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| | | | Joined: Feb 2007 Posts: 435 'Bolter | | 'Bolter Joined: Feb 2007 Posts: 435 | OK, here's the deal. I've been wanting an OD tranny for my 64 with the 230/3 speed on the tree. I know I could go with the T-5 but I don't want to cut the floors and not have it original. I got my info packet from GM the other day, and they say there was an option for the OD for my model, but it was only available with 4:11 gears(I have 3:73)and don'
t think that should be an issue. My question is this...what exactly is the correct Borg Warner unit I'm looking for? R-10 or the R-11? I have some friends that are involved with sprint car racing and have asked several of them to keep their ears open for the unit I may need, and leads are coming in, but I want to make sure I get the right unit to make the install go as easy as it can. I've been looking on the web and all through the search files, but can't seem to find the right info. There is just too much info out there, and all I want to know is which unit am I looking for? Any help would be appreciated. Thanks
Tramp | | | | | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | The SM 318/R-10 combo would be correct for a '64, but the SM326/R-12 is stronger and is full syncro. Both will work fine, I beleive that the later unit is a bit longer and may require a shorter driveshaft.
Bill Burmeister
| | | | | Joined: Feb 2007 Posts: 435 'Bolter | | 'Bolter Joined: Feb 2007 Posts: 435 | Thanks Bill. Synchro is nice, but I'm used to not having it with the original tranny in it now. I'm not needing the stump pulling power, just want to get the RPM's down when I take it out to play. | | | | | Joined: Apr 2005 Posts: 2,097 'Bolter | | 'Bolter Joined: Apr 2005 Posts: 2,097 | Your 64 probably has the short tailshaft trans which is about 15" long. Both OD transmissions are 22" long. In this instance you will have to modify the driveshaft. The later Saganaw unit will require a fine spline front yoke and some tweaking of the shifter rods. Either one would work fine in your truck with the 3:73 gears.
Fred
1956 3100 Pickup/Red/350/3sp OD/PS/Disc Brakes
1957 Bel Air Sport Coupe/Red/355/TH350/PS/Disc Brakes
2017 Silverado LT Single Cab SB/Black/5.3/6 Speed Trans
1947 Willys CJ2A w/F-Head engine
| | | | | Joined: Aug 2006 Posts: 486 'Bolter | | 'Bolter Joined: Aug 2006 Posts: 486 | You can usually find the OD transmissions on Ebay but be sure to find out the shipping cost before bidding. Unless it's close by, it will cost more to ship it than the selling price in the auction.
'64 swb stepside (gone)
'57 1 ton
'53 phone truck
'59 swb
'46 1 1/2 ton
'68 swb gmc
| | | | | Joined: Nov 2005 Posts: 266 Shop Shark | | Shop Shark Joined: Nov 2005 Posts: 266 | You'll also want to get a wiring diagram for the transmission. I went to the local library and found what I needed in an old Chilton's manual.
I found my R10 at a swap meet. Try digging around there, they exist but can be difficult to find. | | |
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