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What is the ideal range and what is considered too cold and what's too hot? Obviously too hot isn't great but what issues are there if it's too cold?

I'm looking for an intake for a 1996 Vortec? V6. This one is in a boat so it's a Merc with a cast iron 2 barrel intake on it that has been cracked. I can only guess that this engine is a mercruiser 4.3L. I know nothing about these at all but it has 4 vertical bolts down either side. Will...

Can you expect a 10% increase in pressure across the board by changing to a 10% larger Boost Valve? Seems simple enough but I'm not 100% sure what the relationship between the TV position and the Boost Valve is. Simply put, a .500 valve has a 12.7% larger area than a .471 so would this increase...

I'm looking to machine the low/reverse housing to fit a thrust bearing. What is this bearing commonly found in and how hard is it to machine the parts? The problem I have is the end clearance with 2 copper washers and a 0.124" thrust washer is still just over 0.020". Doesn't this seems a lot...

I've got a 2nd hand servo but no instructions. The OEM one has the inner piston but this one doesn't, which I guess is typical, but how's it work? Can someone scan the instructions and email them to me? stew.mcleish@xtra.co.nz

Anyone know how Dave's going these days? I flicked him an email recently and haven't heard from him and it looks like he hasn't been on here for months.

I've just been researching what frictions to use in a trans rebuild (AOD) and have been told on more than 1 occasion not to use Red Metallic's as they wear and fill the oil with metal. This in turn destroys the VB in time. I can't see this being a good thing. One of the frictions I've come...

Trying to find a supplier on the West Coast, or somewhere handy, that can supply gears and install kits. I've been given two names by Richmond but I'm having no luck with their respective web sites. The Gear Shop and Jack Chrisman Ent. Any ideas?

I've bought a TH400 rebuild kit that includes extra frictions and steels but I'm having a s**t of a time trying to get anything to fit. The vendor isn't that helpful, when he finally replies to emails, (he usually doesn't!) so I'm throwing this out to you guys for some advise. I've been...

There are many transmission experts that provide advise, help and parts on this forum for GM units but this one is the "F" word. Forgive me for asking this but I have a friend that has an AOD behind his 351C and it needs a few modifications to make it perform better. Can any one here help?

The information on this site about rebuilding TH2004R's is both extensive and contradictory. How anyone can reliably rebuild one with confidence is remarkable. Just trying to understand what parts are sensibly required for a given power level is a mission in itself! My question is simply...

This might be a stupid question but has anyone tried to modify one of these to work a 4 speed auto?

I'm looking to build up a TH2004R and have found a rebuildable core. This is the only one I've found so far. It's 300 bucks. The Tag is: 091-2T82AA1200 From this I'm guessing it's an 82 model out of a Caddy. Is this a good starting point for a rebuild (behind a 430hp 355 SBC) or should...

I'm looking to rebuild a TH400 for a client. It's going behind a tunnel rammed 427 so I want a better than stock kit. As I need this "kit" shipped to New Zealand I'm looking for a vendor that can supply me a full kit that includes all the usual plus bushes, thrust washers, modulator, etc...