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#685517 - Wed Oct 13 2010 12:57 AM SM-420 question  
64 Pete  Offline
Shop Shark
Joined: Mar 2004
Posts: 79
Pa
Hi,
I was hoping someone has an SM420 laying around and could measure from the front of transmission to centerline of shift tower.
My SM465 measures 5 1/2".
The SM420 is 10 1/2" overall, and the SM465 is 12"long.
(http://advanceadapters.com/resources/964/Manual-Transmissions.html)
Just trying to get an idea of shifter hole location with added length of OD unit.
Thanks.
Pete



#685527 - Wed Oct 13 2010 01:12 AM Re: SM-420 question [Re: 64 Pete]  
bowtiefan  Offline
Wrench Fetcher
Joined: Oct 2010
Posts: 149
Greenwood IN
Pete
Have one in the shop - can measure it tomorrow.


#685700 - Wed Oct 13 2010 02:30 PM Re: SM-420 question [Re: bowtiefan]  
oldbluetruck  Offline
Shop Shark
Joined: Jan 2002
Posts: 3,176
SoCal
What is the OD unit?

TIA


Dennis
-there is nothing stronger than the heart of a volunteer-

#685712 - Wed Oct 13 2010 02:51 PM Re: SM-420 question [Re: oldbluetruck]  
64 Pete  Offline
Shop Shark
Joined: Mar 2004
Posts: 79
Pa
Originally Posted By oldbluetruck
What is the OD unit?

TIA


Dennis,
I'll be using one of these Overdrives from Advance Adapters.
Goes between Bellhousing and transmission.
Moves everything back 7 3/8"
(they say 7 1/2")
see:
http://advanceadapters.com/product/1941/760002M-27.html
Note:
Cheaper thru Summit

Pete


#685749 - Wed Oct 13 2010 04:43 PM Re: SM-420 question [Re: 64 Pete]  
oldbluetruck  Offline
Shop Shark
Joined: Jan 2002
Posts: 3,176
SoCal
Thanks.

Would this be cheaper and easier than rear gears from Patrick's?

It shows to be 80 pounds. Would a brace be needed?

And the shifter would be pushed back. Are you going to modify the shifter or simply have the shifter closer to the seat?

Thanks for the information.


Dennis
-there is nothing stronger than the heart of a volunteer-

#688117 - Thu Oct 21 2010 06:58 PM Re: SM-420 question [Re: oldbluetruck]  
64 Pete  Offline
Shop Shark
Joined: Mar 2004
Posts: 79
Pa
Originally Posted By oldbluetruck
Thanks.

Q. Would this be cheaper and easier than rear gears from Patrick's?
I have a 1 ton so I'm not going to find gears too easily.

Q. It shows to be 80 pounds. Would a brace be needed?
Advance Adapters advised going to a crossmemnber and avoid the bellhousing mount.
Q. And the shifter would be pushed back. Are you going to modify the shifter or simply have the shifter closer to the seat?
Truck will have separate seats but probably still need to do something to lever.

Thanks for the information.
Sorry this took so long.


#689651 - Wed Oct 27 2010 06:26 PM Re: SM-420 question [Re: 64 Pete]  
oldbluetruck  Offline
Shop Shark
Joined: Jan 2002
Posts: 3,176
SoCal
Thanks for the reply.

I wish you the best with your project


Dennis
-there is nothing stronger than the heart of a volunteer-

#689838 - Thu Oct 28 2010 05:46 AM Re: SM-420 question [Re: oldbluetruck]  
bigbadswingdaddy  Offline
Shop Shark
Joined: Dec 2004
Posts: 2,321
san francisco
4 1/2 inches back from the bellhousing.


#690465 - Sat Oct 30 2010 01:12 PM Re: SM-420 question [Re: bigbadswingdaddy]  
64 Pete  Offline
Shop Shark
Joined: Mar 2004
Posts: 79
Pa
Originally Posted By bigbadswingdaddy
4 1/2 inches back from the bellhousing.


Thanks for the measurement.
Looks just swapping the SM-465 in place of a 420 moves lever back 1", plus the 7 1/2" for the OD unit.
Now I'll have to see how putting in a 292 effects driveline location.

Pete
"Measure several times, cut once. I hope!"


#690492 - Sat Oct 30 2010 03:51 PM Re: SM-420 question [Re: 64 Pete]  
Frank50  Offline
Shop Shark
Joined: Nov 2000
Posts: 1,497
Central IL, again
I followed the link to the advance site. Very interesting item. At 27% reduction that's a nice O/D. I did not see the price on that page. How do I see the price? I also saw that they are saying out of stock until 12-1-10. Do they offer that with the smaller bearing retainer to fit in front of a SM-420?
Good luck. Keep us informed about how this works in your Panel truck. Oh, and pictures! We love pictures.


Frank50

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