Which cross member for a 4L65E - The 1947 - Present Chevrolet & GMC Truck Message Board Network

javelinmania · 11-03-2015, 04:21 PM

I plan to put in a 4L65E next summer. Which cross member will I need? Also, the truck is a low hump - will the floor have to be cut for this to fit?

lutronjim · 11-03-2015, 06:39 PM

See http://www.brphotrods.com/mm5/mercha...gory_Code=CNV9.

Pricee but has correct pinon angle

javelinmania · 11-03-2015, 11:47 PM

Ouch - I will check to see if they sell just the transmission cross member without the motor mounts.

MARKDTN · 11-04-2015, 10:31 AM

Can't you just slide the one you have back and redrill the frame?

javelinmania · 11-04-2015, 10:59 AM

If that will work it saves money. Currently I have a manual, but I have an automatic cross member - though I don't know if there are differences in them and if so, I don't know which one I have.

**WIDESIDE72** · 11-04-2015, 04:00 PM

I have installed several 700r4's into 71 and 72 chevy trucks. I always just moved the stock auto crossmember back. Not sure on the 4L65e, but I can't imagine it would be too hard. For nearly $500, I would build my own!

Kennuck · 11-04-2015, 08:03 PM

I used the CPP cross member on mine. I didn't have an auto cross member as I was converting from a 3OTT. It will fit fine with your low hump cab.

11-03-2015, 04:21 PM	#1
javelinmania Registered User Join Date: Sep 2014 Location: Lexington, SC Posts: 127	Which cross member for a 4L65E I plan to put in a 4L65E next summer. Which cross member will I need? Also, the truck is a low hump - will the floor have to be cut for this to fit?

11-03-2015, 06:39 PM	#2
lutronjim Registered User Join Date: Dec 2013 Location: Dunwoody,Ga Posts: 443	Re: Which cross member for a 4L65E See http://www.brphotrods.com/mm5/mercha...gory_Code=CNV9. Pricee but has correct pinon angle

11-03-2015, 11:47 PM	#3
javelinmania Registered User Join Date: Sep 2014 Location: Lexington, SC Posts: 127	Re: Which cross member for a 4L65E Ouch - I will check to see if they sell just the transmission cross member without the motor mounts.

11-04-2015, 10:31 AM	#4
MARKDTN Registered User Join Date: Jan 2011 Location: Chattanooga, TN Posts: 2,165	Re: Which cross member for a 4L65E Can't you just slide the one you have back and redrill the frame? __________________ '83 K20-TPI '73 C10 '79 C10-ex-diesel(SOLD) '07 Tahoe(Son driving) '14 Suburban-DD '71 C10-current project

11-04-2015, 10:59 AM	#5
javelinmania Registered User Join Date: Sep 2014 Location: Lexington, SC Posts: 127	Re: Which cross member for a 4L65E If that will work it saves money. Currently I have a manual, but I have an automatic cross member - though I don't know if there are differences in them and if so, I don't know which one I have.

11-04-2015, 04:00 PM	#6
WIDESIDE72 Senior Member Join Date: Aug 2008 Location: Cedar Park, Texas Posts: 7,500	Re: Which cross member for a 4L65E I have installed several 700r4's into 71 and 72 chevy trucks. I always just moved the stock auto crossmember back. Not sure on the 4L65e, but I can't imagine it would be too hard. For nearly $500, I would build my own!

11-04-2015, 08:03 PM	#7
Kennuck Registered User Join Date: Oct 2013 Location: Dresden, Ontario Posts: 647	Re: Which cross member for a 4L65E I used the CPP cross member on mine. I didn't have an auto cross member as I was converting from a 3OTT. It will fit fine with your low hump cab. __________________ 1970 Short Wide 5.3 4L60E BlackBear tune 3:73 gears, Boyd's Tank 2.5 / 4 drop 5 lug disc brakes Vintage Air 18x8 Ridlers 255/55 frt. 18x9.5 275/60 rear



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