D-17 seat shock absorber

I'm thinking someone out there has figured out what p/n shock from an auto parts store can be used to replace the OEM seat suspension shock on a D-17 tractor. I don't want a new spring and such, just the shock absorber. Thanks for any help.

I can't say for a D17, although the front shock for a 49-50 Dodge or Plymouth is an exact fit for a CA.

Edited by PaulB - 09 Apr 2021 at 10:31am

If it was fun to pull in LOW gear, I could have a John Deere.
Real pullers don't have speed limits.
If you can't make it GO... make it SHINY

My spring seems to be completely worn out unless I can tighten it somehow because on even small little bumps it bottoms out on my d17 so I'd be interested in this too, among other things that need looked at on her...

I purchased a new shock unit early this year for my 17, makes for a much better ride.

Charlie

'48 B, '51 CA, '56 WD45 '61 D17, '63 D12, '65 D10 , '68 One-Ninety XTD

I'm pretty sure if you'd invest the $100+ dollars into a new spring/shock assembly, you'd not bottom out near as easily as long as it is adjusted fully FORWARD in the adjustment slot. Coil springs get shorter with age. This also assumes your seat suspension linkage bushings/pins/pivot points are all in good condition.

The top of mind seems to be missing a bushing where the 5/8 bolt goes through the top hole of the spring it's probably about 1 in in diameter instead of being tight with some kind of bushing I'm guessing...

I thought I'd report on the Monroe 5752 shock absorber for a D-17 seat shock. I think I'm going to be happy with it and am going on a tractor ride in a couple of weeks. Price was right at 30 bucks. The overall length is actually a wee bit longer than the OEM shock. This extra length allows the seat suspension to travel noticeably higher when unloaded. This then causes the seat to not sit squarely on the suspension when in the raised up position. I slipped a 1/4" thick plate under the bottom connection point of the shock to act as a stop to cure this minor issue. My new after-market seat cushions are thicker than OEM which also compounded the height problem. For the weight bearing coil spring, the bottom spring cup works just fine. What I used at the top was a schedule 40 piece of pipe that just slipped snugly over the shock that was 4 inches long. It compressed my old spring an inch over the OEM shock, which is what I wanted. At 195 lbs I have the weight setting about two inches from the rear of the adjustment slot, or in other words almost as weak as it can be. My goal was to have the old spring (which is shorter from 60 years of use) compressed tighter to begin with, so as the suspension reaches the bottom of its possible travel, the spring rate increases dramatically to keep from (hopefully) hitting bottom nearly as often. If I do another one (and I may on my next project) I may take a risk and cut off the shocks rod 1/4" or so to try and hit the exact extended length as OEM to control the total max unloaded height.

	This site is not affiliated with AGCO Inc., Duluth GA., Allis-Chalmers Co., Milwaukee, WI., or any surviving or related corporate entity. All trademarks remain the property of their respective owners. All information presented herein should be considered the result of an un-moderated public forum with no responsibility for its accuracy or usability assumed by the users and sponsors of this site or any corporate entity.
	The Forum	Parts and Services	Unofficial Allis Store	Tractor Shows	Serial Numbers	History

Author	Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic
DrAllis Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Points: 21732	Post Options Post Reply Quote DrAllis Report Post Thanks(0) Quote Reply Topic: D-17 seat shock absorber Posted: 08 Apr 2021 at 7:52pm
	I'm thinking someone out there has figured out what p/n shock from an auto parts store can be used to replace the OEM seat suspension shock on a D-17 tractor. I don't want a new spring and such, just the shock absorber. Thanks for any help.

Sponsored Links

Charlie175 Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 11 Sep 2009 Location: Shenandoah, VA Points: 6368	Post Options Post Reply Quote Charlie175 Report Post Thanks(0) Quote Reply Posted: 09 Apr 2021 at 6:26am
	I had it noted somewhere but a motorcycle shock was a direct fit. I just need to find that.
	Charlie '48 B, '51 CA, '56 WD45 '61 D17, '63 D12, '65 D10 , '68 One-Ninety XTD

PaulB Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 12 Sep 2009 Location: Rocky Ridge Md Points: 5047	Post Options Post Reply Quote PaulB Report Post Thanks(0) Quote Reply Posted: 09 Apr 2021 at 6:37am
	I can't say for a D17, although the front shock for a 49-50 Dodge or Plymouth is an exact fit for a CA. Edited by PaulB - 09 Apr 2021 at 10:31am
	If it was fun to pull in LOW gear, I could have a John Deere. Real pullers don't have speed limits. If you can't make it GO... make it SHINY

DrAllis Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Points: 21732	Post Options Post Reply Quote DrAllis Report Post Thanks(0) Quote Reply Posted: 09 Apr 2021 at 7:02am
	I think the CA is the same as a late WD and WD45's and not quite the same as D-14-15-17-19.

Hunt4Allis Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 13 Mar 2018 Location: Ohio Points: 1172	Post Options Post Reply Quote Hunt4Allis Report Post Thanks(0) Quote Reply Posted: 09 Apr 2021 at 10:48am
	My spring seems to be completely worn out unless I can tighten it somehow because on even small little bumps it bottoms out on my d17 so I'd be interested in this too, among other things that need looked at on her...

DrAllis Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Points: 21732	Post Options Post Reply Quote DrAllis Report Post Thanks(0) Quote Reply Posted: 09 Apr 2021 at 11:14am
	If you have the spring/shock adjusted to full FORWARD in the slot behind the seat, and it bottoms out a lot, you have a spring that is old and getting short or you are too heavy. The shock does nothing to carry the load. The spring does that.

Charlie175 Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 11 Sep 2009 Location: Shenandoah, VA Points: 6368	Post Options Post Reply Quote Charlie175 Report Post Thanks(0) Quote Reply Posted: 09 Apr 2021 at 11:49am
	I purchased a new shock unit early this year for my 17, makes for a much better ride.
	Charlie '48 B, '51 CA, '56 WD45 '61 D17, '63 D12, '65 D10 , '68 One-Ninety XTD

Hunt4Allis Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 13 Mar 2018 Location: Ohio Points: 1172	Post Options Post Reply Quote Hunt4Allis Report Post Thanks(0) Quote Reply Posted: 09 Apr 2021 at 3:31pm
	I dought I'm too heavy(225) probably original spring... Wondered if like a four wheeler suspension that can be more compressed for a firmer ride( less bottoming out)

DrAllis Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Points: 21732	Post Options Post Reply Quote DrAllis Report Post Thanks(0) Quote Reply Posted: 09 Apr 2021 at 7:37pm
	I'm pretty sure if you'd invest the $100+ dollars into a new spring/shock assembly, you'd not bottom out near as easily as long as it is adjusted fully FORWARD in the adjustment slot. Coil springs get shorter with age. This also assumes your seat suspension linkage bushings/pins/pivot points are all in good condition.

John D Members Profile Send Private Message Find Members Posts Add to Buddy List Silver Level Joined: 12 Sep 2009 Location: Sherman, IL Points: 360	Post Options Post Reply Quote John D Report Post Thanks(0) Quote Reply Posted: 11 Apr 2021 at 8:25am
	I have used a Monroe 5752 on a couple of D17's I've had. I only needed to modify the collar that holds the spring to allow it go onto the shock housing. My notes have this shock as 8 5/8" compressed and 12 3/4" extended with 5/8" bolt hole. I picked them up from O'Reillys.
	1964 D17 series 3

Hunt4Allis Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 13 Mar 2018 Location: Ohio Points: 1172	Post Options Post Reply Quote Hunt4Allis Report Post Thanks(0) Quote Reply Posted: 11 Apr 2021 at 5:19pm
	The top of mind seems to be missing a bushing where the 5/8 bolt goes through the top hole of the spring it's probably about 1 in in diameter instead of being tight with some kind of bushing I'm guessing...

DrAllis Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Points: 21732	Post Options Post Reply Quote DrAllis Report Post Thanks(0) Quote Reply Posted: 11 Apr 2021 at 6:10pm
	Yeah, that would make a difference on you bottoming out. Get the new rubber bushings in there and the bottom ones are probably shot as well.

DrAllis Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Points: 21732	Post Options Post Reply Quote DrAllis Report Post Thanks(1) Quote Reply Posted: 21 May 2021 at 8:00pm
	I thought I'd report on the Monroe 5752 shock absorber for a D-17 seat shock. I think I'm going to be happy with it and am going on a tractor ride in a couple of weeks. Price was right at 30 bucks. The overall length is actually a wee bit longer than the OEM shock. This extra length allows the seat suspension to travel noticeably higher when unloaded. This then causes the seat to not sit squarely on the suspension when in the raised up position. I slipped a 1/4" thick plate under the bottom connection point of the shock to act as a stop to cure this minor issue. My new after-market seat cushions are thicker than OEM which also compounded the height problem. For the weight bearing coil spring, the bottom spring cup works just fine. What I used at the top was a schedule 40 piece of pipe that just slipped snugly over the shock that was 4 inches long. It compressed my old spring an inch over the OEM shock, which is what I wanted. At 195 lbs I have the weight setting about two inches from the rear of the adjustment slot, or in other words almost as weak as it can be. My goal was to have the old spring (which is shorter from 60 years of use) compressed tighter to begin with, so as the suspension reaches the bottom of its possible travel, the spring rate increases dramatically to keep from (hopefully) hitting bottom nearly as often. If I do another one (and I may on my next project) I may take a risk and cut off the shocks rod 1/4" or so to try and hit the exact extended length as OEM to control the total max unloaded height.