Pay Dues or become a Site Supporter |
|
Transmissions and Rear Ends Three on the tree or four in the floor? Shift it all here. |
|
Thread Tools |
#1
|
||||
|
||||
Twin Stick Pickups.
So after towing 6000+ pounds with my 64 GMC I could easily see the need for either a close ratio tranny or a gear splitter. I look into Gear Vendors and they are just a complete rip off. So searching youtube I ran across a diesel pickup with a twin stick...looking into it I found out it has an Sm-465 and an Advanced Adapters Ranger 2 speed Auxiliary trans. Love the idea of having a twin stick, but also like the price....$1600 vs 3000+ for a gear vendors. Also would make the truck happier at 55-65 mph. Anyone done this? Would love to hear some reviews.
__________________
"Excuse the rust I use my truck" 1964 GMC 1500 305E/sm420 4 barrel intake mod and dual exhaust. To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. 1964 Chevy C20 292/SM420 1966 Chevy C10 292 hotrod 6/TKO600 My youtube channel aka Military Chevy: To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. |
#2
|
||||
|
||||
Re: Twin Stick Pickups.
Quote:
__________________
Ed Snyder Medford, Oregon 1962 1000 Pickup 401M & Muncie 318 with overdrive 1962 K1000 Suburban 401M & SM420 1967 CM1500 pickup 351E & NP435 |
#3
|
||||
|
||||
Re: Twin Stick Pickups.
Quote:
__________________
"Excuse the rust I use my truck" 1964 GMC 1500 305E/sm420 4 barrel intake mod and dual exhaust. To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. 1964 Chevy C20 292/SM420 1966 Chevy C10 292 hotrod 6/TKO600 My youtube channel aka Military Chevy: To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. |
#4
|
|||
|
|||
Re: Twin Stick Pickups.
Ed, I remember your dad showing me that but it's been too many years. Can you provide us with more details? I'm doing more and more towing with my GMC and I may consider doing something similar.
Is it an overdrive only or does it actually have in-between gears? I have the handbrake adapter on the back of my transmission. I'm assuming the driveshaft would have to be shortened? TJ, please keep me posted on what you find out. Thanks, David |
#5
|
||||
|
||||
Re: Twin Stick Pickups.
Quote:
__________________
"Excuse the rust I use my truck" 1964 GMC 1500 305E/sm420 4 barrel intake mod and dual exhaust. To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. 1964 Chevy C20 292/SM420 1966 Chevy C10 292 hotrod 6/TKO600 My youtube channel aka Military Chevy: To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. |
#6
|
||||
|
||||
Re: Twin Stick Pickups.
Quote:
It's a totally separate two speed transmission connected to the rear of the main 4 speed transmission by a short driveshaft. It obviously requires shortening the main driveshaft. It's mounted with a couple of angle iron cross-members. It's operated with a long cable connected to the big knob on the dash just to the right of the ignition switch. Although theoretically you could operate the two boxes together, giving you 8 forward speeds, in reality (for me anyway) it doesn't work easily enough to do gear-splitting. The way I use it is to leave it in direct 1:1 drive while shifting up through the gears, then pull out the knob while in 4th to go into the 1:0.82 overdrive. This turns the 4.57 rear end into a 3.75 effective ratio. Downshifting the Brownie requires a well-timed double-clutch, so I usually don't downshift it until I'm at a complete stop. When I drove it out here from Wichita, I just left it in overdrive for most of the trip. Driving it around town now, though, I just leave it in direct drive. It does have a bit of a whine when in overdrive. Ed
__________________
Ed Snyder Medford, Oregon 1962 1000 Pickup 401M & Muncie 318 with overdrive 1962 K1000 Suburban 401M & SM420 1967 CM1500 pickup 351E & NP435 |
#7
|
||||
|
||||
Re: Twin Stick Pickups.
Here's a link to the one I'm looking at. This one mounts in between the bell housing and the tranny. http://www.advanceadapters.com/produ...etainer-index/
__________________
"Excuse the rust I use my truck" 1964 GMC 1500 305E/sm420 4 barrel intake mod and dual exhaust. To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. 1964 Chevy C20 292/SM420 1966 Chevy C10 292 hotrod 6/TKO600 My youtube channel aka Military Chevy: To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. |
#8
|
|||
|
|||
Re: Twin Stick Pickups.
Thanks for the reminder Ed. I remember the knob on the dash and mounting angles after I saw your pics. I might call you in a few days to chat more about the in-between gears, or the lack of.
TJ, you really got me thinking about the twin stick. We plan to move to CO one of these days and the in-between gears will be critical when towing grades. I only have approx 50K miles on the orig motor and trans, so I don't want (or need) to replace either. I have confidence both will last for many years, just need some gearing assistance. Ironically, it's amazing how many gears newer (stock) vehicles are providing. I guess there is enough room on the floor hump to move things around? I wonder if the transmission shifter will hit the seat? May need to heat it and bend it forward? |
#9
|
||||
|
||||
Re: Twin Stick Pickups.
From what I have seen your Will need to do something with the shifter if you have a bench seat. The length of the box measures around 7.5 inches...that that would be how far the main trans would move back. The auxiliary will fit in fine with some mods to the trans tunnel cover. I know of a guy who did the install so I'll try and get some pictures of a link on here.
__________________
"Excuse the rust I use my truck" 1964 GMC 1500 305E/sm420 4 barrel intake mod and dual exhaust. To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. 1964 Chevy C20 292/SM420 1966 Chevy C10 292 hotrod 6/TKO600 My youtube channel aka Military Chevy: To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. |
#10
|
||||
|
||||
Re: Twin Stick Pickups.
I've got one of these, was going to put it in my one ton, but I sold it last year. But it will work in my rescue squad.
The Spicer 5831-B Auxiliary Transmission pictured on this page is the one I have, it come out of a 1965 GMC W5500, and as you can see its not really that big. the main thing is to get all the parts off the donor truck, many have gotten just the Auxiliary Box then wonder how they are going to hook it up. the truck mine came from was headed to the crusher at the time, it was set aside to get these parts removed just in time to keep it from being lost forevery.
__________________
Links to Other Places: To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. on FacePage. To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. . the To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. on FacePage. Owner of: 1965 GMC 3500 Custom Rescue Squad {Black Built Bodies} 1968 Ford Galaxie 500 Convertible 2006 Yamaha Rhino 450 2008 GMC HHR Panel. |
Bookmarks |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
6066 GMC Diesel pickups? | Archiver | Previous Forum Posts | 0 | December 28th, 2008 06:45 AM |
RE: Pickups-N-Panels | Archiver | Previous Forum Posts | 0 | April 1st, 2002 12:37 AM |
RE: speaking of 1963 GMC pickups | Archiver | Previous Forum Posts | 0 | March 26th, 2002 01:39 AM |
speaking of 1963 GMC pickups | Archiver | Previous Forum Posts | 0 | March 22nd, 2002 01:12 AM |
FW: Pickups-N-Panels | Archiver | Previous Forum Posts | 0 | August 6th, 2001 01:22 AM |