Measurement request - manual trans owners step inside! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**JJorgensen52** · 05-15-2019, 09:13 PM

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!

S10Fan · 05-16-2019, 07:11 PM

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

**JJorgensen52** · 05-16-2019, 08:35 PM

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!

**hatzie** · 05-17-2019, 09:07 AM

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.

**JJorgensen52** · 05-17-2019, 09:39 AM

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

**hatzie** · 05-18-2019, 08:10 PM

Quote:

Originally Posted by JJorgensen52

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.

05-15-2019, 09:13 PM	#1
JJorgensen52 Simple? What's simple? Join Date: Apr 2007 Location: Southeast CT Posts: 1,472	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! __________________ 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 one of these days...) Photos '69 CST/10 4x4 SWB Stepper 350 2bbl - NV4500/NP241C (Broken Truck!) '72 Sierra Grande 2WD LWB fleetside 350-TH350 Refresh '99 K2500 Silverado RCLB 5.7 Vortec - NV4500/NP241C (Daily) '99 K2500 Suburban 7.4 Vortec - NV4500/NP246 (still working out the bugs) SOLD '71 Custom/10 2WD LWB fleetside - '72 GMC K/3500 Dually (Sold to redryder)

05-16-2019, 07:11 PM	#2
S10Fan Old Heap Driver Join Date: Mar 2008 Location: Newport News, Va Posts: 2,638	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 __________________ _____________________________ Bryan '99 Silverado 1500, 4.3, 5-speed, reg cab, short bed '50 Chevy 2DR Hard Top, 350/350, M2 Front End, 3:08 gear, cruiser. '30 Model A Pickup, suicide front end, 350, 350, traditional style hot rod.

05-16-2019, 08:35 PM	#3
JJorgensen52 Simple? What's simple? Join Date: Apr 2007 Location: Southeast CT Posts: 1,472	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! __________________ 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 one of these days...) Photos '69 CST/10 4x4 SWB Stepper 350 2bbl - NV4500/NP241C (Broken Truck!) '72 Sierra Grande 2WD LWB fleetside 350-TH350 Refresh '99 K2500 Silverado RCLB 5.7 Vortec - NV4500/NP241C (Daily) '99 K2500 Suburban 7.4 Vortec - NV4500/NP246 (still working out the bugs) SOLD '71 Custom/10 2WD LWB fleetside - '72 GMC K/3500 Dually (Sold to redryder)

05-17-2019, 09:07 AM	#4
hatzie Moderator Join Date: Oct 2008 Location: Wentworth, NH Posts: 4,912	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. __________________ 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... 1973-1991 GM Light Truck Service, Unit/Overhaul, Wiring Manuals, Parts Books and Some 1968-1999 GM Service Training textbooks in PDF 1988-1998 GMT400 CK service manual project 1988-1993 GMT400 CK parts books. 1967-1972 GM Light, Medium, & Heavy Truck Service Manuals in PDF 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.

05-17-2019, 09:39 AM	#5
JJorgensen52 Simple? What's simple? Join Date: Apr 2007 Location: Southeast CT Posts: 1,472	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 __________________ 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 one of these days...) Photos '69 CST/10 4x4 SWB Stepper 350 2bbl - NV4500/NP241C (Broken Truck!) '72 Sierra Grande 2WD LWB fleetside 350-TH350 Refresh '99 K2500 Silverado RCLB 5.7 Vortec - NV4500/NP241C (Daily) '99 K2500 Suburban 7.4 Vortec - NV4500/NP246 (still working out the bugs) SOLD '71 Custom/10 2WD LWB fleetside - '72 GMC K/3500 Dually (Sold to redryder)



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