North American Turbocoupe Organization



Driveshaft play
CB900Fer Offline
Member
#1
So I posted on another thread a few weeks back about a relatively bad vibration I've been having for about 8 months to a year now. I was thinking possibly my driveshaft was misaligned, even though I don't know of any index markings. Also, all my balancers/weights are still intact.

Well I crawled under the car today to check maybe driveshaft bolts, or maybe a bearing in the rear end, but everything is tight, with NO play.

Then I went to the front of the driveshaft and pushed/pulled up and down (perpendicular to the driveshaft), and I have about 1/8" of play. And when I push/pull up and down I can hear it going further into the transmission a bit (maybe 6 inches?). (There is no forward/backward slop.)

So my question is, what bushing/bearing is this? After searching others' posts i get the idea that there are one of two bushings it could be, but I may be mistaken. Any help on this?

Also I noticed that there was a $120 tool to get this bushing out. Is there anywhere this tool can be rented, or a homemade way to get this bushing out?
1979 Honda XR250
1980 Honda CR80 Elsinore - sold
1981 Honda CB900F Super Sport
1988 Ford Thunderbird TC - 2.3T, 5 speed, K&N, Gillis, dynomax dual exhaust.
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Jeff K Offline
Administrator
#2
Assuming the play isnt in the U joint, the problem is a worn out tailshaft bushing. Its just a thin wall (brass??) bushing pressed into the end of the tailshaft housing. The good news, a kit with a new bushing and seal costs under $10. The bad news: Bushing is a PITA to replace (must remove the tailshaft housing) unless you have the special bushing removal/install tool. If you have the tool, removing the old bearing and installing the new one takes under 5 minutes once the driveshaft has been removed. The tools show up on Ebay every so often. Might also want to check with a local "mom and pop" tranny shop and see if they will loan you the tool for a few bucks. I dont think the parts stores have these tools available for rent.
Jeff Korn

88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 24 psi, forced air IC, water injection, BPV, Ranger cam, subframes, etc., etc.
86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP N2O, ignition, gears, suspension, etc., etc.
05 Taurus SEL Duratec daily driver
04 Taurus Duratec (wifes car)
02 Pontiac Grand Prix GT
95 Taurus GL Vulcan winter beater
67 Honda 450 Super Sport - completely customized
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CB900Fer Offline
Member
#3
Okay, that's what I assumed from reading the other threads on the topic. So to remove the tailshaft housing I assume you would have to remove the tranny from the car? (honestly not a big deal since i've done it once by myself already :p Definitely not ideal though).

But I also know a guy in town who has about 7 TCs/cougars, and does a bunch of work on them. I might check to see if he happens to have the tool. Otherwise I might keep my eyes open on Ebay.

Thanks Jeff!
1979 Honda XR250
1980 Honda CR80 Elsinore - sold
1981 Honda CB900F Super Sport
1988 Ford Thunderbird TC - 2.3T, 5 speed, K&N, Gillis, dynomax dual exhaust.
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Not B Anymore Offline
Administrator
#4
If the guy you know doesn't have the tool, you can borrow mine if you want. Just pay to ship it both ways.
Brian Leavitt
'86 TC 5-Speed -- MS2x w/COP | 83 lb. injectors | T3/T4 50 Trim Stage 3 .63AR | Full 3" Exhaust - No Cat | Motorsport FMIC | Ranger Roller | Ported E6 | Walbro 255HP | Kirban | 20psi | 120-amp 3G | 8.8" 3.55 rear | '03 Cobra Wheels
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kunar Offline
Member
#5
got any pics of said tool? any way to make one ?
1987 Turbo Coupe
1987 Ranger 4.0, 4x4
1991 Escort GT
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5.0TurboCoupe1988 Offline
Posting Freak
#6
here is the tool i bought. it's $114 with shipping. it works great.

http://www.atoztool.com/2200.html

BTW, the bushing is not brass. i think it's steel.
1988 TC 2.3/5-Speed, 148K
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CB900Fer Offline
Member
#7
Awesome guys, thanks for all the help.

B, I emailed the guy here in town, so I'll see what he's got. Otherwise I'll probably take you up on that offer. Looks like it'll be around $30 total to ship it both ways.

Thanks again!
1979 Honda XR250
1980 Honda CR80 Elsinore - sold
1981 Honda CB900F Super Sport
1988 Ford Thunderbird TC - 2.3T, 5 speed, K&N, Gillis, dynomax dual exhaust.
Reply

CB900Fer Offline
Member
#8
Okay, it's been a while since I've updated my post, so I thought I would finish off the thread for anyone else who may be having this same problem. Thanks to B who loaned me the tool, the bushing came out like a breeze -- couldn't have been easier. Probably the "hardest" part was getting the rubber part of the seal out of the transmission housing, but a little gentle prying with a screwdriver it came out fine.

When I got the bushing out I could see the problem -- the inside was clearly worn: it was brass colored (for a normally steel-colored bushing), and there were wear marks even into the oil grooves. So I gently hammered the new bushing in with the same removal tool, and now I have no vibrations -- from the driveshaft area anyway :p

Previously traveling down the freeway at about 70-80 mph my shift lever and clutch were transmitting an insane and obnoxious amount of vibration, but now there is only a slight vibration from the engine. And I now that I have the tranny bushing fixed I think have uncovered the fact that my tires are out of balance Smile So I still have some sort of vibration that starts at about 60mph, but it's definitely different than before.

So, my thanks goes to B -- a $130 job went down to only $30. Thanks all!

-Seth
1979 Honda XR250
1980 Honda CR80 Elsinore - sold
1981 Honda CB900F Super Sport
1988 Ford Thunderbird TC - 2.3T, 5 speed, K&N, Gillis, dynomax dual exhaust.
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