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Are There Spacers I Can Use Wit The Timbren Rear Suspension Enhancement System TGMRK10?  

Updated 05/04/2026 | Published 04/30/2026

Question:

Hi, I have a 1990 chevy k5 blazer with a 3inch lift , I sometimes tow a trailer 5x10 with firewood or at. Im looking at part TGMRK10. What spacer kit would be compatible with TGMRK10. Thanks, Michael

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Expert Reply:

Hey Michael, thanks for reaching out. I see you already got the # TGMRK10 kit on order, but I wanted to make sure your spacer question was answered.

There are spacers you can use with that kit. The Timbren 1" Spacer For Raised Frame Vehicles - 3/8" Bushing # A25723-90AH00 is what you'll need for that. You'll probably need 2 or 3 per side to achieve the recommended 1/2" to 1-1/2" gap. Just keep in mind if the spacers are used, the included bolts will not be long enough and you'll need to source new bolts locally. Just make sure they are grade 5 or higher.

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Jesse M
Michael M. profile picture

Michael M.

5/4/2026

Hi Jesse, thanks for getting back to me. I talked to Summer at Timbren in Canada she said I need to get this special order part # GMRK10-P1.5 Could you check on that and possibly order it for me ? Let me know, thanks Michael

Jesse M. profile picture
Etrailer Expert

Jesse M.

5/4/2026

@MichaelM Ok gotcha. We don't do any of the special order Timbren kits here unfortunately, but did she say exactly what is included with that kit? It sounds like it might be just the TGMRK10 kit with spacers included. 1.5" worth of spacers perhaps?
Michael M. profile picture

Michael M.

5/4/2026

Jesse, do you have an extension so that I could call you ?
Michael M. profile picture

Michael M.

5/4/2026

I’ll wait till my order comes in, I’ll measure the difference and order spacers as needed Thanks Michael
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