manual trans cross member? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

sixtysevengmc · 01-20-2007, 05:30 PM

I need to know if the manual trans cross members are the same for three and four speeds?
I've found a x member in a 67 3/4 ton I6 four speed(granny) and want to know if it will work with my V8 bell-housing.I was told that the three speed trucks didn't use a x member but had plates that bolted between the frame and the bell-housing.

thanks

jsbgump · 01-20-2007, 05:55 PM

I believe they are

Troy-Built · 01-20-2007, 06:46 PM

The cross member is the same but the three speed bellhousing pilot hole is smaller than 4 speed one.

crazy longhorn · 01-20-2007, 09:19 PM

The crossmember is the same for 3 or 4 spd....if they are both a 6cyl, or both a sb v8, or both a BB v8! There are 3 different crossmembers, & they are all placed differently (frame location) depending on the engine. As far as the bell....the CENTER HOLE SIZE is a yr specific deal. 67 + older are a 4 11/16 " hole(does not matter 3 or 4 spd), wheras the 68 up are a 5 1/8" hole(again 3 or 4 spd does not matter)......

L

sixtysevengmc · 01-21-2007, 01:24 PM

mmmmmmmmmmmkay..............
thanks

01-20-2007, 05:30 PM	#1
sixtysevengmc village idiot Join Date: Oct 2006 Location: Barbourville,KY Posts: 176	manual trans cross member? I need to know if the manual trans cross members are the same for three and four speeds? I've found a x member in a 67 3/4 ton I6 four speed(granny) and want to know if it will work with my V8 bell-housing.I was told that the three speed trucks didn't use a x member but had plates that bolted between the frame and the bell-housing. thanks

01-20-2007, 05:55 PM	#2
jsbgump Gone Fishing Join Date: Aug 2005 Location: Fort Worth, Texas 76135 Posts: 12,361	Re: manual trans cross member? I believe they are __________________ 68 Chevy Short Fleetside LSX Swap Under Way 3.73 posi 2.5/4 drop Frame of resto has been started 2022 Hyundai Tucson Limited 2019 Chevy Traverse Redline Edition Wifes Ride Build Thread http://67-72chevytrucks.com/vboard/s...=1#post3483616

01-20-2007, 06:46 PM	#3
Troy-Built Registered User Join Date: Mar 2003 Location: Perrysville Indiana Posts: 258	Re: manual trans cross member? The cross member is the same but the three speed bellhousing pilot hole is smaller than 4 speed one. __________________ 69 Chevelle SS 375/396 TKO 600 71 Suburban 3/4 4x4 402 5-speed (project) 68 chevy C10 shortbed 327 5-speed (project) 72 Blazer 4x4 400 4-speed (wifes project) Numerous 67-72 parts trucks

01-20-2007, 09:19 PM	#4
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,402	Re: manual trans cross member? The crossmember is the same for 3 or 4 spd....if they are both a 6cyl, or both a sb v8, or both a BB v8! There are 3 different crossmembers, & they are all placed differently (frame location) depending on the engine. As far as the bell....the CENTER HOLE SIZE is a yr specific deal. 67 + older are a 4 11/16 " hole(does not matter 3 or 4 spd), wheras the 68 up are a 5 1/8" hole(again 3 or 4 spd does not matter)...... L __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....

01-21-2007, 01:24 PM	#5
sixtysevengmc village idiot Join Date: Oct 2006 Location: Barbourville,KY Posts: 176	Re: manual trans cross member? mmmmmmmmmmmkay.............. thanks



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