Drivetrain shutter

Maxod · Post by **Maxod** » Thu Apr 05, 2007 10:10 pm

This is weird...and I'm hoping someone has experienced the same thing. I have a shutter that I can feel on the gas pedal and gear shifter when I start from a standing stop. It is more pronounced on hard takeoffs and is almost non existent when I drive away slowly. I have a 70 F250 4x4 highboy with a NP 435 tranmission and a dana 24 transfer case. Both units have been rebuilt recently, but the shutter still exists. I have been thinking that the pinion bearing might be bad, (I have a dana 60 rear) but a friend said the nature of the dana 24 without a support bracket makes it move around when pulling or hauling. I was thinking about changing the insulators on the transfer case to see if the shutter subsides or lessens. Anyone have a thought on this problem.

Dave

averagef250 · Post by **averagef250** » Thu Apr 05, 2007 10:27 pm

You're friend's absolutely right. Go with polyurathane T-case mounts. Jeff's bronco graveyard sells them. That should solve your problem. If not, the dana 24 does not take well to adding a strut (there's no good place to mount it). Instead of fooling with a strut on the 24 it's easier and more econimical to swap to a 205 case for which the factory strut rods are plentiful and work great.

jeepermc · Post by **jeepermc** » Thu Apr 12, 2007 1:29 pm

I get a shudder from Spring wrap...... Also check all u-joints...

heep70 · Post by **heep70** » Fri Apr 13, 2007 5:27 am

averagef250 wrote:You're friend's absolutely right. Go with polyurathane T-case mounts. Jeff's bronco graveyard sells them. That should solve your problem. If not, the dana 24 does not take well to adding a strut (there's no good place to mount it). Instead of fooling with a strut on the 24 it's easier and more econimical to swap to a 205 case for which the factory strut rods are plentiful and work great.

Didn't some D24s come stock with a strut

I have seen a few with them on. My neighbor has one on his 73 F250. It is stock because he doens't modify his stuff. They mount them on the bottom plate on the Tcase.

Maxod · Post by **Maxod** » Sat Apr 14, 2007 9:32 pm

Dustin,

You are the man...you were dead on with the bushings...I ordered the polyurethane bushings from Jeff's Bronco Graveyard. I installed them today. The shutter is gone and the drive train is absolutely vibration free. Please take a gold star out of petty cash for your advice. Thanks a bunch.

Dave

ptodave · Post by **ptodave** » Sun Apr 15, 2007 5:49 pm

How much for the poly bushings?

Maxod · Post by **Maxod** » Sun Apr 15, 2007 6:34 pm

The insultators (bushings) were $48.00. Jeffs shipped them in about 4 days to California. They are polyurethane and work much better than stock. I was able to install them without dropping any of the driveshafts or pulling the transfer case out completely. It was a trick my wife refers to as a McGyver move. Took about two hours total. Well worth the price and effort.

ptodave · Post by **ptodave** » Mon Apr 16, 2007 7:43 pm

Thanks for the info. Seems like you like them,and the price is good. Probably order me a set,again thanks.PTO.

460 crew · Post by **460 crew** » Mon Apr 16, 2007 8:07 pm

I have the poly's on my 70 with the 205 and a 460 not running a strut brace yet for 3 yrs and no complaints out off the drivetrain. Well worth the money.

jeepermc · Post by **jeepermc** » Tue Apr 17, 2007 4:38 pm

Is that Part # 23094?

Maxod · Post by **Maxod** » Tue Apr 17, 2007 5:54 pm

Transfer Case Mounts, Black
# 23094
New
1968-75 Ford F-250
Black
Price: $48.00

Yup

Dave

jeepermc · Post by **jeepermc** » Tue Apr 17, 2007 6:19 pm

Thanks. I think I'll order some up too. I'm sure mine are vintage 69..

averagef250 · Post by **averagef250** » Wed Apr 18, 2007 5:57 pm

Glad it worked! Don't know for 100% sure about the T-case strut on those 24's Greg. I've seen a few trucks with some homeade strut thing, but nothing factory. I fooled with a strut for the 24 in my truck for years. The only place to mount it was off the PTO cover and it didn't work so hot. After I burned up my 3rd 24 case, I switched a 205 in and added the factory strut. Works great!

jeepermc · Post by **jeepermc** » Wed Apr 18, 2007 6:03 pm

averagef250 wrote:Glad it worked! Don't know for 100% sure about the T-case strut on those 24's Greg. I've seen a few trucks with some homeade strut thing, but nothing factory. I fooled with a strut for the 24 in my truck for years. The only place to mount it was off the PTO cover and it didn't work so hot. After I burned up my 3rd 24 case, I switched a 205 in and added the factory strut. Works great!

How on earth did you burn up 3 D24's? Been beatin on mine for over 10 years with no probs... Don't have a strut on it either but would like to come up with somethin eventually...

Lightbulb just lit..... The 75 has been eatin center u-joints lately. Wonder if the bushings for the 205 are shot too......It came with a 24 and I swapped in a 205....

TRMMULLET · Post by **TRMMULLET** » Tue May 08, 2007 8:01 am

I had the same problem with te rubber style insulators. They like to rip out when you drag the T-case

I was wondering if they made the poly bushings and this site again answers any questions I may have

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