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#1 |
Registered User
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Location: Warrington, PA
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bell housing?
I recently purchased a 3 speed tranny with a 4 5/8" bearing support. My old bell housing has a larger hole...about 5 1/8". Bolt holes line up fine, but bearing support hole is too large for new tranny. I think I need a new bell housing? If so, any insight on where i can purchase a 4 5/8" bell housing that will accomadate a 11" clutch, or could I still use the old bell housing?
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![]() Last edited by rick0312; 05-20-2008 at 06:22 AM. |
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#2 |
Registered User
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Location: Warrington, PA
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Re: bell housing?
can i use my original bellhousing even though there is some space between bearing suuport and bellhousing?
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#3 |
The Older Generation
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Location: Montezuma, Iowa
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Re: bell housing?
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I think you could if you are not going to be racing it or beating it too bad. I think I would try and find a machinist to make me a press fit adapter ring to go into the bell housing. LockDoc
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Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
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#4 |
Registered User
Join Date: Jun 2007
Location: oregon
Posts: 1,069
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Re: bell housing?
It would be cheaper just to find the right bell housing........don't......I repeat don't run with that oversize bore..............your front bearing in the trans will be destroyed in short order and then you will wish you found the right bell. They should be easy to find.
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69 K-20 cloned to a 67 with front clip and some other stuff. 383 .040 over Crane roller cam lifters and rockers ,1.6 intake ratio, Open chamber heads, 9.5-1 compression ratio, 2.02 intake valves , Edelbrock performer Air Gap manifold Carter AFB performer 750cfm, MSD ignition, SM465 NP205 4.10 gears: ![]() |
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#5 |
Registered User
Join Date: Sep 2006
Location: SE Virginia
Posts: 158
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Re: bell housing?
Have you tried to swap the bearing supports?
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#6 |
Senior Member
![]() Join Date: Jul 2004
Location: Estherville, Iowa
Posts: 3,371
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Re: bell housing?
Assuming you want to keep the cast bellhousing for the side mounts, I think 1967 and earller had the smaller hole. You can purchase (i think) an adaptor ring or have one made, do not run with out the correct setup here, the tranny bolts will not center the tranny good enough to the clutch and will cause problems.
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1968 C10 307 3spd Long Fleet ------ http://67-72chevytrucks.com/vboard/s...d.php?t=201103 1970 C10 305 Super T10 Long Fleet --- http://67-72chevytrucks.com/vboard/s...d.php?t=202285 1971 C20 383 TH350 Dana Posi ----- http://67-72chevytrucks.com/vboard/s...d.php?t=206894 2001 GMC Sierra 1500 C3 6.0 |
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#7 |
Registered User
Join Date: Jun 2007
Location: oregon
Posts: 1,069
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Re: bell housing?
The bearing supports correspond to the transmission input bearing that they belong on. Don't swap this out or youi open a whole nuther can a worms. Don't fool around here just get the right bell
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69 K-20 cloned to a 67 with front clip and some other stuff. 383 .040 over Crane roller cam lifters and rockers ,1.6 intake ratio, Open chamber heads, 9.5-1 compression ratio, 2.02 intake valves , Edelbrock performer Air Gap manifold Carter AFB performer 750cfm, MSD ignition, SM465 NP205 4.10 gears: ![]() |
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#8 | |
Registered User
Join Date: Jun 2007
Location: oregon
Posts: 1,069
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Re: bell housing?
Quote:
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69 K-20 cloned to a 67 with front clip and some other stuff. 383 .040 over Crane roller cam lifters and rockers ,1.6 intake ratio, Open chamber heads, 9.5-1 compression ratio, 2.02 intake valves , Edelbrock performer Air Gap manifold Carter AFB performer 750cfm, MSD ignition, SM465 NP205 4.10 gears: ![]() |
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#9 |
Registered User
Join Date: Jun 2007
Location: oregon
Posts: 1,069
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Re: bell housing?
I must be missing something here...................but isn't that first picture the correct bellhousing? Why not use it?
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69 K-20 cloned to a 67 with front clip and some other stuff. 383 .040 over Crane roller cam lifters and rockers ,1.6 intake ratio, Open chamber heads, 9.5-1 compression ratio, 2.02 intake valves , Edelbrock performer Air Gap manifold Carter AFB performer 750cfm, MSD ignition, SM465 NP205 4.10 gears: ![]() |
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#10 |
Registered User
Join Date: Oct 2005
Location: Overland Park, Ks.
Posts: 5,217
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Re: bell housing?
The 435 4 speed came out in 68 & used the larger hole. An older bell housing or a 3 speed will fit providing it,s for the large flywheel.
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#11 |
Registered User
![]() Join Date: Jan 2006
Location: Warrington, PA
Posts: 403
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Re: bell housing?
I have two trannys and one bell. the rebuilt tranny has the smaller support bearing. the older tranny fits perfect, but needs a rebuild. was hoping to reuse my old bell, but it looks like I will be seraching for the small bore size.
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#12 |
Registered User
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Location: Warrington, PA
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Re: bell housing?
So if I am understanding corectly I need a pre- 67 bell housing, with the side mounts. I am using an 11" clutch, so will any pre 67 bell that cam off of a sbc V8 be ok for the clutch size i am using?
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#13 |
Senior Member
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Location: Estherville, Iowa
Posts: 3,371
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Re: bell housing?
I think the break is 67-68, so look for a 67 or older, all the 6 banger housing I have seen are the same as small block too.
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1968 C10 307 3spd Long Fleet ------ http://67-72chevytrucks.com/vboard/s...d.php?t=201103 1970 C10 305 Super T10 Long Fleet --- http://67-72chevytrucks.com/vboard/s...d.php?t=202285 1971 C20 383 TH350 Dana Posi ----- http://67-72chevytrucks.com/vboard/s...d.php?t=206894 2001 GMC Sierra 1500 C3 6.0 |
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#14 |
Registered User
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Location: Warrington, PA
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Re: bell housing?
thanks!
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