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Re: Dragstercoupler? [Re: fed] #1052970
08/16/11 07:41 PM
08/16/11 07:41 PM
Joined: Jul 2006
Posts: 9,366
Lehigh Acres, Florida
rickstershemi Offline
master
rickstershemi  Offline
master

Joined: Jul 2006
Posts: 9,366
Lehigh Acres, Florida
Quote:

Quote:

Most of the old FED's don't have the engine out far enough for a sliding coupler with lock ring. I had to cut mine down to 4" with a shorty Glide for my '68 Woody Gilmore chassis. The new FED's have the engine out farther and there is a lot more room. They are correct with using a piece of wood, or a plastic dowel rod to fill the space inside the transmission end of the coupler after you have set your 1/8" free movement so you don't take a chance on binding up the coupler. [/quote

Is there a stop inside the coupler for the wood to seat against? My coupler is short 1" 1/4 and i can push it all the way into the trans, so that the coupler seat against the trans rear bushing. It has been mounted with 1/2" of shims beetween trans and coupler. How long is the bushing in the trans and is it ok that the coupler seats to the small step insude the transbushing?




Seems the shorty Glide in this type of setup is normal.....seems short to me also....but here's some examples:

*****Powerglide 27 spline (3 7/8" long) pn 28190-40800



Rickster

Re: Dragstercoupler? [Re: Challenger 1] #1052971
08/16/11 08:22 PM
08/16/11 08:22 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
MR_P_BODY  Offline
Master

Joined: Jun 2003
Posts: 52,972
Romeo MI
Quote:

Quote:

Mounted with shimpack!




Wow, That's what I envisioned and no I don't think that will last long like that. That's a first for me, have never seen it done like that.
I would not run it like that.
Put a spacer inside like shown above.
Not much spline either, doesn't appear very strong being so short.
Thanks for the pictures, let's see what everyone else thinks.

Aren't you sitting on this in the car?

My shorty glides didn't have tailshafts like that.




When I built my brothers altered we used a full size
glide and I had to machine a spacer to slide inside
the trans that the coupler butted up to... never
seen shims riding on the seal like that

Re: Dragstercoupler? [Re: MR_P_BODY] #1052972
08/17/11 01:16 PM
08/17/11 01:16 PM
Joined: Jan 2003
Posts: 684
St. Charles, MO.
S
Slingshot383 Offline
mopar
Slingshot383  Offline
mopar
S

Joined: Jan 2003
Posts: 684
St. Charles, MO.
Question, that looked like you are running a full length tranny there. If so, use a shorty and then you can use a sliding coupler and solve your problem real easy. Even with torrington bearings, that setup is sure to eat up the seal on a regular basis.


1994 Undercover Chassis 125" altered stack injected big block, soon blown and injected Member of The Torque and Recoil Club
Re: Dragstercoupler? [Re: Slingshot383] #1052973
08/19/11 05:05 AM
08/19/11 05:05 AM
Joined: Jun 2010
Posts: 462
Stockholm, Sweden
fed Offline OP
mopar
fed  Offline OP
mopar

Joined: Jun 2010
Posts: 462
Stockholm, Sweden
Is there supposed to be a stop inside the coupler, beetwen the spacer and the pinionnut?


Cuda, -70
Valiant-65 AWB,
Valiant Signet200 -65 Topchopped dragcar.
Topolino Fuel Altered.
NostalgiaFED Sold,
SuperComp Bantam Altered, Sold
Ex Harlan Thompsons Nitro funny car American Graffiti Sold,
Re: Dragstercoupler? [Re: fed] #1052974
08/19/11 08:44 AM
08/19/11 08:44 AM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
MR_P_BODY  Offline
Master

Joined: Jun 2003
Posts: 52,972
Romeo MI
Quote:

Is there supposed to be a stop inside the coupler, beetwen the spacer and the pinionnut?




Actually yes there is... if you look at the first pics
showing the 1/8" space you can see the metal disc that
in there right at the pinion nut... if you dont have
it you can tack weld a plate/disc in there so the wood
spacer can bump into it... I'm suprized you dont
leak trans fluid at that point(my brothers did so
we sealed the disc with silicon)

Re: Dragstercoupler? [Re: MR_P_BODY] #1052975
08/19/11 09:37 AM
08/19/11 09:37 AM
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1 Offline
Too Many Posts
Challenger 1  Offline
Too Many Posts

Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Quote:

Quote:

Is there supposed to be a stop inside the coupler, beetwen the spacer and the pinionnut?




Actually yes there is... if you look at the first pics
showing the 1/8" space you can see the metal disc that
in there right at the pinion nut... if you dont have
it you can tack weld a plate/disc in there so the wood
spacer can bump into it... I'm suprized you dont
leak trans fluid at that point(my brothers did so
we sealed the disc with silicon)





That's right, in your application the coupler needs a plug in the end. It's like the plug we put in the back of a engine block to fill the cam hole. It's concave and when you install it with a hammer it spreads out tightly fitting in the hole.
It's more risky imo because it's another place for oil to leak out but's it's the only way in your case.
When I ran PG we used a shorty that doesn't seal at the coupler, it didn't use a tailshaft housing. Here's old couplers from PG with open ends. These are worn out because the hobbs are all torn up. Use plenty of anti seeze on them otherwise they won't last long. These were behind a dragster with 1400HP(632 big chief with nitrous)

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