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Cardinal Grammeter

Member Since 18 Mar 2014
Offline Last Active Jan 07 2018 05:41 PM
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Topics I've Started

1974 620 Ultra Quiet Exhaust: Adapt 720? or?

17 December 2017 - 01:13 AM

I do interstate driving over 4500 rpm and do not want any kind of exhaust drone - seems like I have an OE muffler on mine an it gives off only the faintest hum at that speed.

 

Even sticking with OEM style mufflers is not a guarantee.  For instance, the Suzuki Swift variants Walker SoundFX is terrible - very noisy mufflers.  Only the Walker stainless steel mufflers are quiet.

 

I was looking at Ranger and S10 exhaust parts and it looks like both are RHS systems (620 is LHS.)

 

The 720 might be good for the muffler/tailpipe?  Bosal has a welded 283-903 for about $110 shipped from RA.  (muffler has a front flange, but that could be cut off or welded.

05838380.jpg

 

 

I don't want to go to a muffler shop and get something bent because I would be really

pissed for a $300 job for muffler/tailpipe that was loud - which is what most people want. 

I could weld up a tailpipe but that leaves the muffler.

 

So that leaves me sourcing a muffler.

 

I looked at a lot of threads and one referenced a quiet muffler choice for a King Cab.  It didn't have much in the way of responses.

 

NOTE on PIPE SIZES:  The S10 and Rangers use a 2.25 exhaust and 2.0 tailpipe for their 2.0 liter engines.  I'm guessing they are 100 hp, so the 70 hp L18 could manage with a 2.0 and 1.75/1.50 pipe sizes.

 

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EDIT:  I'm guessing 520/521 exhaust might be a direct fit more or less.  Yes, older, but past discoveries would apply.

 

NOTE:  It doesn't seem like there is any attempts to find modern parts that will fit w/minor modification.  Everyone is getting loud / performance stuff either DIY or from muffler shops. 

 

I admit working on exhaust is a RPITA and virtually impossible if you don't have the tools/equipment.  I have all the tools/welders but not the lift.  I've done fabbed exhaust working off jack stands and I just don't have the stomach for it anymore.  But it backed into a corner, I guess I'll have to submit...


74 620 Throttle Cable wore thru sheath - Options?

29 September 2017 - 11:26 AM

18200-B5500

 

Looks like NLA.

 

Finding used or NOS sucks because truck is down.

 

Any clever sheath repairs?  (Would be temp since the cable is frayed where previous monkeys looped it though a MonoJet linkage with a plastic tie...)

 

 

 

 


1980 720 4-cyl L20B 5-speed pics

29 August 2017 - 04:56 PM

Here are some pics for reference purposes.  I cannot vouch that this transmission is what is stated in the title - I bought on the word of Hooper's Auto Salvage in NC.

 

http://imgur.com/a/Sn0EJ

 


4-spd 5-spd Shifter arm interchangeability (bot 5spd w/o arm)

20 August 2017 - 05:42 AM

I just got a 1980 720 L29B 2wd 5-speed w/o a shifter arm.

 

Is there any chance the shifter from my 4 speed will fit?  (or am I screwed?) 

 

Thanks

Tom


Can't find my content older than July 2016

13 July 2017 - 06:41 PM

I wanted to close out an open problem thread that I just solved.