The 1947 - Present Chevrolet & GMC Truck Message Board Network

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The 1947 - Present Chevrolet & GMC Truck Message Board Network (https://67-72chevytrucks.com/vboard/index.php)

- The 1988 - 1998 GMT400 Chevy & GMC Pickups Message Board (https://67-72chevytrucks.com/vboard/forumdisplay.php?f=12)

- - L86/8L90 Swap info (https://67-72chevytrucks.com/vboard/showthread.php?t=836417)

87chevy.com

08-27-2022 11:38 PM

Re: L86/8L9e0 Swap info

Quote:

Originally Posted by Hart_Rod (Post 9117183)

Thanks again for the info Clint!

On a different front, after spending 3 weeks trying different oil pans, I found youtube video that recommended using 2020-2022 truck pan (GM part# 12707243). It showed up this afternoon and fit like a glove!!!! Best of all, it was only $210 shipped and it came with all new bolts and a new oil filter!!!! WIN.

No prob. Curious what the oil pan lools like.. add a pic
Clint

Hart_Rod

08-28-2022 08:53 PM

Re: L86/8L9e0 Swap info

4 Attachment(s)

Quote:

Originally Posted by 87chevy.com (Post 9117697)

No prob. Curious what the oil pan lools like.. add a pic
Clint

Here you go.

Hart_Rod

11-15-2022 02:48 PM

Re: L86/8L90 Swap info

4 Attachment(s)

Getting close. Here are some updated pictures.

FamilyTruckster65

11-16-2022 09:54 PM

Re: L86/8L90 Swap info

So I have the B&M dipstick for the 8L90 and wouldn't you know it I came across this just days after I purchased the B&M kit.

https://www.ebay.com/itm/29533888647...Bk9SR7SqtrSQYQ

Possible options for you.

Hart_Rod

11-17-2022 11:25 AM

Re: L86/8L90 Swap info

Quote:

Originally Posted by FamilyTruckster65 (Post 9145474)

I sent them a message asking for pictures of it installed. Would like to know how it comes out over the engine. Thanks!

Hart_Rod

12-30-2022 12:16 PM

Re: L86/8L90 Swap info

It's alive!!!:

https://www.facebook.com/groups/7232...ment&ref=notif

Snarl95

01-08-2023 03:04 PM

Re: L86/8L90 Swap info

Are you using the original dash gauges?

Hart_Rod

01-09-2023 10:03 AM

Re: L86/8L90 Swap info

1 Attachment(s)

Quote:

Originally Posted by Snarl95 (Post 9164391)

Are you using the original dash gauges?

No, using Dakota Digital HDX gauges with OBDII module.

ls1nova71

01-09-2023 11:25 AM

Re: L86/8L90 Swap info

Saw this on FB, and it took me a minute to put together your name Robert rather than Rob, I'm slow sometimes....

Anyway, does the Speartech module make the DD cluster show all 8 gears?

Hart_Rod

01-09-2023 03:56 PM

Re: L86/8L90 Swap info

Quote:

Originally Posted by ls1nova71 (Post 9164634)

Saw this on FB, and it took me a minute to put together your name Robert rather than Rob, I'm slow sometimes....

Anyway, does the Speartech module make the DD cluster show all 8 gears?

Hey Brotha! How's it going? I'm using DDs BIM OBDII module, Speartech setup up the wiring harness, computer and the TUTD. It does show all the gears (I was driving when I snapped that picture), at least on the HDX/RTX gauge packages. In the gauge setup up you can even select different shift patterns....PRND321, PRNDSL... DD recommended I use PRNODSL. They also said the BIM "learns" the gears as you use it. Their word not mine, LOL. It's a really nice setup. Take care and let me know if you have any further questions.

Robert....:lol:

Hart_Rod

01-10-2023 10:22 AM

Re: L86/8L90 Swap info

2 Attachment(s)

Here's a picture of the gauge panel with the 8th gear showing. The second picture is the DD bluetooth app that show real time info from the gauge cluster.

87chevy.com

02-06-2023 04:28 PM

Re: L86/8L90 Swap info

Ive got one or 2 more cnc aluminum a/c pads for custom.hoses.. ill post picture tonight

Hart_Rod

08-14-2023 01:42 PM

Re: L86/8L90 Swap info

3 Attachment(s)

Finally finished up the project in June. Maiden voyage was back to its home in Dallas. 600+ miles, no issues and averaged 24 mpg! Here's a few finished pictures.

FamilyTruckster65

08-14-2023 08:54 PM

Re: L86/8L90 Swap info

Well done!

What did you end up doing for a transmission dip stick? Also what rear gears and tire size? Were you satisfied with the performance?

Palf70Step

08-14-2023 09:04 PM

Re: L86/8L90 Swap info

Looks great Rob

Hart_Rod

08-15-2023 08:49 AM

Re: L86/8L90 Swap info

Quote:

Originally Posted by Palf70Step (Post 9229859)

Looks great Rob

Thanks Bill!

Quote:

Originally Posted by FamilyTruckster65 (Post 9229857)

Well done!

What did you end up doing for a transmission dip stick? Also what rear gears and tire size? Were you satisfied with the performance?

There's a guy on Ebay that makes for the Camaro LTs but they work on truck engines. 3.42 gears, 28.5 tall tires, it performs quite well....:metal:

87chevy.com

08-17-2023 08:46 PM

Re: L86/8L90 Swap info

superb job! looks super clean!!

clint

Hart_Rod

08-18-2023 08:37 AM

Re: L86/8L90 Swap info

5 Attachment(s)

Quote:

Originally Posted by 87chevy.com (Post 9231050)

superb job! looks super clean!!

clint

Thanks Clint. Once that one was finished I started working on my 84 that I'm also doing a L86/8L90 swap in. I'm doing a few things different, but it will be basically the same setup.

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