J Truck Rear Window Sizes, Two Different "Big Windows"?

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Maddening
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J Truck Rear Window Sizes, Two Different "Big Windows"?

Postby Maddening » Thu Sep 20, 2018 12:32 am

I have a rear slider for my '77 J10 that my installer refuses to install, saying it is going to fall out if he puts it in... It is the "TSW1700T - CRL Duo-Vent Four Panel Slider with Dark Gray Glass for 1967-1988 Jeep J10 and J20 Cab" made by CR Laurence, I got it from Amazon: http://a.co/d/8tQrDnS

I think the problem really is the reproduction gasket that came from Team Grand Wagoneer is poorly made and way too big so when the installer put the gasket on the window there were inches of extra room! The installer got on his computer though and then said something about listings for big windows up to '74 and then '75 and up? I know of course the older small window is very different, but that ended in the mid 60's and there is no way to mistake that for a big window. I have never heard of two different "big windows" in the J trucks, I thought they were the same in all of them. I have also pretty much confirmed this with Todd at Jeepglass.com who know their stuff very well when it comes to Jeeps and windows.

The dimensions of the sliding window I got from Amazon exactly match what CR Laurence website says is the one for my application so I know I didn't get a misboxed one. "Width 53-1/4", Height 15-3/8" and it is supposed to fit into the trucks using the same as stock glass gasket (if you don't buy crappy repops). I think I might just have a gunshy installer. I told him to go for it anyway and pull the old window then we would for sure see, but he didn't want to touch it, I can't really blame him.

I just know it's gotta be that dang gasket is crap and too big, and scared the installer...

Anyone have any input?
1977 J10 - It's BLUE.
2017 JK Rubicon - It's GREEN

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Stuka
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Re: J Truck Rear Window Sizes, Two Different "Big Windows"?

Postby Stuka » Thu Sep 20, 2018 6:47 am

I have always assumed that there was only one big window. But, I have never broken out a tape measure and measured the differences. I don't have access to an older truck, but maybe somebody else here does and we can get some comparisons going.
1981 J10 AMC 258 with HEI and Weber 32/36 DGEV Carb, T176, NP208, D44/M23 with 4.56 gears and Detroit Locker, 6" lift, 33x12.50 Cooper STT's, BJ's Offroad Rear Dozer Bumper.
2017 JKU Rubicon Lifted
Pevious Jeeps: 1975 Cherokee, 2008 JK, 2005 KJ, 1989 XJ

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Maddening
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Re: J Truck Rear Window Sizes, Two Different "Big Windows"?

Postby Maddening » Sat Sep 22, 2018 2:08 pm

Thanks, I am pretty sure that is the case. I'll probably just end up going to another place instead of using my longtime glass guy that works for peanuts... :lol: I might just try it myself, just don't want to break the original rear window, but if I do it isn't a huge deal.

Has anyone else had any experience with these reproduction rear window gaskets from Team Grand Wagoneer? That seems like where the problem is, it's too big.
1977 J10 - It's BLUE.
2017 JK Rubicon - It's GREEN

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Stuka
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Re: J Truck Rear Window Sizes, Two Different "Big Windows"?

Postby Stuka » Sat Sep 22, 2018 8:49 pm

Weather stripping as a whole has not been great for FSJ's. It often does not fit well. Especially the door seals.
1981 J10 AMC 258 with HEI and Weber 32/36 DGEV Carb, T176, NP208, D44/M23 with 4.56 gears and Detroit Locker, 6" lift, 33x12.50 Cooper STT's, BJ's Offroad Rear Dozer Bumper.
2017 JKU Rubicon Lifted
Pevious Jeeps: 1975 Cherokee, 2008 JK, 2005 KJ, 1989 XJ

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1971J4000
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Re: J Truck Rear Window Sizes, Two Different "Big Windows"?

Postby 1971J4000 » Sat Sep 29, 2018 9:23 am

Stuka wrote:I have always assumed that there was only one big window. But, I have never broken out a tape measure and measured the differences. I don't have access to an older truck, but maybe somebody else here does and we can get some comparisons going.


Image


On my 71 Gladiator

As you see it installed and all measurements from outside

The rubber seal measured horizontally at the very bottom... end to end of rubber is 54 inches

The rubber seal measured horizontally all the way at the top ... end to end of rubber is 48 inches

The rubber seal measured vertically at each end of the window... top to bottom of rubber is 16 inches

The rubber seal measured vertically at center of the window... top to bottom of rubber is 16 1/2 inches

The Window frame measured horizontally at the very bottom... end to end of exposed frame is 52 1/2 inches

The Window frame measured horizontally at the top just before the curve... end to end of exposed frame is 47 1/2 inches

The Window frame measured vertically at each end of the window... top to bottom of exposed frame is 14 inches

The Window frame measured vertically at center of the window... top to bottom of exposed window frame is 14 1/2 inches

This truck originally had stationary glass. I found this window NOS a few years ago. It was made in the early 70s.

I used the original rubber seal so I can't help with a recommendation.

I have the original stationary glass in the box that this slider window came in. The dimensions of this slider window is marked on the box (I will take picture)... and I will get an exact measurement of the stationary glass and add them to this post.
1971 J4600 with Dauntless 350

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1971J4000
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Re: J Truck Rear Window Sizes, Two Different "Big Windows"?

Postby 1971J4000 » Tue Oct 02, 2018 12:53 pm

Not sure who this vendor is... but he does seem to indicate that the seals are different for some late model J Trucks...

Rear window seal fits Jeep J Series Trucks 67-88. This seal only fit the years stated. Does not fit the earlier or the tail end of the J series trucks. Fits sliding windows or one piece glass. New replacement parts.

https://www.ebay.com/itm/Rear-window-se ... 0033.m2042
1971 J4600 with Dauntless 350

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Cecil14
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Re: J Truck Rear Window Sizes, Two Different "Big Windows"?

Postby Cecil14 » Tue Oct 02, 2018 2:29 pm

There are no J-trucks after 1988, and likely none built after 1987 in reality (just sold as '88s). He is likely referring to the Comanche, which a lot of people seem to confuse with the J-series.


aa
Anthony

1983 J-10 - 4.6L(MPFI)/CS130D/Hydroboost/NV3550/D300/44/44/3.54/Disc-Disc/32s/42 gallon 'burb tank

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Maddening
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Re: J Truck Rear Window Sizes, Two Different "Big Windows"?

Postby Maddening » Thu Oct 04, 2018 4:32 am

Thanks guys, the pics and dimensions posted by 1971J4000 seem to pretty much look like mine. I have been working 12 hour days so no time to break out and measure it, but just first glance of mine from the back it seems the same. I can't imagine there are two different ones, that would make very little sense. The gasket has to be just crap and too big.
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1977 J10 - It's BLUE.
2017 JK Rubicon - It's GREEN

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1971J4000
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Re: J Truck Rear Window Sizes, Two Different "Big Windows"?

Postby 1971J4000 » Thu Oct 04, 2018 6:02 am

The stationary glass that we replaced with the slider

Bottom width 53 3/8"

Top width (at widest point just before the curve 47 1/2")

The slider is the model 515.

Image
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1971 J4600 with Dauntless 350

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1971J4000
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Re: J Truck Rear Window Sizes, Two Different "Big Windows"?

Postby 1971J4000 » Thu Oct 11, 2018 8:56 am

Oops did not mean to post this
1971 J4600 with Dauntless 350

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Kaiserman
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Re: J Truck Rear Window Sizes, Two Different "Big Windows"?

Postby Kaiserman » Thu Oct 11, 2018 9:05 pm

All large window Jeeps have the same dimensions. I'd say the problem is between the aftermarket sliding window and the after market gasket.
1971 J2500 Gladiator Custom-Cab Platform Stake on 126" wb. B350/T18A/D20 D60/D60-3 w/locker 4.10's Ramsey 8klb PTO winch, Day-brook dump. 235/85R16's
1969 J3800 Gladiator 3407Z Camper Truck. B350/T18A/D20 D44/D60-3 w/4.10's
1968 J3800 Gladiator 3406Z Custom Cab 160" wheel base dually. 24K miles. B350/T18A/D20 D44HD/D70 posi w/4.88's 7/50-16's
1963 J300 Gladiator Townside Buick 350/Th400/D20 D44/D53 4.27 gears. Stock Meyers plow, 225/95R16's


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