700R4 Crossmember: Will this one work? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

KrazyKevin · 01-07-2010, 11:27 AM

Got my frame painted and while the cab is off I'm wanting to install a new crossmember for the 700r4. My truck had a old 3 speed manual on the column. I found this one:

http://www.resto-modtechnology.com/s...%7C-GMC/Detail

If this will work, whats the easiest way to get this thing mounted properly? I can see myself mounting this thing and it being off 1/2" or so and really giving me he77!!! I have a 72', will there already be holes drilled?

I'm off to do more searching.

Thanks

Wrenchbender Ret · 01-07-2010, 01:26 PM

That looks like a nice piece. I'd say you will have to have the engine & tran. setting in the frame to get it lined up & then drill the holes. I supose you have removed the crossmember that went under the bell housing.

cdowns · 01-07-2010, 01:32 PM

putting engine and tranny in place would b best, you might b able to use existing mounting holes in the frame// yes the original bellhousing mount crossmember needs to go

i believe GMC paul's carries that type crossmember too,so check with him on pricing

**425HP409** · 01-07-2010, 04:04 PM

I installed a 700R4 in my 68 that was a Powerglide truck and just moved the existing cross member and drilled the appropriate holes. The one you showed looks good, or maybe you could find an original from someone on the forum.

BossHogg69 · 01-07-2010, 04:17 PM

That's a nice looking piece - much beefier than the tubular ones you see that only bolt to the bottom of the frame. My '69 started with a powerglide, then a TH400, now a Tremec TKO - and I used the original crossmember. Lots of holes drilled! I would do a lot of measuring so you save yourself the trouble of having to re-drill holes, especially since you'll be drilling holes in the top and bottom of the frame.

KrazyKevin · 01-07-2010, 04:25 PM

Thanks so much for the replies. Since the engine is not rebuilt, nor the 700r4 purchased, sounds like I might need to wait. Just seemed like something I needed to do now before the cab went on. But, I guess I'd rather wait then to have holes all in the frame.

**Thealien** · 01-07-2010, 04:34 PM

If you want you can use this
Website and use the transmission mount measurement differences to figure where the crossmember needs to go. Personally I would wait and mark the holes with everything in place.

**Clyde65** · 01-07-2010, 04:47 PM

I have one just like that, works well. I also have one that i ordered cuz I didnt pay attention to what I already had let me know if you would want to purchase it, I will be generous with the cost.

01-07-2010, 11:27 AM	#1
KrazyKevin What have I gotten into Join Date: Oct 2008 Location: Liberty, TX Posts: 123	700R4 Crossmember: Will this one work? Got my frame painted and while the cab is off I'm wanting to install a new crossmember for the 700r4. My truck had a old 3 speed manual on the column. I found this one: http://www.resto-modtechnology.com/s...%7C-GMC/Detail If this will work, whats the easiest way to get this thing mounted properly? I can see myself mounting this thing and it being off 1/2" or so and really giving me he77!!! I have a 72', will there already be holes drilled? I'm off to do more searching. Thanks __________________ 1972 Chevy SWB Fleetside Project BumbleBee

01-07-2010, 01:26 PM	#2
Wrenchbender Ret Registered User Join Date: Oct 2005 Location: Overland Park, Ks. Posts: 5,229	Re: 700R4 Crossmember: Will this one work? That looks like a nice piece. I'd say you will have to have the engine & tran. setting in the frame to get it lined up & then drill the holes. I supose you have removed the crossmember that went under the bell housing.

01-07-2010, 01:32 PM	#3
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: 700R4 Crossmember: Will this one work? putting engine and tranny in place would b best, you might b able to use existing mounting holes in the frame// yes the original bellhousing mount crossmember needs to go i believe GMC paul's carries that type crossmember too,so check with him on pricing __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

01-07-2010, 04:04 PM	#4
425HP409 425hp409 Join Date: Oct 2008 Location: Prosper Texas Posts: 841	Re: 700R4 Crossmember: Will this one work? I installed a 700R4 in my 68 that was a Powerglide truck and just moved the existing cross member and drilled the appropriate holes. The one you showed looks good, or maybe you could find an original from someone on the forum. __________________ Charles 68 SWB, Dad bought new, now 396 & factory ac 64 Impala SS, 409 425HP, 4 speed AC 64 Bel Air Wagon, 400 Small Block 57 Bel Air all original 283 w/Factory Air 77 GMC Sprint, 454/425HP 67 Olds 442, all original 90 ZR1 Corvette

01-07-2010, 04:17 PM	#5
BossHogg69 motor exploder Join Date: Mar 2009 Location: Pittsburgh, PA Posts: 2,346	Re: 700R4 Crossmember: Will this one work? That's a nice looking piece - much beefier than the tubular ones you see that only bolt to the bottom of the frame. My '69 started with a powerglide, then a TH400, now a Tremec TKO - and I used the original crossmember. Lots of holes drilled! I would do a lot of measuring so you save yourself the trouble of having to re-drill holes, especially since you'll be drilling holes in the top and bottom of the frame. __________________ Adam 1969 Chevy CST/10 stepside, DART Big M/TREMEC Magnum Extreme/3.73's w/Detroit Truetrac 1965 Chevy Bel Air Wagon (daily driver), 327/TH350,10 bolt w/3.08's 1961 Chevy Bel Air Sport Coupe, ZZ454/M21/9" rear w/3.50's & Detroit Truetrac 2005 GMC 1500 ccsb 2wd, 6.0L/4L65e/3.73 G80 2006 GMC 2500HD ccsb 4x4, DMax LBZ/Allison 6spd/4.56's w/Detroit TrueTrac Use the SEARCH function on this forum - it is your friend!!

01-07-2010, 04:25 PM	#6
KrazyKevin What have I gotten into Join Date: Oct 2008 Location: Liberty, TX Posts: 123	Re: 700R4 Crossmember: Will this one work? Thanks so much for the replies. Since the engine is not rebuilt, nor the 700r4 purchased, sounds like I might need to wait. Just seemed like something I needed to do now before the cab went on. But, I guess I'd rather wait then to have holes all in the frame. __________________ 1972 Chevy SWB Fleetside Project BumbleBee

01-07-2010, 04:34 PM	#7
Thealien Senior Member Join Date: Jun 2007 Location: Pine Ridge Florida Posts: 4,135	Re: 700R4 Crossmember: Will this one work? If you want you can use this Website and use the transmission mount measurement differences to figure where the crossmember needs to go. Personally I would wait and mark the holes with everything in place. __________________ Click on my Not really a build thread, yet NOT SO RUST FREE RUST FREE BLAZER LS ENGINE SWAP INFORMATION THREAD BOLT RESTORATIONS 4l60 to an NP205

01-07-2010, 04:47 PM	#8
Clyde65 1965 Chevy C10, 2005 4.8L/4l60 Join Date: Aug 2004 Location: DFW Texas Posts: 8,546	Re: 700R4 Crossmember: Will this one work? I have one just like that, works well. I also have one that i ordered cuz I didnt pay attention to what I already had let me know if you would want to purchase it, I will be generous with the cost. __________________ Clyde65 Rebuild of Clyde http://67-72chevytrucks.com/vboard/s...84#post8338184 69 Aristocrat Lo Liner build http://67-72chevytrucks.com/vboard/s...84#post7561684 *support our troops!*



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