Labor Day Putting down your wrenches or time for MORE wrenching? 
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| | | Forums66 Topics128,009 Posts1,055,297 Members48,419 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Jan 2019 Posts: 2 Moderated | | Moderated Joined: Jan 2019 Posts: 2 | I am new to these forums so I hope I am doing this correctly. have a 1954 3100. We have it completely disassembled and will be putting it back together with the original 235 engine. My question is about the transmission and bellhousing along with questions about the clutch. I have a T5 transmission. Tag numbers show it to be a 93+ 2.2 L, S-10 transmission. I have a bell housing (3837001) These numbers say it is a 1957 Bellhousing for both 3 and 4 speeds. I need an adaptor that will combine these two. I have found adaptors on-line but no match for these two. Any information where to find one and also what clutch set up to use would be very helpful. Thank You Scott , | | | | | Joined: May 2005 Posts: 8,878 . | | . Joined: May 2005 Posts: 8,878 | Do you need an adapter? My understanding is the T5 from a GM application already has the correct bolt pattern for our old trucks. Am I missing something? The clutch disc needs to fit the input shaft, or swap shaft to fit original clutch disc.
| | | | | Joined: Mar 2014 Posts: 4,475 Moderator, Electrical Bay | | Moderator, Electrical Bay Joined: Mar 2014 Posts: 4,475 | I don't think you'll need an adapter but the holes in the transmission will have to be enlarged by a mm or 2. The spline may be too long by 1/2 inch or so and you will have to use the proper clutch disc to mate with the T5.
~ Jon 1952 1/2 ton with 1959 235 | T5 with 3.07 rear end
| | | | | Joined: Sep 2010 Posts: 2,306 'Bolter | | 'Bolter Joined: Sep 2010 Posts: 2,306 | Take a look at the driveline tech tips at the top of the page lots of imfo. | | | | | Joined: Apr 2002 Posts: 2,168 A teacher, but always an apprentice. | | A teacher, but always an apprentice. Joined: Apr 2002 Posts: 2,168 | Also, search up Lugnutz in the User List. He will be your new best friend regarding the T5. He is the go to guru for all things T5 on this site and is very helpful to newbies and novices like us when it comes to this swap. He has a site devoted solely to the T5. I will be picking his brain and combing through his site when it comes time for me to tackle my T5 swap as well. | | | | | Joined: Jan 2019 Posts: 2 Moderated | | Moderated Joined: Jan 2019 Posts: 2 | Ok. Thanks. I will look up lugnutz. My understanding is that the older T5 transmission was the same bolt pattern as the bellhousing. And somewhere along the line ( I am not sure what year) Chevy and Ford used the same bolt pattern and that is the transmission that I have. I have seen the adapter on line. But not for the 4 speed bellhousing that I have. The web site selling them said the adapter was for the 3 speed and the 4 speed is supposed to be a different bolt pattern. I am going to contact them tomorrow. There is a phone number on their web site. Thanks | | | | | Joined: Jan 2016 Posts: 36 'Bolter | | 'Bolter Joined: Jan 2016 Posts: 36 | OK, long time lurker, never poster
How do I create a new thread?
I just scored a 2 groove Saginaw for my 50 GMC 250, now I need to find a shifter and with Patrick's gone. I'm not having a lot of luck finding options.
1950 GMC 250 Pickup 1965 Mustang Convertible 1972 K5 Blazer 1973 Buick Centurion 455 Convertible
| | | | | Joined: Apr 2005 Posts: 7,440 Bolter | | Bolter Joined: Apr 2005 Posts: 7,440 | Looks like you figured it out.. A word of advise, in relation to your other thread, asking for someone to sell you parts is frowned upon outside the Swap Meet Forums.
Martin '62 Chevy C-10 Stepside Shortbed (Restomod in progress) '47 Chevy 3100 5 Window (long term project) ‘65 Chevy Biscayne (Emily) ‘39 Dodge Business Coupe (Clarence) “I fought the law and the law won" now I are a retired one! Support those brave men/women who stand the "Thin Blue Line"! Hug a cop! USAF 1965-1969 Weather Observation Tech (I got paid to look at the clouds)
| | | | | Joined: Apr 2005 Posts: 2,097 'Bolter | | 'Bolter Joined: Apr 2005 Posts: 2,097 | Chevy trucks used the same bell housing mounting pattern for all 3 speed and 4 speed manual transmissions from 48 up. This includes V-8's and 6 cylinder applications. Cars changed in 55 to the same mounting pattern. If the supplier doesn't know this fact, they are probably not the right source to purchase an adapter from. You should also get some guidance on using supposed similar bolt pattern applications on Ford & Chevy transmissions. Someone here should have that information. 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: Mar 2014 Posts: 4,475 Moderator, Electrical Bay | | Moderator, Electrical Bay Joined: Mar 2014 Posts: 4,475 | OK, long time lurker, never poster
How do I create a new thread?
I just scored a 2 groove Saginaw for my 50 GMC 250, now I need to find a shifter and with Patrick's gone. I'm not having a lot of luck finding options. Those were just Hurst Competition Plus shifters with slightly modified linkage and a shift lever to mimic the original 4 speed one. You can buy them new for about $175 or used for $75 and make your own linkage rods or modify the ones you get.
~ Jon 1952 1/2 ton with 1959 235 | T5 with 3.07 rear end
| | | | | Joined: Sep 2011 Posts: 2,951 'Bolter | | 'Bolter Joined: Sep 2011 Posts: 2,951 | Scott 54 3100, Howdy! Glad to hear you are excited about the T5. It's true, I am a self proclaimed T5 addict! Sounds like you have a World Class T5 from a 1994 or newer S10. It will have a FORD bolt pattern where it bolts to the bell housing. T5s in 1983-1993 Chevy S10 trucks and GMC S15 and Sonoma trucks have a Muncie bolt pattern for the bell. 1994 and up have a FORD pattern case. T5s in 1983 - 1992 Camaro and Firebird applications have the Muncie pattern too. !993 and up Camaro/Firebird have a FORD pattern case. 1993 and newer S10/S15/Sonoma T5s are World class. 1988 and newer Camaro/Firebird T5s are World Class. I have no experience trying to mate a FORD case bolt pattern to a Chevy bell. I know there are adapter plates to mate a Ford case to a Muncie bolt patter bell. I'm just not sure about your particular bell bolt pattern. You might consider swapping the input shaft. Some S10 input shafts have 26 splines. Most earlier shafts are 14 splines. If your T5 has a 21 tooth gear and 14 splines, then swapping to a Jeep shaft with 21 gear teeth and 10 splines will allow you to use the easier to find stock 10 spline Chevy clutch kit. I am happy to answer more questions if you can't find answers on my website T5 page. LINK HEREI recommend you contact Dave Farwell - He will know what adapter plate to use. Vintage Metalworks David Farwell 3222 Alexander Rd Atwater, Ohio 44201 330-322-3102 Email - [email protected]Here is a link to his website. LINK HERE | | | | | Joined: Mar 2010 Posts: 10,270 Renaissance Man | | Renaissance Man Joined: Mar 2010 Posts: 10,270 | The T-5 guru has spoken. He is the go-to guy for my money. Just don't call him Dipstickz. 
1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission
| | | | | Joined: Apr 2002 Posts: 2,168 A teacher, but always an apprentice. | | A teacher, but always an apprentice. Joined: Apr 2002 Posts: 2,168 | | | |
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