Transmission mount cross member help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Putzer · 12-12-2018, 09:14 PM

Good evening all. Shown in the pictures is the ece trans mount. I have read multiple accounts where people have had the same setup as I do, lq4 w/ 4l80 and the holes line up. Seems like my trans is sitting back further than most.

Does anyone see issues with what I've got going on? Engine mounts etc.

Thanks!

72MARIO · 12-13-2018, 01:53 AM

Looks like you can slide your engine way back if you want to.

Putzer · 12-13-2018, 08:07 AM

Quote:

Originally Posted by 72MARIO

Looks like you can slide your engine way back if you want to.

I can slide it back but then it's even worse off. It needs to go forward about an inch and a half to line up with the last set of holes. If I were to push it backward, one hole would line up and then I'd have to drill a couple new holes. Not a big deal but since ive seen this done without having to drill new holes, i'm worried there's something I'm overlooking.

**mongocanfly** · 12-13-2018, 08:58 AM

Be allot easier to tell engine position if the cab cab was on..I'm assuming there's no movement left in the engine mounts to go forward...

Putzer · 12-13-2018, 09:34 AM

Quote:

Originally Posted by mongocanfly

Be allot easier to tell engine position if the cab cab was on..I'm assuming there's no movement left in the engine mounts to go forward...

unfortunately I sent the cab off to have replacement panels done. I have no welding experience, equipment or space. Yeah, the engine is maxed out forward.

**First c10** · 12-13-2018, 02:00 PM

I used the same trans mount but used the ECE motor mounts and it fit great but 1 hole. It was off about 3/8" so I just drilled the frame basically putting a slot and bolted it right in.
The best thing is to make sure your not going to hit the firewall or are to far away from the firewall. Best to have the motor positioned correctly in relation to the firewall and just drill the frame to bolt everything in. Hope this helps! Oh and my swap was a 6L80 trans

**First c10** · 12-13-2018, 02:05 PM

if you need to move motor/trans forward can you just swap motor mounts???

12-12-2018, 09:14 PM	#1
Putzer Registered User Join Date: Jun 2018 Location: Columbus Posts: 95	Transmission mount cross member help Good evening all. Shown in the pictures is the ece trans mount. I have read multiple accounts where people have had the same setup as I do, lq4 w/ 4l80 and the holes line up. Seems like my trans is sitting back further than most. Does anyone see issues with what I've got going on? Engine mounts etc. Thanks! Attached Images

12-13-2018, 01:53 AM	#2
72MARIO Registered User Join Date: Nov 2000 Location: Huntsville Ontario Canada Posts: 4,051	Re: Transmission mount cross member help Looks like you can slide your engine way back if you want to. __________________ 1968 Suburban numbers matching all original truck now equipped with 6.0/4L80 on Accuair http://67-72chevytrucks.com/vboard/s...d.php?t=625017 1967 C/20 6.0/4L80 Roofing Truck 1990 V2500 Suburban "Plow Truck" 2005 TAHOE DD

12-13-2018, 08:58 AM	#4
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,670	Re: Transmission mount cross member help Be allot easier to tell engine position if the cab cab was on..I'm assuming there's no movement left in the engine mounts to go forward... __________________ Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver

12-13-2018, 02:00 PM	#6
First c10 Registered User Join Date: Dec 2012 Location: Los Banos CA Posts: 2,705	Re: Transmission mount cross member help I used the same trans mount but used the ECE motor mounts and it fit great but 1 hole. It was off about 3/8" so I just drilled the frame basically putting a slot and bolted it right in. The best thing is to make sure your not going to hit the firewall or are to far away from the firewall. Best to have the motor positioned correctly in relation to the firewall and just drill the frame to bolt everything in. Hope this helps! Oh and my swap was a 6L80 trans __________________ 1956 Chevy Bel Air 2 door 1956 Chevy 210 4 Door 1970 K20 LWB project the Hulk build w/Supercharged 4.8L-ly2/4L60E HULK BUILD 1970 C10 Yellow/White Deluxe LWB w/ 5.3L-LC9/6L80E 1968 K10 LWB Dark green my son calls it "THE HULK Jr"HULK JR SOLD GO GO!!!

12-13-2018, 02:05 PM	#7
First c10 Registered User Join Date: Dec 2012 Location: Los Banos CA Posts: 2,705	Re: Transmission mount cross member help if you need to move motor/trans forward can you just swap motor mounts??? __________________ 1956 Chevy Bel Air 2 door 1956 Chevy 210 4 Door 1970 K20 LWB project the Hulk build w/Supercharged 4.8L-ly2/4L60E HULK BUILD 1970 C10 Yellow/White Deluxe LWB w/ 5.3L-LC9/6L80E 1968 K10 LWB Dark green my son calls it "THE HULK Jr"HULK JR SOLD GO GO!!!



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