-2019, 09:26 PM
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Re: Question about 50 inch deck

Quote:
Originally Posted by JD316Fan View Post
So I have a rather derelict Gravely 450 in my possession, and I was thinking about buying a 8123, but he wants too much for it with the deck. They both have a 50 inch deck. Would I be able to take the deck off of the 450 and install it on the 8123 with little to no modifications?
Well yes but you need the drive shaft for 800 or 8000 short frame tractors

Steven Turcheck
6? gravely's I think and counting
current tractors and rigs
1944 WWII L
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52 US navy L, 2 53 Ls
2 56 LI, 57 LI, 58 LI, 59 L & LS, 62 LI, 2 63 L8's & 2 LI's, 64 L8 & L, 65 LI, 66 L8, 66 C10, 2 67 C10As, 68 430, 69 C8, 70 C & CI & 2 C8's, 70com8, 71 430 nb, 432 & 450, 70, 73, 74 & 76 408, 74 812 75 CI & 524, 77 526 & 817, 78 818T& 5200, 82, 83 8163-B, 88 16G
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Old 08-07-2019, 09:27 PM
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post #3 of 17 Old 08-07-2019, 10:27 PM Thread Starter
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Quote:
Originally Posted by gravely1964 View Post
Quote:
Originally Posted by JD316Fan View Post
So I have a rather derelict Gravely 450 in my possession, and I was thinking about buying a 8123, but he wants too much for it with the deck. They both have a 50 inch deck. Would I be able to take the deck off of the 450 and install it on the 8123 with little to no modifications?
Well yes but you need the drive shaft for 800 or 8000 short frame tractors

Is this all I would need to to? Would you happen to have a part number this item(s)? I know I may seem dumb but I'm just getting into Gravelys and I dont know much about them.

Dom
'84 John Deere 316
'70 Gravely 450

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post #4 of 17 Old 08-08-2019, 09:04 AM
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Re: Question about 50 inch deck

The 8123 and 450 are both short-frame tractors, so the driveshaft length is not a concern. What you do have to be careful of is the number of splines, early attachments had 13-spline drives. It's not insurmountable as you could potentially use the rear half of a 15-spline prop shaft with the front half of a 13-spline. If you encounter that. I don't know for sure that all the early rider attachments were 13-spline.

EDIT: Realized my goof. 8123 is long frame. Carry on!

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Last edited by yamato72; 08-08-2019 at 09:25 AM.
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post #5 of 17 Old 08-08-2019, 05:42 PM Thread Starter
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Quote:
Originally Posted by yamato72 View Post
The 8123 and 450 are both short-frame tractors, so the driveshaft length is not a concern. What you do have to be careful of is the number of splines, early attachments had 13-spline drives. It's not insurmountable as you could potentially use the rear half of a 15-spline prop shaft with the front half of a 13-spline. If you encounter that. I don't know for sure that all the early rider attachments were 13-spline.

EDIT: Realized my goof. 8123 is long frame. Carry on!
I thought they were both short frames? I can see that the gas cap to the front of the hood is the same distance away. I thought that's how your were able to tell. If I have to buy one half of the driveshaft with 15 splines that doesnt bother me.

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post #6 of 17 Old 08-08-2019, 10:53 PM
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Re: Question about 50 inch deck

Well if you say so. But 400 shaft lower and 800 shaft upper. There different lengths since they have 2 totally different transmissions. Even though wheel bases are pretty close
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ID:	2390187 400, 16G and 818-T. Long frame is 6 inches longer basically

Steven Turcheck
6? gravely's I think and counting
current tractors and rigs
1944 WWII L
48 L grw's
2 49 L's ,1 Wisconsin powered L
52 US navy L, 2 53 Ls
2 56 LI, 57 LI, 58 LI, 59 L & LS, 62 LI, 2 63 L8's & 2 LI's, 64 L8 & L, 65 LI, 66 L8, 66 C10, 2 67 C10As, 68 430, 69 C8, 70 C & CI & 2 C8's, 70com8, 71 430 nb, 432 & 450, 70, 73, 74 & 76 408, 74 812 75 CI & 524, 77 526 & 817, 78 818T& 5200, 82, 83 8163-B, 88 16G
1950's Bready
74 cub 129& case 220
48 Willy's CJ 2A
1991 ford F150 and Bronco
2007 F250 Big White
2010 Sc2450 yanmar

Last edited by gravely1964; 08-08-2019 at 11:00 PM.
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post #7 of 17 Old 08-08-2019, 10:59 PM Thread Starter
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Ok I understand. The 400s have the Swiftamatic transmission with the Hi/Lo and 2 speed PTO. I'd need the 15 spline male end of the driveshaft of the longer length. Thanks for the help.

Dom
'84 John Deere 316
'70 Gravely 450

Last edited by JD316Fan; 08-08-2019 at 11:04 PM.
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post #8 of 17 Old 08-11-2019, 09:05 PM
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Quote:
Originally Posted by JD316Fan View Post
I thought they were both short frames?
I’m rusty on the designations, sorry. 8000s ending in a “2” are short frame, manual lift. Ending in a “3” is a short frame, hydraulic lift. Long frame tractors end in a “9.” I honestly don’t remember if there is a designation for a long frame, manual lift 8000.

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post #9 of 17 Old 08-12-2019, 01:20 PM Thread Starter
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Quote:
Originally Posted by yamato72 View Post

I’m rusty on the designations, sorry. 8000s ending in a “2” are short frame, manual lift. Ending in a “3” is a short frame, hydraulic lift. Long frame tractors end in a “9.” I honestly don’t remember if there is a designation for a long frame, manual lift 8000.
It's alright. We all make our mistakes. I'm just new to Gravelys and I am trying to learn the basics. I also came across an interesting Gravely for sale and it gas an interesting set of decals and I am wondering if anybody would know what model it is. The model number on the hood has disappeared over time.
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Old 08-12-2019, 03:48 PM
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post #10 of 17 Old 08-12-2019, 06:07 PM
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Re: Question about 50 inch deck

Heres the pdf list of gravely
models riders and walk behinds, they'll tell you long short frame, motors, lifts ect http://rich.homeunix.com/gravely/Cus...88_89_1188.pdf

Scroll down to rider section

Steven Turcheck
6? gravely's I think and counting
current tractors and rigs
1944 WWII L
48 L grw's
2 49 L's ,1 Wisconsin powered L
52 US navy L, 2 53 Ls
2 56 LI, 57 LI, 58 LI, 59 L & LS, 62 LI, 2 63 L8's & 2 LI's, 64 L8 & L, 65 LI, 66 L8, 66 C10, 2 67 C10As, 68 430, 69 C8, 70 C & CI & 2 C8's, 70com8, 71 430 nb, 432 & 450, 70, 73, 74 & 76 408, 74 812 75 CI & 524, 77 526 & 817, 78 818T& 5200, 82, 83 8163-B, 88 16G
1950's Bready
74 cub 129& case 220
48 Willy's CJ 2A
1991 ford F150 and Bronco
2007 F250 Big White
2010 Sc2450 yanmar
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post #11 of 17 Old 08-12-2019, 10:39 PM
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Re: Question about 50 inch deck

None of the decals are standard.

The tractor is most likely an 8000 series. Just a pure guess, but maybe an 8123

8 = 8000 series

12 = 12HP

3 = hydraulic lift

the 12 could be 14 or 16 just as easily, but the 12 is the most common in that series.

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post #12 of 17 Old 08-12-2019, 11:59 PM Thread Starter
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Like I said I'm buying an 8123. It ran last year, but he can't get it started this year. It's in pretty good shape. Is $475 a good deal? It got him down on the price, and that is included with a 50" deck. It was either 350 without deck and I buy a driveshaft, or it was 475 with the deck, and I think with deck is a better option. That way when I sell the 450 I make more because it has a deck.

Dom
'84 John Deere 316
'70 Gravely 450

Last edited by JD316Fan; 08-13-2019 at 12:07 AM.
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post #13 of 17 Old 08-13-2019, 11:42 AM
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Re: Question about 50 inch deck

Quote:
Originally Posted by JD316Fan View Post
Like I said I'm buying an 8123. It ran last year, but he can't get it started this year. It's in pretty good shape. Is $475 a good deal? It got him down on the price, and that is included with a 50" deck. It was either 350 without deck and I buy a driveshaft, or it was 475 with the deck, and I think with deck is a better option. That way when I sell the 450 I make more because it has a deck.
Can't argue with the logic. Go for it.

Gravely 18-G * 50" MMM * 48" Snow Blade / Gravely 816 Project * 30" Tiller * 48" Blower / Custom Trailer
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post #14 of 17 Old 08-16-2019, 09:47 PM Thread Starter
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Re: Question about 50 inch deck

EDIT: I got the 450 running yesterday. Looks like I will be able to sell it for more than I expected.

Dom
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'70 Gravely 450
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post #15 of 17 Old 08-20-2019, 03:23 PM
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Re: Question about 50 inch deck

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Originally Posted by JD316Fan View Post
Like I said I'm buying an 8123. It ran last year, but he can't get it started this year. It's in pretty good shape. Is $475 a good deal? It got him down on the price, and that is included with a 50" deck. It was either 350 without deck and I buy a driveshaft, or it was 475 with the deck, and I think with deck is a better option. That way when I sell the 450 I make more because it has a deck.
For a non-runner in the mid-atlantic area I'd say that's a bit to high. I have a hard time going over $250 on a non-runner, depending on condition. Who knows what it will take to get it going again. If it was at least running and just needed some maintenance items, than $475 is a decent deal.

The other tractor you showed has been for sale for the last 8+ months. It's a repaint of some sorts, thought I haven't had a good look at the tractor in a while to determine the exact model.

Rick

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