76 Laguna progress

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Post by bigredlaguna on Wed Apr 29, 2020 11:41 am

Actually it was very smooth. No indication of a problem at all. The car just had an irritating exhaust noise due to a split muffler and an intermittent clinking noise that I attributed to a loose dust cover.
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Post by Limey SE on Wed Apr 29, 2020 12:27 pm

Wow with the Crack and missing bolts you would think it would, BUT good thing you wanted to upgrade motors or who know how much Longer it would have lasted

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Post by bigredlaguna on Wed Apr 29, 2020 1:58 pm

I have a buddy that rebuilds these things. He has plenty of cores so it isn't a problem getting a new transmission. He upgrades at least one of the clutch packs with an extra clutch and whatever shift quality I want for a VERY reasonable price.

The part that sucks for me is that the original trans had a dual pattern bellhousing. It just takes away part of the uniqueness of this generation of vehicle.
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Post by Limey SE on Wed Apr 29, 2020 8:22 pm

Very Nice thats a good friend to have, Maybe he has a dual pattern for you ??

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Post by bigredlaguna on Wed Apr 29, 2020 8:54 pm

He might, but unlikely that I would get one. He is a little bit of a hoarder for weird stuff like that. He might surprise me though, because unlike the typical hoarder, he will sell whatever you see that isn't already committed to someone for the right price.
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Post by Limey SE on Wed Apr 29, 2020 9:07 pm

Man I hope so Red would be cool to be at least be what was in there Or can yours even be fixed or too far of a break

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Post by bigredlaguna on Wed Apr 29, 2020 10:36 pm

If it broke anywhere else but the dowel pin hole, I would consider having someone weld it up. TH350's are just too common to worry about fixing a bellhousing.
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Post by MaliCrusier / Mitch on Mon May 04, 2020 12:21 am

If you can't keep the dual pattern then why not swap a 700r4? It's a really easy swap.
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Post by bigredlaguna on Mon May 04, 2020 9:43 am

I already have a 2200/2500 stall convertor for the th350, and I also have a pair of 2004r transmissions that I am going to upgrade the internals on. Even easier and I like the gear ratio spread better.
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Post by g3chevy on Mon May 04, 2020 12:10 pm

bigredlaguna wrote:I already have a 2200/2500 stall convertor for the th350, and I also have a pair of 2004r transmissions that I am going to upgrade the internals on. Even easier and I like the gear ratio spread better.

The 200 4-R is the way to go. I did this swap on my 76 Laguna back in the early 90's when I had no idea what I was doing. Even then it bolted right in with minor mods to make everything hook up properly. If i remember correctly I had to massage the cooling lines a bit to get them connected and had to grind out the holes a little larger on the mounting bracket for the shift cable and had to move the crossmember back a few inches. Otherwise you can use your existing driveshaft without and mods which is a big plus. The most important thing is getting the TV cable adjusted properly so the trans doesn't burn up. But when these are built properly they can withstand 500+ horsepower. About to do this swap for my 75 Laguna and then hopefully do the Power Tour next year.

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Post by thatfnthing on Mon May 04, 2020 12:59 pm

X2 on all of that. I love mine. The biggest issue was grinding a new detent plate for the shifter for 7 positions instead of 6.
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