Author Topic: LWB to SWB Conversion  (Read 202881 times)

Offline cubicdollars

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Re: LWB to SWB Conversion
« Reply #75 on: March 08, 2008, 06:40:05 AM »
Your truck is looking great!!!
1977 Stepside,F2 Procharged BBC 505
1984 Buick T Type Regal, LS Swapped

Offline DnStClr

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Re: LWB to SWB Conversion
« Reply #76 on: March 08, 2008, 11:44:19 AM »
Yes it is!  Man that's a nice ride. It reminds me of the dark purple one you used to have! I can't believe how much work you've done in just a few weeks.
Don
87 Chevy Silverado

Offline VileZambonie

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Re: LWB to SWB Conversion
« Reply #77 on: March 09, 2008, 06:50:16 PM »
Thanks Don!

K I got my new driveshaft but the U-joints didn't match up to the old pinion Yoke on the 12 Bolt rear end. So I had to get a conversion U-joint, 10 bolt pinion yoke, and pinion seal to match. I decided to take a pic with part #'s since I know other people seem to run into this a lot.





After I got it all in I took it out for a test rip.... I angered some old people  ;D

Then I washed it off... Here it is with the shortbed in place.









And a quick vid

« Last Edit: July 25, 2017, 03:42:24 PM by VileZambonie »
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74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline Bowtie Bomber

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Re: LWB to SWB Conversion
« Reply #78 on: March 09, 2008, 07:01:24 PM »
That baby sounds MEAN!

I know you probably get this a lot, but what muffler are you using?
My truck is my flying fortress, the road is my sky, and Toyota's are the enemy bunkers that need a busting.

Offline VileZambonie

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Re: LWB to SWB Conversion
« Reply #79 on: March 09, 2008, 07:41:58 PM »
Thanks. It sounds a lot better in real life than on a digital camera video... 3" Flowmasters
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74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline autorepr

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Re: LWB to SWB Conversion
« Reply #80 on: March 10, 2008, 07:03:02 AM »
SUPER SWEEEEEET RIDE!!!! I'm guessing there's not an HEI in that old girl?  Nice job man! Did you say what your going to use as a bumper/ rollpan yet? Tail lights?
UH-OH  I'M GONNA NEED A BIGGER BANDAID!!!!!

Offline JJSZABO

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Re: LWB to SWB Conversion
« Reply #81 on: March 10, 2008, 08:06:22 AM »
Looking Good!  How much trouble was it putting the bed together?  You used all   aftermarket, right?
Jeff

86 Chevy C-10
350, TH400
Ex father and son project (son lost interest)

Son regained interest when truck was almost completed

Offline VileZambonie

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Re: LWB to SWB Conversion
« Reply #82 on: March 10, 2008, 08:20:53 AM »
I have decided I am going to fill the tail lights and smooth the gate. I am going with a 4 louvered tailgate with small billet lights in the pan. I am going to remove the cab light and drip rails and smoothing the cab seam. I still haven't made up my mind about the locks and handles. I am keeping the same style mirrors on there now. I'll be ditching the 454 fender emblems. I don't like the front roll pans on 73-80 noses so I am going to keep a chrome bumper on the front. So please feel free to throw some ideas my way if you like.

No HEI in this truck lol  :D
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74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline HAULIN IT

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Re: LWB to SWB Conversion
« Reply #83 on: March 10, 2008, 08:40:45 AM »
Vile, I don't understand the rear yoke problem. Did they make the driveshaft with the wrong end? Is the u-joint now bigger/smaller than before or just the cross? I changed my 10 bolt for a 12 bolt about 8 years ago & remember getting a different u-joint, why weren't you able to just change the joint? Thanks, Lorne

Offline VileZambonie

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Re: LWB to SWB Conversion
« Reply #84 on: March 10, 2008, 10:10:13 AM »
Because the 12 bolt actually has a smaller u-joint cap than the 10 bolt cap. The driveshaft being a big beefer has the 1 ton u joint caps. They didn't make a conversion joint that went from the large cap to the small cap. That's why I swapped yokes and pinion seals so I could use the 21153 conversion joint.
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74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline HAULIN IT

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Re: LWB to SWB Conversion
« Reply #85 on: March 10, 2008, 11:04:07 AM »
Ok, I see, you planed to use a bigger joint (1-ton)when you had the shaft made, but really were going down 2 sizes on the caps to match up with the 12 bolt, correct?  I didn't remember why the different joint, but remember I had bought a new one before hand thinking I would change it while it was out & having to go get a different one to finish the job. So really I could have just changed yokes (& seal) & kept the bigger caps, is this correct? I've always questioned the strength of the  necked down spline area of those shafts, do you think it is as strong as a regular slide in yoke driveshaft? Thanks, One more thing for the memory bank, Lorne   

Offline Captkaos

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Re: LWB to SWB Conversion
« Reply #86 on: March 10, 2008, 11:21:28 AM »
Personal experience, but I wouldn't shave the handles if you plan to drive it a lot, and if you are keeping the mirrors, you might as well keep the handles and locks to.

Offline SUX2BU99

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Re: LWB to SWB Conversion
« Reply #87 on: March 10, 2008, 11:33:09 AM »
Awesome job, Vile  8) So what part of it so far was the most difficult? Anything give you fits or headaches? I know you already said not one bolt hole lined up with the new bed body pieces. That'd be enough to drive me crazy, but I guess when you go into figuring everything you have to do is going to require some custom work, then it's not so bad when you run into problems.

As for tail treatment, a long thin continuous slot in the rear pan would look nice with smoked plexi for a lens but I guess to be legal you need some kind of DOT-approved reflector and lens. Caddy LED tails turned sideways? They might have an arc to them though, but frenching them could look cool.
85 Chevy Silverado C10 short, wide, yellow, 2wd. Lowered, 60-over 350 with Dart Iron Eagle heads and Comp Cams XE268 cam, TH350 w/ shift kit, 3.40 Gov-lok 12 bolt.

Offline JRConnieK10

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Re: LWB to SWB Conversion
« Reply #88 on: March 10, 2008, 11:48:42 AM »
Vile, that looks great I like the idea of the smooth tailgate I did that to mine it has went from plain to puting in the alum. trim piece to ton light across the back to now fliped handle and smoothed. I guess over the years I've changed it several times, kinda like the front round tube grille to stock, then square tube to billit to rv conversion thats one thing I like about these trucks very versatile.
'85 K10 LWB 350/SM465
BUILT NOT BOUGHT

Offline Bowtie Bomber

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Re: LWB to SWB Conversion
« Reply #89 on: March 10, 2008, 12:05:41 PM »
I would put a rear roll pan on my truck as well, but I'm afraid right after I do that I'll get rear ended by somebody.  :(

Maybe if I had a SWB truck I would do it. I think it would look great on your truck Vile.
My truck is my flying fortress, the road is my sky, and Toyota's are the enemy bunkers that need a busting.