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Old 05-15-2019, 09:13 PM   #1
JJorgensen52
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Measurement request - manual trans owners step inside!

Evening folks-

I'm in the middle of gathering parts for a gmt400 5 speed conversion, and I've just found out that GM discontinued the shifter boot for my truck. I *believe* the boot they used on 99-06 trucks will interchange, but I don't have one handy to compare.

So, would some kind soul be willing to measure the overall base length / width of the shift boot, and also the spacing of the screws retaining trim ring on the boot.

Thanks in advance!
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Old 05-16-2019, 07:11 PM   #2
S10Fan
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Re: Measurement request - manual trans owners step inside!

9" wide by 8-1/2".

Mine only has 4 screws, 1 in each corner under the rubber. There are some other holes that are larger, perhaps something left over from the molding process.

99 Silverado 1500, 5-speed, 4.3 V6
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Old 05-16-2019, 08:35 PM   #3
JJorgensen52
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Re: Measurement request - manual trans owners step inside!

Well that's unfortunate! I just went out and checked the boot in my pickup, it's 6-3/4" square. Same 4 screws in the corners.

Back to the drawing board. S10Fan, thank you sir!
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'50 GMC 100 shortbed Gen IV 4.8 LS - 4L65E (Secret truck, Shhh!!!) Build
'63 Buick Wildcat Coupe 401ci Nailhead (Very much in pieces) Photos
'66 Impala SS convertible 327-QJet-glide (4 speed swap in the works!!) Photos
'69 CST/10 4x4 SWB Stepper 350 2bbl - NV4500/NP241C (Broken Truck!)
'71 Custom/10 2WD LWB fleetside 307 2bbl - 3 OTT (weekend chore truck)
'72 Sierra Grande 2WD LWB fleetside 350-TH350 (3OTT coming soon) Refresh
'99 K2500 Silverado RCLB 5.7 Vortec - NV4500/NP241C (Daily)
SOLD
'67 C30 Dump (parted) - '72 GMC K/3500 Dually (Sold to redryder) - '87 V3500 Dump (parted) - '92 GMC Sonoma GT 5 speed conversion - '92 Sonoma GT - '93 GMC Typhoon - '93 S10 Tahoe - '95 GMC K1500 Stepside - '10 HHR SS (Totalled)
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Old 05-17-2019, 09:07 AM   #4
hatzie
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Re: Measurement request - manual trans owners step inside!

Have you already cut a hole in the floor?
The Kenworth T800 & T600 boots are 7-3/4" square. That's only 1" difference edge total or 1/2" on each edge when you split the difference.
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Old 05-17-2019, 09:39 AM   #5
JJorgensen52
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Re: Measurement request - manual trans owners step inside!

No, not yet. That is an interesting thought!

Overall, I'm trying to stay as factory as possible, and was hoping to go by the pre-dimpled markings on the trans tunnel, but that may not be an option if I can't find a good boot. The one in my donor is shredded
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CURRENT
'50 GMC 100 shortbed Gen IV 4.8 LS - 4L65E (Secret truck, Shhh!!!) Build
'63 Buick Wildcat Coupe 401ci Nailhead (Very much in pieces) Photos
'66 Impala SS convertible 327-QJet-glide (4 speed swap in the works!!) Photos
'69 CST/10 4x4 SWB Stepper 350 2bbl - NV4500/NP241C (Broken Truck!)
'71 Custom/10 2WD LWB fleetside 307 2bbl - 3 OTT (weekend chore truck)
'72 Sierra Grande 2WD LWB fleetside 350-TH350 (3OTT coming soon) Refresh
'99 K2500 Silverado RCLB 5.7 Vortec - NV4500/NP241C (Daily)
SOLD
'67 C30 Dump (parted) - '72 GMC K/3500 Dually (Sold to redryder) - '87 V3500 Dump (parted) - '92 GMC Sonoma GT 5 speed conversion - '92 Sonoma GT - '93 GMC Typhoon - '93 S10 Tahoe - '95 GMC K1500 Stepside - '10 HHR SS (Totalled)
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Old 05-18-2019, 08:10 PM   #6
hatzie
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Re: Measurement request - manual trans owners step inside!

Quote:
Originally Posted by JJorgensen52 View Post
No, not yet. That is an interesting thought!

Overall, I'm trying to stay as factory as possible, and was hoping to go by the pre-dimpled markings on the trans tunnel, but that may not be an option if I can't find a good boot. The one in my donor is shredded
If you install it carefully then it shouldn't be an issue.
You're not going to Pebble Beach with it... You just want it to look decent. Don't we all. It wouldn't pass full concourse muster with a non-stock non original transmission but who really cares.
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1959 M35A2 LDT465-1D SOLD
1967 Dodge W200 B383, NP420/NP201 SOLD
1969 Dodge Polara 500 B383, A833 SOLD
1972 Ford F250 FE390, NP435/NP205 SOLD
1976 Chevy K20, 6.5L, NV4500/NP208 SOLD
1986 M1008 CUCV SOLD
2000 GMC C2500, TD6.5L, NV4500
2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263
2009 Impala SS LS4 V8


RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...Please include at least the year and model in your threads. It'll be easier to answer your questions.
And please let us know if and how your repairs were successful.
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