Newer Bellhousing...will it bolt up? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

rcbildr · 03-14-2012, 10:33 PM

I have an SM-465 bellhousing that's for a hydraulic clutch, will that bolt up to the stock crossmember on my 63? The truck has an SM-420 in it now, and I was wondering if it would be worth it to dig out the newer bellhousing. Thanks!

**Captainfab** · 03-15-2012, 01:10 AM

That bellhousing can work, but you will have to remove the bellhousing crossmember, and add a rear trans mount. Which a SM420 does not have provisions for. You would also need an adapter ring for the front bearing retainer, as the '68 and newer bellhousings have a larger hole for the larger bearing retainer. If you need the hydraulic bellhousing, it would be easier to switch to the SM465.

rcbildr · 03-15-2012, 02:49 AM

Sorry, I should have included more details. I plan on using an SM-465/NP-203 combo as part of the project. I have a hydraulic clutch bellhousing for the SM-465. I was hoping to use the stock 63 crossmember, but it sounds like it won't. Is there a way to make it work? I was hoping to avoid drilling out frame rivets. Thanks!!!

rcbildr · 03-15-2012, 08:33 PM

IT looks like I'm going to have to remove the stock crossmember anyways. I did some more looking at the truck and noticed part of it was cut to clear the rear shackles for the leaf springs.

**Captainfab** · 03-16-2012, 12:13 AM

The original bellhousing crossmember will likely hit the bottom of that bellhousing. Besides you really don't need it in there since you will have a crossmember under the transfer case adapter anyway. If you don't want to deal with the rivets, just cut it off flush with the frame flanges.

03-14-2012, 10:33 PM	#1
rcbildr Registered User Join Date: Sep 2000 Location: Gold Bar, WA Posts: 1,216	Newer Bellhousing...will it bolt up? I have an SM-465 bellhousing that's for a hydraulic clutch, will that bolt up to the stock crossmember on my 63? The truck has an SM-420 in it now, and I was wondering if it would be worth it to dig out the newer bellhousing. Thanks! __________________ My Projects: 1960 GMC 1/2ton with 305 V6 (daily driver) 1963 Chevy 1/2ton 2wd...converting to 4x4 1967 Suburban 1/2ton 2wd My Girlfriends Projects 1985 Chevy Suburban 3/4ton 4x4 with 6.2L diesel, 4" lift, converted to TH-400, Warn Premium manual hubs, & Wildcat 315/75/R16 tires. (daily driver) 1978 Camaro Type LT with a Marine 350 & vortec heads, Rochester Carb, & roller cam 1978 Camaro Z28

03-15-2012, 01:10 AM	#2
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,252	Re: Newer Bellhousing...will it bolt up? That bellhousing can work, but you will have to remove the bellhousing crossmember, and add a rear trans mount. Which a SM420 does not have provisions for. You would also need an adapter ring for the front bearing retainer, as the '68 and newer bellhousings have a larger hole for the larger bearing retainer. If you need the hydraulic bellhousing, it would be easier to switch to the SM465. __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE

03-15-2012, 02:49 AM	#3
rcbildr Registered User Join Date: Sep 2000 Location: Gold Bar, WA Posts: 1,216	Re: Newer Bellhousing...will it bolt up? Sorry, I should have included more details. I plan on using an SM-465/NP-203 combo as part of the project. I have a hydraulic clutch bellhousing for the SM-465. I was hoping to use the stock 63 crossmember, but it sounds like it won't. Is there a way to make it work? I was hoping to avoid drilling out frame rivets. Thanks!!! __________________ My Projects: 1960 GMC 1/2ton with 305 V6 (daily driver) 1963 Chevy 1/2ton 2wd...converting to 4x4 1967 Suburban 1/2ton 2wd My Girlfriends Projects 1985 Chevy Suburban 3/4ton 4x4 with 6.2L diesel, 4" lift, converted to TH-400, Warn Premium manual hubs, & Wildcat 315/75/R16 tires. (daily driver) 1978 Camaro Type LT with a Marine 350 & vortec heads, Rochester Carb, & roller cam 1978 Camaro Z28

03-15-2012, 08:33 PM	#4
rcbildr Registered User Join Date: Sep 2000 Location: Gold Bar, WA Posts: 1,216	Re: Newer Bellhousing...will it bolt up? IT looks like I'm going to have to remove the stock crossmember anyways. I did some more looking at the truck and noticed part of it was cut to clear the rear shackles for the leaf springs. __________________ My Projects: 1960 GMC 1/2ton with 305 V6 (daily driver) 1963 Chevy 1/2ton 2wd...converting to 4x4 1967 Suburban 1/2ton 2wd My Girlfriends Projects 1985 Chevy Suburban 3/4ton 4x4 with 6.2L diesel, 4" lift, converted to TH-400, Warn Premium manual hubs, & Wildcat 315/75/R16 tires. (daily driver) 1978 Camaro Type LT with a Marine 350 & vortec heads, Rochester Carb, & roller cam 1978 Camaro Z28

03-16-2012, 12:13 AM	#5
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,252	Re: Newer Bellhousing...will it bolt up? The original bellhousing crossmember will likely hit the bottom of that bellhousing. Besides you really don't need it in there since you will have a crossmember under the transfer case adapter anyway. If you don't want to deal with the rivets, just cut it off flush with the frame flanges. __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE



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