Clark 5 speed transmissions
Thread Starter
|
Logistics Pro
Joined: Feb 2005
Posts: 3,952
Likes: 117
From: Upper Left Coast
Clark 5 speed transmissions
Howdy all,
I suppose this is a question for the Numberdummy but I'd love to hear from everyone!
Does anyone know if any bell housing (for a Y-block) will fit a Clark 251VO 5 speed or does it have to be a specific bell housing?
Thanks,
Rick
I suppose this is a question for the Numberdummy but I'd love to hear from everyone!
Does anyone know if any bell housing (for a Y-block) will fit a Clark 251VO 5 speed or does it have to be a specific bell housing?
Thanks,
Rick
Logistics Pro
Joined: Dec 2005
Posts: 4,644
Likes: 55
From: Moro Bay, AR
I'm not familiar with that particular Clark trans, but I know that the 282/285 series will bolt up to a Y-block bell housing. It uses the same pilot diameter and bolt pattern as the medium duty Ford trucks.
Posting Guru
Joined: Jun 2001
Posts: 1,236
Likes: 2
From: Vancouver Island
I looked through a 1960 Ford truck parts catalog and it shows the 251VO sharing the same bellhousing as a 4 speed for the V8s.
Ratios (from some webpage):
250V (M) 7.08/4.08/2.37/1.47/1.00/7.02R Clark '56-67
251VO (M) 6.06/3.50/1.80/1.00/0.80/6.00R Clark '56-67
It looks like there is a newer Clark transmission that replaces the 251VO: the 280VO-201 and 280VOHD-203
Check the interchange guide APMT-0069 at Roadranger.com:
Page 107 explains the differences between the 251VO and the 280VO
Ratios (from some webpage):
250V (M) 7.08/4.08/2.37/1.47/1.00/7.02R Clark '56-67
251VO (M) 6.06/3.50/1.80/1.00/0.80/6.00R Clark '56-67
It looks like there is a newer Clark transmission that replaces the 251VO: the 280VO-201 and 280VOHD-203
Check the interchange guide APMT-0069 at Roadranger.com:
Page 107 explains the differences between the 251VO and the 280VO
Thread Starter
|
Logistics Pro
Joined: Feb 2005
Posts: 3,952
Likes: 117
From: Upper Left Coast
Howdy angus!
Thanks for the info!
I have been looking at a lot of info on this stuff.
I did not find much on specifications for the280VO-xx transmissions though.
I'm assuming that it's a much newer model. I did talk to a person at the Transmission Exchange in Portland and they said they could build me a reman 280 for about $1200 or so. I think he told me that it was used up into the early 80's. So it's an available transmission.
I just need to ensure that my Y bell housing will bolt to it, my pressure plate will slide onto the input shaft, and the shaft is the right length etc.
Since it's a newer transmission I'm also assuming that it's syncro'ed in either all forward gears or at least 2nd-5th.
I think this'll be a good alternative to my original desire of putting an automatic in the truck. As much as I want to use an E4OD with all the trimmings and I know I can do it, I just think the returns will not justify the outlay in $$ and time to get it to work!
Do you have any other info on the 280 series Clark transmissions?
Thanks,
Rick
Thanks for the info!
I have been looking at a lot of info on this stuff.
I did not find much on specifications for the280VO-xx transmissions though.
I'm assuming that it's a much newer model. I did talk to a person at the Transmission Exchange in Portland and they said they could build me a reman 280 for about $1200 or so. I think he told me that it was used up into the early 80's. So it's an available transmission.
I just need to ensure that my Y bell housing will bolt to it, my pressure plate will slide onto the input shaft, and the shaft is the right length etc.
Since it's a newer transmission I'm also assuming that it's syncro'ed in either all forward gears or at least 2nd-5th.
I think this'll be a good alternative to my original desire of putting an automatic in the truck. As much as I want to use an E4OD with all the trimmings and I know I can do it, I just think the returns will not justify the outlay in $$ and time to get it to work!
Do you have any other info on the 280 series Clark transmissions?
Thanks,
Rick
Originally Posted by angus
I looked through a 1960 Ford truck parts catalog and it shows the 251VO sharing the same bellhousing as a 4 speed for the V8s.
Ratios (from some webpage):
250V (M) 7.08/4.08/2.37/1.47/1.00/7.02R Clark '56-67
251VO (M) 6.06/3.50/1.80/1.00/0.80/6.00R Clark '56-67
It looks like there is a newer Clark transmission that replaces the 251VO: the 280VO-201 and 280VOHD-203
Check the interchange guide APMT-0069 at Roadranger.com:
Page 107 explains the differences between the 251VO and the 280VO
Ratios (from some webpage):
250V (M) 7.08/4.08/2.37/1.47/1.00/7.02R Clark '56-67
251VO (M) 6.06/3.50/1.80/1.00/0.80/6.00R Clark '56-67
It looks like there is a newer Clark transmission that replaces the 251VO: the 280VO-201 and 280VOHD-203
Check the interchange guide APMT-0069 at Roadranger.com:
Page 107 explains the differences between the 251VO and the 280VO
Posting Guru
Joined: Jun 2001
Posts: 1,236
Likes: 2
From: Vancouver Island
> Do you have any other info on the 280 series Clark transmissions?
No, just what I read in that Roadranger.com document. If you have an original 4-speed, maybe you could compare the input shaft and bolt pattern with a 280V0 at the Transmission Exchange and see if they match.
No, just what I read in that Roadranger.com document. If you have an original 4-speed, maybe you could compare the input shaft and bolt pattern with a 280V0 at the Transmission Exchange and see if they match.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 783
From: Simi Valley, CA
The 1955/56 F750/900's offered the Clark H/D 5 Speed Overdrive Type 264-VO-2 as an option. But F750's used Lincoln derived Y blocks.
It wasn't till 1959 that the Clark 5 Speed O/D was available with a Ford Y block (292). The trans is the previously mentioned 251-VO-18.
This same transmission was used 1964/72, however only the 1964's still offered a 292 engine. The FT engines were optional in 1964, and standard beginning in 1965. An FT bellhousing won't fit a Y block. The Clark's transmission case is different with an FT (330/361/391).
1964 B/C/F500/600 (292) with a Clark 5 speed O/D used: B8Y-7505-A .. Bell Housing.
B8Y-7505-A was also used on: 1957/64 H/D 3 speed F350's; 1957/64 4 speed: C550/600's, B/F100/600's; 1963/64 N500/700's.
& = 1954/56 F100/350's with a H/D 3 speed, 1954/56 F350/F600 4 speeds, and a few F350/600's with a 5 speed.
NOTE: B8Y-7505-A replaced the previous Ford part numbered bell housing used in 1954/56. I don't have a ref as to what that earlier number was.
It wasn't till 1959 that the Clark 5 Speed O/D was available with a Ford Y block (292). The trans is the previously mentioned 251-VO-18.
This same transmission was used 1964/72, however only the 1964's still offered a 292 engine. The FT engines were optional in 1964, and standard beginning in 1965. An FT bellhousing won't fit a Y block. The Clark's transmission case is different with an FT (330/361/391).
1964 B/C/F500/600 (292) with a Clark 5 speed O/D used: B8Y-7505-A .. Bell Housing.
B8Y-7505-A was also used on: 1957/64 H/D 3 speed F350's; 1957/64 4 speed: C550/600's, B/F100/600's; 1963/64 N500/700's.
& = 1954/56 F100/350's with a H/D 3 speed, 1954/56 F350/F600 4 speeds, and a few F350/600's with a 5 speed.
NOTE: B8Y-7505-A replaced the previous Ford part numbered bell housing used in 1954/56. I don't have a ref as to what that earlier number was.
Last edited by NumberDummy; Nov 5, 2007 at 07:06 AM.
Trending Topics
Elder User
Joined: May 2004
Posts: 565
Likes: 3
From: saxton pa.
5 speed swaps
Rick as far as 5speeds go there is quite a few that will interchange, the 280/285 series will fit where the old 251/260 series was installed. The tranny from the later trucks will fit, the length may be different. Ford boltpattern and input shaft length are the critical factors , IH used the same boltpattern but used a longer input shaft. Input shafts interchange from same ratio trannys. PTO's for the older Clarks that use a geared adapter are getting hard to find. The later ones are fairly easy to come by, parts are not too expensive and they are easy to work on. At the salvage yards look for 80's and back F500 and up gas powered trucks these will bolt to the 292 Y block bellhousing , just make sure to check input shaft length. Many of the later trannys will be Eaton/Fuller's these will fit also , there are many driveshaft yokes available to make your driveshft adapt The Clarks will fit where the old NP540/542 and Fuller 5spds were installed. They also bolt up where the HD Warner 4speed was. There are many variations on the parking brake setups , there is some interchange on the parking brakes and shift tower setups. I hope this helps , let me know if you need more INFO
Hotwrench
Hotwrench
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!
Joe Kucinski
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!
Michael S. Palmer
The Best F-150 Deal of Every Trim Level (XL through Raptor)
Joe Kucinski
Thread Starter
|
Logistics Pro
Joined: Feb 2005
Posts: 3,952
Likes: 117
From: Upper Left Coast
Bill and Hotwrench
Thanks for the info!!
I was beginning to get a little discouraged. I called the Transmission Exchange again and talked to "the guy in the know" he told me that the Clark 5 speeds were just not available anymore and the 5th gears and some other parts were non existant (if one needed to rebuild them)
I just would like to find a trans that might bolt up to the Y bell and have an OD with syncros in 2nd- 5th.
Thanks for the info!!
I was beginning to get a little discouraged. I called the Transmission Exchange again and talked to "the guy in the know" he told me that the Clark 5 speeds were just not available anymore and the 5th gears and some other parts were non existant (if one needed to rebuild them)
I just would like to find a trans that might bolt up to the Y bell and have an OD with syncros in 2nd- 5th.
Originally Posted by HOTWRENCH
Rick as far as 5speeds go there is quite a few that will interchange, the 280/285 series will fit where the old 251/260 series was installed. The tranny from the later trucks will fit, the length may be different. Ford boltpattern and input shaft length are the critical factors , IH used the same boltpattern but used a longer input shaft. Input shafts interchange from same ratio trannys. PTO's for the older Clarks that use a geared adapter are getting hard to find. The later ones are fairly easy to come by, parts are not too expensive and they are easy to work on. At the salvage yards look for 80's and back F500 and up gas powered trucks these will bolt to the 292 Y block bellhousing , just make sure to check input shaft length. Many of the later trannys will be Eaton/Fuller's these will fit also , there are many driveshaft yokes available to make your driveshft adapt The Clarks will fit where the old NP540/542 and Fuller 5spds were installed. They also bolt up where the HD Warner 4speed was. There are many variations on the parking brake setups , there is some interchange on the parking brakes and shift tower setups. I hope this helps , let me know if you need more INFO Hotwrench
Hotwrench
Senior User
Joined: Jan 2002
Posts: 453
Likes: 0
From: australia
hi all i have a 292y with a clark 5 speed i change the motor to a 361 and used the same box & bell fits up just nice no mod,s my truck was a 1963 f700 with a 2 speed hope this helps hi numbers & hotwrench im thinking hotwrench told in the 1st place good luck rick
Cross-Country
Joined: Jan 2012
Posts: 79
Likes: 4
From: South East Florida
I too have been looking for an "easy" 5 speed manual OD conversion for my Y-Block in a '54 Ford F-100, but all seem too hard to find or too hard to execute. I'm going to try to find a 9" rear end with lower gears from the late 60's or early 70's to bolt in before I tackle the tranny issue. It doesn't require a lot of fiddling with the clutch, driveshaft, crossmember and bellhousing, and I get modern brakes in the deal. It might just be enough for me.
Have you looked at John Mummerts T5 to Y block conversion kits? See it on www.ford-y-block.com While not bolt in, it seems the best approach to me.
Anybody have experience with the Mummert's t5 conversion?
Have you looked at John Mummerts T5 to Y block conversion kits? See it on www.ford-y-block.com While not bolt in, it seems the best approach to me.
Anybody have experience with the Mummert's t5 conversion?
Logistics Pro
Joined: Jul 2004
Posts: 4,363
Likes: 76
From: Utah
This is probably way OT for this thread. but thought i would at least throw this out there. Ive got a 317 Lincoln Yblock with (i think 4spd?) pto etc from a 54 ford coe C-800 super duty. i dont have any #'s off it yet but maybe theres something there someone can use? ? I starting to wonder why i even spent the time to pull that engine.
cheers
josh
cheers
josh
Thread Starter
|
Logistics Pro
Joined: Feb 2005
Posts: 3,952
Likes: 117
From: Upper Left Coast
This is probably way OT for this thread. but thought i would at least throw this out there. Ive got a 317 Lincoln Yblock with (i think 4spd?) pto etc from a 54 ford coe C-800 super duty. i dont have any #'s off it yet but maybe theres something there someone can use? ? I starting to wonder why i even spent the time to pull that engine.
cheers
josh
cheers
josh
Since I asked the question nearly 5 years ago, (the thread is 5 yrs old!) I have moved on!
I'm still doing an OD transmission and I'm still using a 292 Y-Block.
In fact I have both sitting in the frame right now!
But it's an E4OD electronic automatic that came out of a 1994 F-450
I still need to finish the trans mounts......... the next step will be to get everything sand blasted (frame, cab doors, and other sheet metal etc.)
Logistics Pro
Joined: Jul 2004
Posts: 4,363
Likes: 76
From: Utah
Well some might think "OT" means "over the top" I donno!
Since I asked the question nearly 5 years ago, (the thread is 5 yrs old!) I have moved on!
I'm still doing an OD transmission and I'm still using a 292 Y-Block.
In fact I have both sitting in the frame right now!
But it's an E4OD electronic automatic that came out of a 1994 F-450
Since I asked the question nearly 5 years ago, (the thread is 5 yrs old!) I have moved on!
I'm still doing an OD transmission and I'm still using a 292 Y-Block.
In fact I have both sitting in the frame right now!
But it's an E4OD electronic automatic that came out of a 1994 F-450
lol
Im reading this on my phone and it doesnt show the thread dates, at least thats my story and im sticking to it... that combo looks really nice in there. have you driven it yet? should be a nice cruiser.